Logo-optiwave
Search
Close this search box.
Free Evaluation

Optical Signal to noise ratio

Home › Forums › SYSTEM › Optical Signal to noise ratio

Viewing 8 reply threads
  • Author
    Posts
    • April 7, 2016 at 8:18 am #36011
      jyoti raina
      Spectator

      Hello Everybody.

      I am actually designing a four channel basic wdm system and no doubt i am able to calculate the min ber and max quality factor of each receiver on the reception side.. Here i would like to ask if it possible to calculate the overall signal to noise ratio of the whole system . Please can you tell me if there is some procedure or method to do so.. i want to calculate the optical signal to noise ratio (OSNR) of the system.. I hope i will get some response from you people..
      Thanking you in advance.

      with Regards
      jyoti sharma

    • April 7, 2016 at 8:42 am #36013
      Dr. Dhiman Kakati
      Participant

      Hi Jyoti you can use WDM analyzer for calculation of Optical Signal to noise ratio. I have attached here with a sample that may find beneficial. Thanks

      Regards,
      Dhiman

    • April 7, 2016 at 12:42 pm #36030
      jyoti raina
      Spectator

      Hi Dhiman Sir.. Thanks a lot. Thank you for your kind efforts.

      I Shall try this and see if i get what i want.. I am again thankful to you.

    • April 8, 2016 at 2:29 am #36075
      jyoti raina
      Spectator

      Thanks Dhiman Sir..
      It was really helpful.. I appreciate your kind efforts.

      • April 8, 2016 at 3:10 am #36082
        Dr. Dhiman Kakati
        Participant

        You are most welcome Jyoti, Nice to see some good question from your side in the forum.

        Regards,
        Dhiman

    • April 8, 2016 at 5:33 am #36092
      jyoti raina
      Spectator

      Hi Dhiman Sir..
      Thank you for your appreciation..

      With regards
      jyoti Raina

    • April 10, 2016 at 5:27 am #36213
      SAHIL SINGH
      Participant

      Hi Jyoti

      As rightly mentioned by Dhiman we can use WDM analyzer for calculation of Optical Signal to noise ratio… A very useful point figured out by Dhiman.. Hope this helps

      Regards
      Sahil Singh

      • April 10, 2016 at 5:35 am #36216
        jyoti raina
        Spectator

        Hi Sahil Sir..
        Thanks for your reply..indeed it was helpful.i found it on the forum too..WDM analyzer is used to measure OSNR and SNR directly..Thanking you..
        With Regards
        Jyoti Raina

    • April 10, 2016 at 6:38 am #36219
      SAHIL SINGH
      Participant

      Hi Jyoti Raina,

      You are welcome and as always optiwave forum has provided very useful information… Glad to know that your query was resolved…All the best

      Regards
      Sahil Singh

    • April 10, 2016 at 8:05 am #36227
      jyoti raina
      Spectator

      hi sahil sir..
      i truly agree with you..

      With regards
      jyoti raina

    • April 15, 2016 at 7:21 am #36880
      Rajguru M. Mohan
      Participant

      Hi Jyoti,
      We could measure OSNR with the help of BER of BER analyzer,
      The formula for calculating OSNR from BER is :
      We can also use WDM analyzer to check the OSNR.
      Given the OSNR, the empirical formula to calculate BER for single fiber is

      Log10 (BER) = 10.7-1.45 (OSNR)
      For Example:
      Assume that OSNR = 20.5 dB
      Then Log10 (BER) = 10.7-1.45 (20.5) = -19.025
      Therefore BER = 10^(-19.025)
      BER is approx 10^-19
      I think it is appropriate way to calculate BER from OSNR

      Hope this will help you.

  • Author
    Posts
Viewing 8 reply threads
  • You must be logged in to reply to this topic.

Contact us

1-866-576-6784

1-613-224-4700

info@optiwave.com

Learning

Community

Resources

© 2023 Optiwave Systems Inc.