Interferometry assembly having optical paths through different materials

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United States of America Patent

PATENT NO 11835337
SERIAL NO

17646080

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There is described an interferometer for use in an optical locker. The interferometer comprises at least two transparent materials having different thermal path length sensitivities. The interferometer is configured such that an input beam is split by the interferometer into first and second intermediate beams, which recombine to form an output beam, the first and second intermediate beams travelling along respective first and second intermediate beam paths which do not overlap. At least one of the intermediate beam paths passes through at least two of the transparent materials. A length of each intermediate beam path which passes through each transparent material is selected such that an optical path difference between the first and second intermediate beam path is substantially independent of temperature.

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Patent Owner(s)

  • LUMENTUM TECHNOLOGY UK LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Janssen, Adrian Perrin Exeter, GB 20 61

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