Input power

[indayara]

Hello,

I created a topology with 3 nodes ( trx 1, connected in a roadm/fiber/trx 2; and trx2 connected in a roadm/fiber/trx 3).
I would like to apply differents input power for each transceivers.
Trx1 working in 0 dbm
Trx 2 working in -1 dBm
Trx 3 working in 1 dBm.
Is it possible?

Tks,

[ojnas]

I'm not sure what you want to do but GNPy does not currently model impact of different input powers to a transceiver. Note that the (main) output from GNPy is OSNR/GSNR, which does not depend on transceiver input power. Also, as long as the transceiver input power is "high enough", the final BER normally does not depend on this input power. However, if the input power is close to the receiver sensitivity, it will have an impact on BER. This is sometimes modeled with an OSNR penalty but such a model is currently not implemented in GNPy.

[indayara]

Hi Jonas, My network model each spans are projected to work in a specified power. For example a topology with 3 nodes and 2 spans. Connections: Node1-> ROADM1->fiber_80Km->Roadm2->Node2->Roadm3->fiber50Km->Roadm4->Node3 transmitting 40 channels between Node1 -> Node3 considering : -1dbm/channel between node1->node2 AND 0 dbm/channel between node2->node3. With Gnpy I did : 40 channels between *Node1 -> Node3* considering the same power in all spans However I' d like to transmit : 40 channels between *Node1 -> Node3* considering -1dbm/channel between node1->node2 AND 0 dbm/channel between node2->node3. Let me know if I can do it with Gnpy. Thank you for your feedback. Indayara.

…

On Wed, Oct 14, 2020 at 8:56 AM Jonas Mårtensson ***@***.***> wrote: I'm not sure what you want to do but GNPy does not currently model impact of different input powers to a transceiver. Note that the (main) output from GNPy is OSNR/GSNR, which does not depend on transceiver input power. Also, as long as the transceiver input power is "high enough", the final BER normally does not depend on this input power. However, if the input power is close to the receiver sensitivity, it will have an impact on BER. This is sometimes modeled with an OSNR penalty but such a model is currently not implemented in GNPy. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#363 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANWL3GMBUMG34WKNHV2N3ILSKVDSNANCNFSM4SPCE2RA> .

-- *Indayara Bertoldi Martins * *Ph.D Electrical Engineer* Mobile: +55 11 986868726 e-mail: ibertold@dsif.fee.unicamp.br or indayara@gmail.com Skype: Indayara B Martins

[ojnas]

It is possible to set different power in different spans by explicitly setting the gain of the EDFA in front of each span. If you could attach your topology json file I could try and help you with the necessary modifications.

[indayara]

Hi Jonas, The files were attached (NetworkRaman_jonas.json and eqpt1_config.json) I added 2 news amps in eqpt1_config (EK_ILHCS and EK_ILHCS1). I wish set the following power out: Power out (edfa amps) for (POP Mnaheim to SM2 MOR Adelrsried) and (Wiener Neustadt to Hartberg): 15dBm; Power out for other amps:17dBm; Thank you for your support. Indayara.

…

On Wed, Oct 14, 2020 at 9:04 PM Jonas Mårtensson ***@***.***> wrote: It is possible to set different power in different spans by explicitly setting the gain of the EDFA in front of each span. If you could attach your topology json file I could try and help you with the necessary modifications. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#363 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANWL3GLH5MND66VNDEYZTHDSKXY2XANCNFSM4SPCE2RA> .

-- *Indayara Bertoldi Martins * *Ph.D Electrical Engineer* Mobile: +55 11 986868726 e-mail: ibertold@dsif.fee.unicamp.br or indayara@gmail.com Skype: Indayara B Martins

[ojnas]

Hmm, I don't see any attachment. Maybe github does not support attaching json files. Try to zip them or change extension to .txt.

[jktjkt]

@indayara , you'll have to visit GitHub's web interface and attach these files from there. E-mail attachments are not picked up on GitHub.

[indayara]

files in .txt. tks, Indayara.

