Fiber Laser Transmission Kit

This "Sound Optical Transmission Kit" is a complete information transmission system.

Demonstrative and easy to implement, it makes the transmission of sound through light tangible.

The transmission of a signal through optical means is ensured by a modulable laser, adjustable in intensity and focus. The practical purpose of the experiment involves measuring bandwidth, numerical aperture, permissible amplitude...

Three modes of use are possible: in air, through optical fiber without and with connectors.

Experiments:
- Numerical aperture
- Transmission: bandwidth, modulated signal, and attenuation
- Spectral attenuation of a fiber
- Wavelength multiplexing

The concepts of free-space propagation and guided propagation are addressed through the use or non-use of the supplied 2 m optical fiber.

For further exploration, signals can be processed using a function generator and an oscilloscope.

Tip: the adjustable/modulable laser provided in this kit can be used for all manipulations requiring a laser, especially for diffraction and interference.

Composition:
- 1 adjustable red laser (ref. 201004)
- 1 plastic optical fiber 2 m with SMA connector (ref. 202729)
- 1 simple SMA optical fiber holder (ref. 204727)
- 1 collimated SMA optical fiber holder (ref.202733)
- 1 amplified phototransistor on rod
- Provided connectors (Jack; adapters to 4 mm sockets for oscilloscope, function generator)
Implementation manual