A fiber-fed laser interferometer for optical metrology at cryogenic temperatures

David Naylor; Ian Veenendaal; Brad Gom; Adam Christiansen

doi:10.1117/12.2287466

22 February 2018 A fiber-fed laser interferometer for optical metrology at cryogenic temperatures

David Naylor, Ian Veenendaal, Brad Gom, Adam Christiansen

Proceedings Volume 10539, Photonic Instrumentation Engineering V; 105390T (2018) https://doi.org/10.1117/12.2287466
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

Nature is such that observations at far-infrared wavelengths are optimal for exploring both the nearby and distant Universe. The minute amount of energy carried by far-infrared photons, however, requires extremely sensitive instrumentation for their detection. Moreover, the instrumentation itself must be cooled to <4 K to avoid an unwanted photon noise component from self-emission, and often requires precision metrology at these temperatures. A variety of cryogenic metrology techniques have been used successfully on previous space astronomy missions, each having its own limitations. In this paper we present a fiber-based laser metrology system, designed for optical position metrology at cryogenic temperatures.

Citation Download Citation

David Naylor, Ian Veenendaal, Brad Gom, and Adam Christiansen "A fiber-fed laser interferometer for optical metrology at cryogenic temperatures", Proc. SPIE 10539, Photonic Instrumentation Engineering V, 105390T (22 February 2018); https://doi.org/10.1117/12.2287466

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