…

On Wed, Oct 21, 2020 at 11:02 AM Jonas Mårtensson ***@***.***> wrote: Hmm, I don't see any attachment. Maybe github does not support attaching json files. Try to zip them or change extension to .txt. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#363 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANWL3GL7DKVOXP4ZYXZDV7LSL2PTRANCNFSM4SPCE2RA> .

-- *Indayara Bertoldi Martins * *Ph.D Electrical Engineer* Mobile: +55 11 986868726 e-mail: ibertold@dsif.fee.unicamp.br or indayara@gmail.com Skype: Indayara B Martins { "elements": [ { "uid": "trx Frankfurt", "metadata": { "location": { "city": "Frankfurt", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Transceiver" }, { "uid": "trx Munchen", "metadata": { "location": { "city": "Munchen", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Transceiver" }, { "uid": "trx Salzburg", "metadata": { "location": { "city": "Salzburg", "region": "RLD", "latitude": 2.0, "longitude": 4.0 } }, "type": "Transceiver" }, { "uid": "trx Vienna Interxion", "metadata": { "location": { "city": "Vienna Interxion", "region": "RLD", "latitude": 2.0, "longitude": 4.0 } }, "type": "Transceiver" }, { "uid": "trx Graz West", "metadata": { "location": { "city": "Graz West", "region": "RLD", "latitude": 2.0, "longitude": 4.0 } }, "type": "Transceiver" }, { "uid": "trx MB Forum", "metadata": { "location": { "city": "MB Forum", "region": "RLD", "latitude": 2.0, "longitude": 4.0 } }, "type": "Transceiver" }, { "uid": "trx LJ Brnciceva", "metadata": { "location": { "city": "LJ Brnciceva", "region": "RLD", "latitude": 2.0, "longitude": 4.0 } }, "type": "Transceiver" }, { "uid": "trx Zagreb", "metadata": { "location": { "city": "Zagreb", "region": "RLD", "latitude": 2.0, "longitude": 4.0 } }, "type": "Transceiver" }, { "uid": "trx Beograd", "metadata": { "location": { "city": "Beograd", "region": "RLD", "latitude": 2.0, "longitude": 4.0 } }, "type": "Transceiver" }, { "uid": "trx Sofia", "metadata": { "location": { "city": "Sofia", "region": "RLD", "latitude": 2.0, "longitude": 4.0 } }, "type": "Transceiver" }, { "uid": "trx Istanbul", "metadata": { "location": { "city": "Istanbul", "region": "RLD", "latitude": 2.0, "longitude": 4.0 } }, "type": "Transceiver" }, { "uid": "roadm Frankfurt", "metadata": { "location": { "city": "Frankfurt", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm Munchen", "metadata": { "location": { "city": "Munchen", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm Salzburg", "metadata": { "location": { "city": "Salzburg", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm Vienna Interxion", "metadata": { "location": { "city": "Vienna Interxion", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm Graz West", "metadata": { "location": { "city": "Graz West", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm MB Forum", "metadata": { "location": { "city": "MB Forum", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm LJ Brnciceva", "metadata": { "location": { "city": "LJ Brnciceva", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm Zagreb", "metadata": { "location": { "city": "Zagreb", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm Beograd", "metadata": { "location": { "city": "Beograd", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm Sofia", "metadata": { "location": { "city": "Sofia", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "roadm Istanbul", "metadata": { "location": { "city": "Istanbul", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Roadm" }, { "uid": "edfa Pop Mnaheim", "metadata": { "location": { "city": "Pop Mnaheim", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS1", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Mor