Q value Description

This topic has 5 replies, 6 voices, and was last updated 8 years, 1 month ago by Ranjeet Kumar.

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- April 2, 2014 at 9:07 am #10119
  
  siva rama krishna
  Participant
  
  Hi,
  The Q value obtained in BER Analyzer block is in dB or linear?
  In OptSim Q is in both dB and linear how can i compare Q values obtained from OptiSystem with same corresponding layout in OptSim software.
- April 2, 2014 at 2:43 pm #10127
  
  Tech Support
  Participant
  
  The calculated Q-factor values in OptiSystem are linear.
- March 18, 2016 at 11:02 am #33119
  
  Jojo Mathew
  Participant
  
  Hello Siva rama krishna, Tech Support is right in saying that the Q-values obtained fro the optisystem are linear. If you are interested in taking the Q-values in dB then kindly apply the log units and convert them into dB.
  Regards.
- March 18, 2016 at 11:12 am #33120
  
  SAHIL SINGH
  Participant
  
  Hi Siva Rama Krishna,
  
  As far as the calculated Q-factor values in OptiSystem are concerned,they are linear.. But i really dont know how to compare Q values obtained from OptiSystem with same corresponding layout in OptSim software…
  
  Regards
  
  Sahil Singh
- March 18, 2016 at 1:11 pm #33136
  
  MHD NA
  Participant
  
  he Q-values obtained fro the optisystem are linear. If you are interested in taking the Q-values in dB then kindly apply the log units and convert them into dB.
- March 18, 2016 at 3:55 pm #33174
  Ranjeet Kumar
  Participant
  Hi fayiqa ma’m
  In physics and engineering the quality factor or Q factor is a dimensionless parameter. The higher the Q, the narrower and ‘sharper’ the peak is. In many design we plot Q-factor and min. BER against input power in dbm.
  Attachments:
  Capture19.jpg
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