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Glass fibre optics

VP5.8.7.3
Glass fibre optics
Glass fibre optics

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 This experiment/set up contains dangerous goods.
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Description

Experiment P5.8.7.3 introduces to glass fibre optics. Within this experiment the diode laser itself will be characterised with respect to its output power as function of its temperature and injection current. The spatial intensity distribution is measured by means of the provided rotation stage.
Cutting and preparing the fibre is part of the practical training. The light of the diode laser is coupled into the fibre by means of adjustable microscope objectives. The coupling efficiency is monitored with the photodetector detecting the light coming out at the end of the fibre.
The intensity distribution of the light emerging at the end of the fibre is measured and the numerical aperture determined.
By modulating the diode laser by means of the provided microprocessor controlled device the time of flight inside the fibre will be measured. From the results either the length of the fibre or the speed of light is calculated.

Components of equipment sets

1 4741036 Collimating Optics on Carrier LD
1 474151 Coupling Optics, XY- Adjustment Holder LD
1 474152 Bare Fibre Holder with Translation Stage LD
1 474154 Bare Fibre Holder on Rotation Stage LD
1 4745227 Optical Glass Fibre 1000 m, multimode LD
1 4746420 Optical Fibre Cleaver and Breaker LD
1 4746421 Adjustable Plastic Cover Stripper LD
1 4744025  4  IR converter screen  800 - 1400 nm LD
1 474306 Photodetector signal conditioning box LD
1 474216 Si PIN Photodetector for Swivel Unit, Mounting Plate C25 LD
1 4745464  8  Oscilloscope, Dual Channel, Digital LD
2 50106  4  HF-Cable, BNC-BNC, 1.5 m LD
1 4743021 Controller for Diode Laser LD
1 4741022 Diode Laser Head with Adjustment Holder LD
1 4745442  4  Profile rail 500 mm LD
1 474251  8  Transport and Storage Box #01 LD
1 4747119  4  LIT-print: Glass Fibre Optics LD
1 4745226 * Optical Glass Fibre 1000 m, monomode LD
1 4745295 * Optical Glass Fibre 5000 m, multimode LD
2 4746111 * Laser safety goggles 808 and 1064nm LD

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

Experiment Instructions

PDF (Experiment description) PDF (Experiment description) P5.8.7.3 Glass fibre optics
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Physics
Chemistry
Biology
Technology

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