Karlsruhe", "metadata": { "location": { "city": "Mor Karlsruhe", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS1", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Pop Stuttgart", "metadata": { "location": { "city": "Pop Stuttgart", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS1", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa SM1 Mor Aichen", "metadata": { "location": { "city": "SM1 Mor Aichen", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS1", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa SM2 Mor Adelsried", "metadata": { "location": { "city": "SM2 Mor Adelsried", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS1", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Station Halfing", "metadata": { "location": { "city": "Station Halfing", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Frankenmarkt", "metadata": { "location": { "city": "Frankenmarkt", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Sattledt", "metadata": { "location": { "city": "Sattledt", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Amstetten", "metadata": { "location": { "city": "Amstetten", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa St Polten", "metadata": { "location": { "city": "St Polten", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Sittendorf", "metadata": { "location": { "city": "Sittendorf", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Wiener Neustadt", "metadata": { "location": { "city": "Wiener Neustadt", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS1", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Hartberg", "metadata": { "location": { "city": "Hartberg", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS1", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Vransko", "metadata": { "location": { "city": "Vransko", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Nove Mesto", "metadata": { "location": { "city": "Nove Mesto", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Sisak", "metadata": { "location": { "city": "Sisak", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Okucani", "metadata": { "location": { "city": "Okucani", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Slobodnica", "metadata": { "location": { "city": "Slobodnica", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Mirkovci", "metadata": { "location": { "city": "Mirkovci", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Novi Sad", "metadata": { "location": { "city": "Novi Sad", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Mladenovac", "metadata": { "location": { "city": "Mladenovac", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Kragujevac", "metadata": { "location": { "city": "Kragujevac", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Kraljevo", "metadata": { "location": { "city": "Kraljevo", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Krusevac", "metadata": { "location": { "city": "Krusevac", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Nis", "metadata": { "location": { "city": "Nis", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Pirot", "metadata": { "location": { "city": "Pirot", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Ihtiman", "metadata": { "location": { "city": "Ihtiman", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Pazardzhik", "metadata": { "location": { "city": "Pazardzhik", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Plovdiv", "metadata": { "location": { "city": "Plovdiv", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Haskovo", "metadata": { "location": { "city": "Haskovo", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Svilengrad", "metadata": { "location": { "city": "Svilengrad", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Edirne", "metadata": { "location": { "city": "Edirne", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Luleburgaz", "metadata": { "location": { "city": "Luleburgaz", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "edfa