Analog Optical Fiber Communication



  • Voice transmission through optical fiber cable.
  • To study transmitter circuit & calculate its output power.
  • To study receiver circuit & calculate its input power.
  • To study the attenuation of signal between transmitter & receiver end.
  • Measurement of numerical aperture.


  • In built IC based Fixed DC Regulated Power Supply +12VDC/100mA.
  • On board 1KHz sine wave oscillator provided.
  • Input amplifier stage using TL074.
  • Optical transmitter
  • Optical Receiver
  • Low Pass filter given on board.
  • AC amplifier given on board.
  • Power Amplifier given on board with volume control.
  • Circuit diagram is printed on glass epoxy PCB & different combination of resistance.
  • Test point are brought out on front panel .


  • Adequate no of 4mm Patch Cords required for the Experiments.
  • Microphone for Voice Transmission.
  • Speaker for Voice Receiver End.
  • Optical Fiber Cable 1 Meter Length.