Laser Fiber Optics Trainer Model TCM 008-03

An Optical Fibre is a glass or plastic fibre designed to guide light along its length. Fibre Optics is the overlap of applied science and engineering concerned with the design and application of optical fibres. Optical fibres are widely used in fibre-optic communication, which permits transmission over longer distances and at higher data rates than other forms of communications. Fibres are used instead of metal wires because signals travel along them with less loss, and they are immune to electromagnetic interference. Optical fibres are also used to form sensors, and in a variety of other applications.


With the help Sci-tech Fibre Optic Trainer Kits the students can learn both Analog and Digital experiments. Fibre Optic kits are accompanied with necessary signal generators on board thereby reducing the cost of external Function Generator. Large number of experiments can be performed using the exhaustive manuals provided with the kits. Test Points to analyze different signals are provided. Attractive enclosure with built-in power supply accompanies the kits.

Item Description

– Characterization of a Laser Diode
– Characterization of a Laser Diode (LD)
– Optical Power Output vs. LD Forward Current (Threshold Current)
– Monitor Photodiode Current vs. Optical Power Output
– Study of ACC Mode of Operation
– Study of APC Mode of Operation

– Design and Evaluation of an LD Analog Intensity Modulation (IM) system
– Vo vs. Vin at Specified Optical Carrier Power Levels, Po
– Determination of Vin (max) at Specified Po for Distortion free Vo
– Comparison of Automatic Current Control (ACC) and Automatic Power Control (APC) IM Systems
– Design and Evaluation of an LD Digital Transmission System
– Transmission of Laser through an Optical Fiber
– Study with Step-Index Multimode Plastic Fiber Patch cord
– Study with Graded -Index, Multimode Glass Fiber Patch cord
– Study with a Mechanical Splice Connecting the Above Two Patch cords
– FO Numerical Aperture Measurement
– NA of PMMA Fiber
– NA of Glass Fiber
– Setting up Fiber Optic Digital Link.
– Forming PC to PC Communication Link using Optical PMMA & RS-232 Interface

Technical Specifications

Transmitter : One Laser Diode having peak wave length of emission 660nm.
Receiver : One Photo Detector.
Drivers : Analog & Digital
AC Amplifiers : 1 No.
Filters : 1 No 4th order Butterworth 3.4 KHz cut-off freq.
Functional Generator : 1Hz. To 10 KHz sine wave (amplitude adjustable)
1Hz. To 10 KHz square wave (TTL)
Serial PC to PC link : 9 Pin D-type RS232C Tx. and Rx. link
Cable Type : PMMA Plastic Fiber & GI/MM Glass Fiber
Fiber Length : 2 m.
Power Supply : Built in DC power supply, 230V + 10%, 50 Hz.
Interconnections : 2 mm Banana Sockets.
Accessories Included : Numerical Aperture Measurement Jig, Mandrel, and Manual & Set of patch cords.