Silivri", "metadata": { "location": { "city": "Silivri", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS", "operational": { "gain_target": 22, "delta_p": null, "tilt_target": 0, "out_voa": 0 } }, { "uid": "Span1", "type": "RamanFiber", "type_variety": "SSMF", "operational": { "temperature": 283, "raman_pumps": [ { "power": 200e-3, "frequency": 205e12, "propagation_direction": "counterprop" }, { "power": 206e-3, "frequency": 201e12, "propagation_direction": "counterprop" } ] }, "params": { "type_variety": "SSMF", "length": 120.0, "loss_coef": 0.25, "length_units": "km", "att_in": 0, "con_in": 0.0, "con_out": 0.0 }, "metadata": { "location": { "latitude": 0.0, "longitude": 0.5, "city": null, "region": "" } } }, { "uid": "Span2", "type": "RamanFiber", "type_variety": "SSMF", "operational": { "temperature": 283, "raman_pumps": [ { "power": 200e-3, "frequency": 205e12, "propagation_direction": "counterprop" }, { "power": 206e-3, "frequency": 201e12, "propagation_direction": "counterprop" } ] }, "params": { "type_variety": "SSMF", "length": 94.0, "loss_coef": 0.223, "length_units": "km", "att_in": 0, "con_in": 0.0, "con_out": 0.0 }, "metadata": { "location": { "latitude": 0.0, "longitude": 0.5, "city": null, "region": "" } } }, { "uid": "fiber1", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "NZDF", "params": { "length": 72.0, "length_units": "km", "loss_coef": 0.236, "con_in": null, "con_out": null } }, { "uid": "fiber2", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "NZDF", "params": { "length": 70.0, "length_units": "km", "loss_coef": 0.228, "con_in": null, "con_out": null } }, { "uid": "fiber3", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "NZDF", "params": { "length": 70.0, "length_units": "km", "loss_coef": 0.228, "con_in": null, "con_out": null } }, { "uid": "fiber4", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "NZDF", "params": { "length": 80.0, "length_units": "km", "loss_coef": 0.225, "con_in": null, "con_out": null } }, { "uid": "fiber5", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "NZDF", "params": { "length": 85.0, "length_units": "km", "loss_coef": 0.223, "con_in": null, "con_out": null } }, { "uid": "fiber6", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "SSMF", "params": { "length": 86.0, "length_units": "km", "loss_coef": 0.209, "con_in": null, "con_out": null } }, { "uid": "fiber7", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "SSMF", "params": { "length": 53.0, "length_units": "km", "loss_coef": 0.207, "con_in": null, "con_out": null } }, { "uid": "fiber8", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "SSMF", "params": { "length": 68.0, "length_units": "km", "loss_coef": 0.205, "con_in": null, "con_out": null } }, { "uid": "fiber9", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "SSMF", "params": { "length": 76.0, "length_units": "km", "loss_coef": 0.197, "con_in": null, "con_out": null } }, { "uid": "fiber10", "metadata": { "location": { "latitude": 2.0, "longitude": 3.5 } }, "type": "Fiber", "type_variety": "SSMF", "params": { "length": 80.0, "length_units": "km", 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"gain_min": 25, "preamp_variety": "std_medium_gain", "booster_variety": "std_low_gain", "allowed_for_design": true }, { "type_variety": "medium+high_power", "type_def": "dual_stage", "gain_min": 