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optimized and the performance of this coating on
bulk TAS sample is demonstrated successfully.
Proper design of a copper fiber holder for
cryogenic temperature application is investigated
and realized. Cryogenic test with gold coated TAS
fibers mounted in this holder has proven that the
TAS fibers successfully survives cool down to 40
K without visible degradation or failure. Five
short wavelength TAS single mode waveguides
with gold absorption coating but without AR
coating are integrated in the fiber holder and
characterised by cross core scan and FFI.
ACKNOWLEDGEMENTS
This project was funded by the European space
Agency under the contract No. 20914/07/NL/CP.
The authors would like to thank the
Optoelectronics Research Centre of University of
Southampton for the modelling of the cladding
mode suppression and Netherlands Institute for
Space research (SRON) for providing their
Cryogenic facility.
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