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FIBER OPTIC TRAINER KITS

 

FIBER OPTIC ANALOG LINK TRAINER ALS-FOC-01

INTRODUCTION

Optical communication has many advantages over the traditional electrical counterparts. It is insensitive to electromagnetic interference, it offers ground and voltage isolation between the transmitter and the receiver, it provides security from tapping and there will be no sparking at the connecting ends.

This trainer uses LEDs in visible range (660 nM) as transmitter, fast PIN-Photodiodes as receiver. A Plastic Optic Fiber (POF) is used as the channel connecting light signal from the transmitter to the receiver. Each of the transmitter and receiver are placed in a PCB mountable plastic housing. A 2.2 mm aperture is provided to hold standard 1000 micron POF. No fiber stripping is required. Microlens is a part of the housing.

SPECIFICATION :

Optical communication has many advantages over the traditional electrical counterparts. It is insensitive to electromagnetic interference, it offers ground and voltage isolation between the transmitter and the receiver, it provides security from tapping and there will be no sparking at the connecting ends.

The trainer consists of

  • Sine and triangular signal source with variable frequency and amplitude.
  • A switch to select sine or triangular signal and connect to the transmitting circuit.
  • A variable POT at the transmitter offers the intensity adjustment.
  • A switch is provided to select the Optical receiver to be connected either to the power measurement circuit or to the signal receive and regeneration circuit.
  • Built in 3 1/2 digit display for measuring optical power in DB.
  • PMMA Fiber patch cords.
  • Circular bends for bending loss measurement.
  • L-bends with scale and mount for numerical aperture measurement.

LIST OF EXPERIMENTS:

  • Study of characteristic of Fiber optic LED and Photo Detector
  • Measurement of numerical aperture
  • Measurement of losses in optical fiber
    1. Propagation loss
    2. Bending loss

 

 

SPECIFICATION :

The trainer consists of

  • Sine, triangular and square signal source.
  • Sine wave signal with variable frequency and amplitude.
  • Pulse width and pulse position modulation and demodulation circuits.
  • Four channel Time Division MUX and DEMUX circuits.
  • PC to PC communication through RS232
  • Optical Transmitter and Receiver
  • PMMA Fiber patch cords.
  • Patch cords for connecting electrical signals.

LIST OF EXPERIMENTS:

  • Pulse Width modulation, optical transmission, Reception and Demodulation
  • Pulse Position modulation, optical transmission, Reception and Demodulation
  • Time Division Multiplexing optical transmission, Reception and Demultiplexing
  • PC to PC communication through PC serial port and Fiber channel.