25, "preamp_variety": "std_medium_gain", "booster_variety": "high_power", "allowed_for_design": false } ], "Fiber":[{ "type_variety": "SSMF", "dispersion": 1.67e-05, "gamma": 0.00127 }, { "type_variety": "NZDF", "dispersion": 0.5e-05, "gamma": 0.00146 }, { "type_variety": "LOF", "dispersion": 2.2e-05, "gamma": 0.000843 } ], "RamanFiber":[{ "type_variety": "SSMF", "dispersion": 0.5e-05, "gamma": 0.00146, "raman_efficiency": { "cr":[ 0, 9.4E-06, 2.92E-05, 4.88E-05, 6.82E-05, 8.31E-05, 9.4E-05, 0.0001014, 0.0001069, 0.0001119, 0.0001217, 0.0001268, 0.0001365, 0.000149, 0.000165, 0.000181, 0.0001977, 0.0002192, 0.0002469, 0.0002749, 0.0002999, 0.0003206, 0.0003405, 0.0003592, 0.000374, 0.0003826, 0.0003841, 0.0003826, 0.0003802, 0.0003756, 0.0003549, 0.0003795, 0.000344, 0.0002933, 0.0002024, 0.0001158, 8.46E-05, 7.14E-05, 6.86E-05, 8.5E-05, 8.93E-05, 9.01E-05, 8.15E-05, 6.67E-05, 4.37E-05, 3.28E-05, 2.96E-05, 2.65E-05, 2.57E-05, 2.81E-05, 3.08E-05, 3.67E-05, 5.85E-05, 6.63E-05, 6.36E-05, 5.5E-05, 4.06E-05, 2.77E-05, 2.42E-05, 1.87E-05, 1.6E-05, 1.4E-05, 1.13E-05, 1.05E-05, 9.8E-06, 9.8E-06, 1.13E-05, 1.64E-05, 1.95E-05, 2.38E-05, 2.26E-05, 2.03E-05, 1.48E-05, 1.09E-05, 9.8E-06, 1.05E-05, 1.17E-05, 1.25E-05, 1.21E-05, 1.09E-05, 9.8E-06, 8.2E-06, 6.6E-06, 4.7E-06, 2.7E-06, 1.9E-06, 1.2E-06, 4E-07, 2E-07, 1E-07 ], "frequency_offset":[ 0, 0.5e12, 1e12, 1.5e12, 2e12, 2.5e12, 3e12, 3.5e12, 4e12, 4.5e12, 5e12, 5.5e12, 6e12, 6.5e12, 7e12, 7.5e12, 8e12, 8.5e12, 9e12, 9.5e12, 10e12, 10.5e12, 11e12, 11.5e12, 12e12, 12.5e12, 12.75e12, 13e12, 13.25e12, 13.5e12, 14e12, 14.5e12, 14.75e12, 15e12, 15.5e12, 16e12, 16.5e12, 17e12, 17.5e12, 18e12, 18.25e12, 18.5e12, 18.75e12, 19e12, 19.5e12, 20e12, 20.5e12, 21e12, 21.5e12, 22e12, 22.5e12, 23e12, 23.5e12, 24e12, 24.5e12, 25e12, 25.5e12, 26e12, 26.5e12, 27e12, 27.5e12, 28e12, 28.5e12, 29e12, 29.5e12, 30e12, 30.5e12, 31e12, 31.5e12, 32e12, 32.5e12, 33e12, 33.5e12, 34e12, 34.5e12, 35e12, 35.5e12, 36e12, 36.5e12, 37e12, 37.5e12, 38e12, 38.5e12, 39e12, 39.5e12, 40e12, 40.5e12, 41e12, 41.5e12, 42e12 ] } } ], "Span":[{ "power_mode":true, "delta_power_range_db": [0,0,0], "max_fiber_lineic_loss_for_raman": 0.25, "target_extended_gain": 2.5, "max_length": 150, "length_units": "km", "max_loss": 28, "padding": 0, "EOL": 0, "con_in": 0, "con_out": 0 } ], "Roadm":[{ "target_pch_out_db": -18, "add_drop_osnr": 38, "restrictions": { "preamp_variety_list":["Ek_ILHCS"], "booster_variety_list":["Ek_ILHCS"] } } ], "SI":[{ "f_min": 192.0e12, "baud_rate": 41.001e9, "f_max":194.0e12, "spacing": 50e9, "power_dbm": -1, "power_range_db": [0,0,0], "roll_off": 0.2, "tx_osnr": 42, "sys_margins": 0 }], "Transceiver":[ { "type_variety": "vendorA_trx-type1", "frequency":{ "min": 191.35e12, "max": 196.1e12 }, "mode":[ { "format": "mode 1", "baud_rate": 32e9, "OSNR": 11, "bit_rate": 100e9, "roll_off": 0.15, "tx_osnr": 40, "min_spacing": 37.5e9, "cost":1 }, { "format": "mode 2", "baud_rate": 66e9, "OSNR": 15, "bit_rate": 200e9, "roll_off": 0.15, "tx_osnr": 40, "min_spacing": 75e9, "cost":1 } ] }, { "type_variety": "Voyager", "frequency":{ "min": 191.7e12, "max": 196.15e12 }, "mode":[ { "format": "mode 1", "baud_rate": 32e9, "OSNR": 12, "bit_rate": 100e9, "roll_off": 0.15, "tx_osnr": 40, "min_spacing": 37.5e9, "cost":1 }, { "format": "mode 3", "baud_rate": 44e9, "OSNR": 18, "bit_rate": 100e9, "roll_off": 0.15, "tx_osnr": 40, "min_spacing": 62.5e9, "cost":1 }, { "format": "mode 2", "baud_rate": 66e9, "OSNR": 21, "bit_rate": 100e9, "roll_off": 0.15, "tx_osnr": 40, "min_spacing": 75e9, "cost":1 }, { "format": "mode 4", "baud_rate": 66e9, "OSNR": 16, "bit_rate": 100e9, "roll_off": 0.15, "tx_osnr": 40, "min_spacing": 75e9, "cost":1 } ] } ] }

