Sagnac fourier transform spectrometer having improved resolution
US8736844B2 · kind B2 · utility
1Cited by
11References
29Claims
0Family size
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Key dates
| Filing date | Jun 6, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Dec 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/189
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Sagnac interferometer can include a beamsplitter arranged to receive an input beam of light of a design wavelength, to split the input beam of light into first and second beams that counter propagate around an optical path, and to recombine the first and second beams into an output beam of light. The optical path can include at least one diffraction grating that is arranged to satisfy an effective Littrow geometry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.