Single photon detector - Optiwave

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- November 25, 2022 at 10:00 am #79916
  
  AraSh Barghikar
  Participant
  
  HI.
  does anyone knows how to model single photon detector or single photon Avalanche detector in OPTISYSTEM?
- December 22, 2022 at 1:33 pm #81039
  
  Ahmad Atieh
  Moderator
  
  Dear Arash,
  to have a single photon system you need to set the layout bit rate to 1THz and use NRZ pulses that when modulated with 0dBm laser, the output of the modulator is -68.9dBm.
  You could use an APD with some gain to detect the single photon pulses. However, the system will be very sensitive to noise and you should have almost noise free amplifier to be able to detect the NRZ pulses.
  Regards,
  Ahmad
- December 22, 2022 at 1:33 pm #83643
  
  Ahmad Atieh
  Moderator
  
  Dear Arash,
  to have a single photon system you need to set the layout bit rate to 1THz and use NRZ pulses that when modulated with 0dBm laser, the output of the modulator is -68.9dBm.
  You could use an APD with some gain to detect the single photon pulses. However, the system will be very sensitive to noise and you should have almost noise free amplifier to be able to detect the NRZ pulses.
  Regards,
  Ahmad
- December 6, 2024 at 4:05 am #88638
  
  盛亚培
  Participant
  
  (Awaiting moderation)
- December 6, 2024 at 4:05 am #88639
  
  盛亚培
  Participant
  
  (Awaiting moderation)
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