Available Photonics Experiments:

P5877 Fibre optics workshop
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  • Preparation of fibres
  • Fibre stripping
  • Fibre breaking
  • Fusion splicing
  • Fibre connectoring
  • Fibre polishing
  • Fibre inspection microscope
  • Fibre handling and connectorizing
OX The main goal of this workshop is the connectoring of optical glass fibres with ST connectors. Although a variety of other fibre connectors exist the process of connectoring however remains the same.
Another major technology is the welded connection of bare fibres by means of the fusion splicing technology.
Fibre stripper (1)
Melting oven (6)
Cooling rack (9)
Connectoring optical fibre
It starts with the preparation of the fibre by stripping the plastic cladding from the fibre for at least 3-4 cm. Within this workshop are so called hot melt connectors (8) are used. The connectors are already filled with a hot melt adhesive. As the name suggests, these adhesives melt and flow when heated to wet the substrates and bond quickly upon cooling. A connector is placed by means of a special holder into the oven (6) and remains there for about 1 minute. After that the fibre (5) is inserted into the hot connector until 1 to 2 cm of fibre protruding the connector. The hot connector with the fibre is placed into the cooling rack (9) for a couple of minutes until it cooled down and the adhesive is solidified. The protruding fibre is scratched by means of the provided cleaver and subsequently broken.
Fibre connector polishing (7)
Connector inspection (3)
Polishing and inspection of the fibre connector
The so prepared connector is polished with the polishing machine (7) . For this purpose the fibre is fixed to the swivel arm of the unit. A polishing film (2) is placed onto the rotating disk. After one minute of polishing the fibre is ready for inspection using the handheld fibre inspection microscope (3).
Precision fibre cleaver and breaker (12)
Fibre fusion splicer (11)
Fusion splicing of optical fibres
Another important technology is the connection of two bare fibre ends. It is important that the splicing should affect the optical transmission to lowest possible degree. Fusion splicing is a well established technology for connecting bare fibres.
Before the fusion takes place the plastic cover of the fibre ends must be removed and precisely perpendicular cut. This is done by a precision fibre cleaving and breaking tool (12). The so prepared fibre ends are placed into the fusion splicer where the fibre faces are automatically orientated to each other. The fibre ends are moved to close contact of the faces and the fusion which is a kind of welding is started. Based on the resulting geometry of the “welded” fibre ends the unit calculates already the transmission losses.
Actually before the splicing process a splicing tube and a hot shrinking protective plastic cover is attached to one side. After the fusion process the splice is covered and protected by this tube.
  • P5877 Fibre optics workshop consisting of:
12E-02501Adjustable plastic cover stripper 103-S
22E-03301Polishing film 2 �m / set of 50
32E-03501Fibre inspection mircroscope, 200 x
42E-10801Tungsten Carbide fiber cleaver
54G-01601Multimode optical glass fibre 1000 m, 50/250 �m on a bobin
6TP-03301Hotmelt oven
7TP-03401HotMelt polishing unit
8TP-03501Hotmelt ST connector, set of 60
9TP-03601Cooling rack
 2E-03401Splicing tubes set of 250
 TP-03001Fusion splicer for SM and MM, model FSM-16A
 TP-03101High performance fibre cleaver and breaker