| |
|
  Home
|
FCL: Advance Fiber Optic Communication Lab
 |
Advance Fiber Optics Communication Lab covers
the fundamentals of fiber optics including properties
of transmitter and receiver, characteristics of fiber
optic cable, LED’s and Detectors, various types of
Modulation/Demodulation and Multiplexing/
Demultiplexing techniques and PC to PC
Communication by serial method. Ample number of
experiments can be performed with this lab by
referring to the exhaustive manual provided with the
kit. This manual contains excellent documentation on
each and every experiment, data sheets of optical
components used and circuit diagram of the
complete kit.
The lab consists of four separate Kits. Two of these Kits
are used to perform analog communication
experiments and other two kits are used to perform
digital communication experiments using optical
fiber. Separate power supplies are provided so that
simultaneously three batches of students can perform
experiments on different sets.
|
FEATURES:
• 4 separate modules to perform experiments independently.
• Separate Function Generator modules for every experimental module.
• Fiber Optic Analog and Digital Link for visible and infra-red range.
• Switch Faults on every board.
• PC to PC communication Technique using RS-232 Interface.
• Circuit area and work area separated by different colour coding on every module.
• Circuit area should be protected by removable transparent acrylic sheet.
• Separate external power supply should be provided for each experimental module.
• Student’s manual and circuit description manual should be provided for each experimental module.
• Various test points should be provided for every functional block.
• Each module should be based on plastic fiber .
• All modules should be packed in rugged wooded casing with removable top.
LIST OF EXPERIMENTS:
• Initial fiber end preparation (Connectorization).
• Transmission through a gap between fiber.
• Fiber optic transmission sensors.
• Fiber optic reflection sensors.
• Measurement of Numerical Aperture.
• Study of losses in optical fiber :
• Measurement of propagation loss.
• Measurement of bending loss.
• Measurement of connector loss.
• Study effect of Lateral & Longitudinal Displacement.
• Setting up fiber optic analog link.
• Study of Pulse Amplitude Modulation (PAM) and demodulation.
• Study of 4 Channel Time Division Multiplexing and Demultiplexing.
• Study of Amplitude Modulation and demodulation.
• Measurement of length of fiber cable.
• To study effect of EMI interference on Copper medium and optical fiber medium.
• Study of characteristics of fiber optic LED’s and Detectors.
• Forming simple fiber optic voice link using MIC & Speaker.
• Forming simple fiber optic analog link using 660 nm LED, fiber cable and PIN photo detector.
• Forming simple fiber optic digital link using 660 nm LED, fiber cable and TTL logic output photo detector.
• Study of Pulse Width Modulation(PWM), its transmission over fiber link and Demodulation to receiver original signal.
• Study of Pulse Position Modulation (PPM) & Demodulation.
• Study of Frequency Division Multiplexing & Demultiplexing.
• Forming PC to PC communication link using optical fiber link and RS-232 Interface.
• Time Division Multiplexing using 8 data channels.
• Framing in Time Division Multiplexing.
• Study of Marker in Time Division Multiplexing.
• Study of Manchester coding and decoding.
• Study of PCM voice coding and frequency response of a CODEC chip.
• Measurement of Bit Error Rate.
• Study of Eye Pattern.
• Switch Faults.
|
|
|
|
|