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OSNR Values for 100G and ...

OSNR Values for 100G and 10G Lambda

Created: Dec 1, 2021 11:30:17Latest reply: Dec 1, 2021 16:44:37 282 6 0 0 0
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Hi there!

I want to ask what are the OSNR high and low threshold values for 10G and 100G( incoming and outgoing ) lambda for OTN 9800 and OSN 6800.

If i am troubleshooting a specific lambda how can I know if the OSNR is upto the mark.

OSN6800OSN9800osn9800 UPS

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Malik3000
MVE Created Dec 1, 2021 16:44:37

Dear Waqas
The OSNR sensitivity differs according to many parameters like code pattern for example the OTU named LSX used for 10G in 9800 and 6800 there is a version has lowest OSNR sensitivity =16 and other LSX hard version has lowest OSNR sensitivity =13 .

About OSNR calculation it needs alot of pareameters like optical power in each span and NF(noise figure) for each amplifier ... and the value will be approximate not exact .
Please have a look to this Question anout OSNR calculation.

https://support.huawei.com/enterprise/en/knowledge/EKB0000592366

Regards


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liqiang185
liqiang185 Created Dec 2, 2021 00:44:26 (0) (0)
Good!  
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Nino_Chou
Nino_Chou Admin Created Dec 1, 2021 11:30:43

Hello, friend!
It's nice to meet you in the community.
We're working on getting the right answer for you.
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liqiang185
liqiang185 Admin Created Dec 1, 2021 12:39:03

Dear friend!
1. The signal quality is measured not only by the OSNR, but also by the optical power, dispersion, and non-linear effect. Different boards have different performance requirements. Therefore, the OSNR threshold of the board is not defined. If the OSNR value of an optical signal is very high but the optical power is very low, the communication fails.
2. Generally, if the other performance of the optical signal meets the requirements, according to our experience, the OSNR value of the signal is needs to more than 20 dB.
Thank you！

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Waqas_ahmed_1995
Waqas_ahmed_1995 Created Dec 1, 2021 13:40:06

Posted by liqiang185 at 2021-12-01 12:39 Dear friend!1. The signal quality is measured not only by the OSNR, but also by the optical power, d ...
is there any formula to calculate OSNR?
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liqiang185
liqiang185 Created Dec 2, 2021 01:14:12 (0) (0)
OSNR(dB)= 10lg(Pi/Ni)+10lg(Bm/Br)
Pi: signal power on the i channel
Bm: equivalent noise bandwidth
Ni: noise power introduced within the Bm
Br: reference optical bandwidth, which is usually 0.1 nm  
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Malik3000
Malik3000 MVE Created Dec 1, 2021 16:44:37

Dear Waqas
The OSNR sensitivity differs according to many parameters like code pattern for example the OTU named LSX used for 10G in 9800 and 6800 there is a version has lowest OSNR sensitivity =16 and other LSX hard version has lowest OSNR sensitivity =13 .

About OSNR calculation it needs alot of pareameters like optical power in each span and NF(noise figure) for each amplifier ... and the value will be approximate not exact .
Please have a look to this Question anout OSNR calculation.

https://support.huawei.com/enterprise/en/knowledge/EKB0000592366

Regards


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  • x
  • convention：

liqiang185
liqiang185 Created Dec 2, 2021 00:44:26 (0) (0)
Good!  
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