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2. Getting started

The following is a list of standard items provided with every 

TILBA-R:

List of components

TILBA-R demultiplexer with

Option 1: free space input

Option 2: 10 m of multimode fiber input 

The TILBA-R demultiplexer is shipped from Cailabs ready-to-

use. 

The fibers may become tangled during transport and must be 

very carefully removed from the transport case. 

1. 

First, loosen the demultiplexer from the transport case, 

without removing it. 

2. 

Next, carefully take out the demultiplexer and the fibers at 

the same time. Be careful not to damage the fibers when 

removing the units from the transport case. 

3. 

Then, place the TILBA-R on your optical table or desi-

gnated area. 

4. 

Gently clean the single-mode fiber optical connectors at 

the input and output ports of the units before use. 

Unpacking

Summary of Contents for Tilba R

Page 1: ...MITIGATE TURBULENCE WITHOUT ADAPTIVE OPTICS INSTRUCTION MANUAL 2020 11...

Page 2: ......

Page 3: ...scription Operation instructions Specifications Mechanical drawing Free Space alignment Back to back in a single MUX DEMUX configuration Back to back measurement with a MUX and DEMUX configuration Cro...

Page 4: ...optical fiber are laser based and may be hazardous to your eyes Please follow all the necessary safety precautions Warning All statements regarding technical data in this instruction manual are only a...

Page 5: ...ing transport and must be very carefully removed from the transport case 1 First loosen the demultiplexer from the transport case without removing it 2 Next carefully take out the demultiplexer and th...

Page 6: ...mode fibers to the corresponding LC connector 2 Verify the properties of the TILBA R with the alignment procedure The properties should match the performance report Example of intensity profile of Her...

Page 7: ...7 Mechanical drawing...

Page 8: ...ent of insertion losses and the basic functionality of the multiplexer Depending on the material available possible options are Figure 1 with only 1 lens or Figure 2 with two lenses We recommend optio...

Page 9: ...rapidly becomes very sensitive At the best alignment position insertion losses for the fundamental mode should be close to the value on the performance report x2 If a multi channel power meter is avai...

Page 10: ...coupling efficiency for the full MUX DEMUX pair for channel i is equal to i Pi i Pin i Calculation of crosstalk Method for obtaining normalized crosstalk The transmission matrix obtained by the measur...

Page 11: ...and thereby voids the warranty Troubleshooting The TILBA R is a passive device and rarely constitutes a point of failure If you observe an abnormal amount of loss in the systems clean the LC PC conne...

Page 12: ...38 boulevard Albert 1er 35200 Rennes France www cailabs com contact cailabs com CAILabs CAILABS...

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