[ojnas]

First of all, the only way to have full control of the power levels in every span (as fas as I know) is to set "power_mode":false under Span in the equipment configuration file. Then you have to manually calculate and set the gain of each Edfa in the topology file to have the desired power out (depending on power in). You also have to make sure the resulting gain and power level are within the Edfa range specified in the equipment configuration file.

[Tobelightbeam]

hi @ojnas and @indayara ,
maybe we can do this in power mode through the "delta_p" of EDFA rather than target gain. In this way, the gain of a EDFA will be set according to the "delta_p" of EDFA and power_dbm of SI.

[ojnas]

@Tobelightbeam, you are right, thanks. Somehow I overlooked the possibility of setting delta_p manually in the topology file (it's not a well documented feature).

@indayara, this is probably the easiest way to achieve what you want. In this case you set "power_mode": true (as you already had in your eqpt config). The reference Edfa output power per channel is then defined by the "power_dbm" parameter under "SI" in the equipment configuration file (at least if you're running the gnpy-transmission-example script). For all the Edfas in the network that should use this reference power level you can either explicitly set "delta_p": 0 in the topology file or you can leave it as "delta_p": null if you also set "delta_power_range_db": [0,0,0] under "Span" in the equipment configuration file (I think you already had this). If you want an Edfa to have 2 dB lower output power than the reference you just set "delta_p": -2 in the topology file for this Edfa (the "gain_target" parameter for every Edfa in the topology file is overwritten in power_mode so you can remove it or leave it as is, it doesn't matter). Note however that the power will be "clamped" during propagation if the resulting total power is higher than the "p_max" for this Edfa type_variety specified in the equipment configuration file. So for example, for the Edfa in POP Mnaheim it could look something like this:

     {
      "uid": "edfa Pop Mnaheim",
      "metadata": {
        "location": {
          "city": "Pop Mnaheim",
          "region": "RLD",
          "latitude": 2.0,
          "longitude": 3.0
        }
      },
      "type": "Edfa",
      "type_variety": "EK_ILHCS1",
      "operational": {
         "delta_p": -2,
         "tilt_target": 0,
         "out_voa": 0
      }
    },

[indayara]

@ojnas <https://github.com/ojnas> and @Tobelightbeam <https://github.com/Tobelightbeam>, thank for feedback. I'll do this. Indayara.

…

On Mon, Oct 26, 2020 at 2:14 PM Jonas Mårtensson ***@***.***> wrote: @Tobelightbeam <https://github.com/Tobelightbeam>, you are right, thanks. Somehow I overlooked the possibility of setting delta_p manually in the topology file (it's not a well documented feature). @indayara <https://github.com/indayara>, this is probably the easiest way to achieve what you want. In this case you set "power_mode": true (as you already had in your eqpt config). The reference Edfa output power per channel is then defined by the "power_dbm" parameter under "SI" in the equipment configuration file (at least if you're running the gnpy-transmission-example script). For all the Edfas in the network that should use this reference power level you can either explicitly set "delta_p": 0 in the topology file or you can leave it as "delta_p": null if you also set "delta_power_range_db": [0,0,0] under "Span" in the equipment configuration file (I think you already had this). If you want an Edfa to have 2 dB lower output power than the reference you just set "delta_p": -2 in the topology file for this Edfa (the "gain_target" parameter for every Edfa in the topology file is overwritten in power_mode so you can remove it or leave it as is, it doesn't matter). Note however that the power will be "clamped" during propagation if the resulting total power is higher than the "p_max" for this Edfa type_variety specified in the equipment configuration file. So for example, for the Edfa in POP Mnaheim it could look something like this: { "uid": "edfa Pop Mnaheim", "metadata": { "location": { "city": "Pop Mnaheim", "region": "RLD", "latitude": 2.0, "longitude": 3.0 } }, "type": "Edfa", "type_variety": "EK_ILHCS1", "operational": { "delta_p": -2, "tilt_target": 0, "out_voa": 0 } }, — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#363 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANWL3GMIWTJEICDRODYF43DSMVY3LANCNFSM4SPCE2RA> .

-- *Indayara Bertoldi Martins * *Ph.D Electrical Engineer* Mobile: +55 11 986868726 e-mail: ibertold@dsif.fee.unicamp.br or indayara@gmail.com Skype: Indayara B Martins

[indayara]

Jonas, Let me know if it is possible to implement Raman Fiber - Corning LEAF - G655 in eqpt_config.json. Thank you. Indayara. On Mon, Oct 26, 2020 at 5:33 PM Indayara Bertoldi Martins < indayara@gmail.com> wrote:

