Home Laser Telecommunication LT-0500 Fibre Video & Audio Transmission


  • Optical Glass Fibre
  • Fibre Transmitter
  • Fibre Receiver
  • CCD Camera
  • Audio Source
  • Signal Transfer via 1+2 km Optical Fibre
  • Optical Signal Detection
  • Photodetector
  • Fibre Attenuation

Basic experiment

Intended institutions and users:

Physics Laboratory

Engineering department

Electronic department

Biophotonics department

Physics education in Medicine



How it works ...


This experiment comprises two drums of multimode fibre with one 1000 m and two 2000 m long multimode fibre. With this set data transmission segments can be realized with a length of 1000 m, 2000 m and 3000. The fibre drums are equipped with ST fibre jacks and by means of the provided fibre patch cable they can be interconnected. As signal sources  a colour CCD Video camera and a CD - Player as audio source are used. They are connected to the fibre transmitter which converts the electronic signals into digital optical signals which are guided via the optical fibre to the optical receiver where the signals converted back to electronic audio as well as video signal. These signals are connected to a regular TV to watch the transmitted video as well as listen to the simultaneously transmitted audio. The optical signals having a wavelength of 1.3 µm and are detected in addition by the optional fast InGaAs photodetector. The amplitude can be shown on an oscilloscope and the amplitude measured for the 3 different length of the data segment. For each measurement the input and output power is measured and from this relation the fibre attenuation calculated.



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LT-0500 Fibre Video & Audio Transmission

ALKAAD Photonics