Glass that has minimum reflection and absorption at 1550nm

[jeic]

I am building an enclosure for my laser that emits at 1550nm. I need to integrate a window for the laser light to pass through. Anybody have any recommendations on what kind of glass would work best so that the optical losses are kept at a minimum? Ideally, it would be commercially available and not be too expensive. Thanks.

 

[Bobbywhy]

jeic, You may look into using chalcogenide glass. It is known to pass radiation at 1550 nm with little transmission loss. You also might contact a specialty optical glass manufacturer. They typically provide technical assistance free of charge:

www.hoyaoptics.com/pdf/OpticalGlass.pdf
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