…

@ojnas <https://github.com/ojnas> and @Tobelightbeam <https://github.com/Tobelightbeam>, thank for feedback. I'll do this. Indayara. On Mon, Oct 26, 2020 at 2:14 PM Jonas Mårtensson ***@***.***> wrote: > @Tobelightbeam <https://github.com/Tobelightbeam>, you are right, > thanks. Somehow I overlooked the possibility of setting delta_p manually in > the topology file (it's not a well documented feature). > > @indayara <https://github.com/indayara>, this is probably the easiest > way to achieve what you want. In this case you set "power_mode": true > (as you already had in your eqpt config). The reference Edfa output power > per channel is then defined by the "power_dbm" parameter under "SI" in > the equipment configuration file (at least if you're running the > gnpy-transmission-example script). For all the Edfas in the network that > should use this reference power level you can either explicitly set "delta_p": > 0 in the topology file or you can leave it as "delta_p": null if you > also set "delta_power_range_db": [0,0,0] under "Span" in the equipment > configuration file (I think you already had this). If you want an Edfa to > have 2 dB lower output power than the reference you just set "delta_p": > -2 in the topology file for this Edfa (the "gain_target" parameter for > every Edfa in the topology file is overwritten in power_mode so you can > remove it or leave it as is, it doesn't matter). Note however that the > power will be "clamped" during propagation if the resulting total power is > higher than the "p_max" for this Edfa type_variety specified in the > equipment configuration file. So for example, for the Edfa in POP Mnaheim > it could look something like this: > > { > "uid": "edfa Pop Mnaheim", > "metadata": { > "location": { > "city": "Pop Mnaheim", > "region": "RLD", > "latitude": 2.0, > "longitude": 3.0 > } > }, > "type": "Edfa", > "type_variety": "EK_ILHCS1", > "operational": { > "delta_p": -2, > "tilt_target": 0, > "out_voa": 0 > } > }, > > — > You are receiving this because you were mentioned. > Reply to this email directly, view it on GitHub > <#363 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/ANWL3GMIWTJEICDRODYF43DSMVY3LANCNFSM4SPCE2RA> > . > -- *Indayara Bertoldi Martins * *Ph.D Electrical Engineer* Mobile: +55 11 986868726 e-mail: ***@***.*** or ***@***.*** Skype: Indayara B Martins

-- *Indayara Bertoldi Martins * *Ph.D Electrical Engineer* Mobile: +55 11 986868726 e-mail: ibertold@dsif.fee.unicamp.br or indayara@gmail.com Skype: Indayara B Martins

[ojnas]

Let me know if it is possible to implement Raman Fiber - Corning LEAF -
G655 in eqpt_config.json.

Yes, I think it should be possible but as for what Raman parameters to use, I'll refer the question to someone else. @AndreaDAmico, @aleFerrari?

[indayara]

Hi Jonas, I don't have the Raman parameters. I'm trying to model my topology as in Fig attached. Roadm->raman ampl-> 120Km dual fiber - G655(30dB loss)-> edfa-.... In my gnpy model I used : RAman Fiber to connect the Roadm to edfa and in Raman Fiber I declared 120Km, but I don't know.... Thank you, Indayara.

…

On Tue, Oct 27, 2020 at 2:17 PM Jonas Mårtensson ***@***.***> wrote: Let me know if it is possible to implement Raman Fiber - Corning LEAF - G655 in eqpt_config.json. Yes, I think it should be possible but as for what Raman parameters to use, I'll refer the question to someone else. @AndreaDAmico <https://github.com/AndreaDAmico>, @aleFerrari <https://github.com/aleFerrari>? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#363 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANWL3GPZQCLXASPOCU5P743SM3B6XANCNFSM4SPCE2RA> .

-- *Indayara Bertoldi Martins * *Ph.D Electrical Engineer* Mobile: +55 11 986868726 e-mail: ibertold@dsif.fee.unicamp.br or indayara@gmail.com Skype: Indayara B Martins

[ojnas]

Again, I don't see any attachment. Also, your message ended after "I don't know..." Did you mean to write what it is that you don't know?

Anyway, to simulate Raman amplification you need to supply the "raman_efficiency" parameter for the desired fiber type (G.655 in your case) in the eqpt config file. The default eqpt_config.json currently only includes the Raman efficiency for SSMF fiber type but there is an ongoing effort to obtain and include it also for other fiber types.