Single-chip optical coherence tomography device
US10907951B2 · kind B2 · utility
9Cited by
2References
20Claims
0Family size
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Inventor
Key dates
| Filing date | Sep 26, 2017 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Oct 17, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2290/55
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A high-performance single-chip, integrated-optics-based OCT system is disclosed, where the length of the reference arm is digitally variable. The reference arm includes a plurality of switch stages comprising a 2×2 tunable wavelength-independent waveguide switch that can direct an input light signal onto either of two different-length output waveguides. In some embodiments, the directional couplers are thermo-optic based. Some embodiments include a solid-state scanning system for scanning a sample signal along a line of object points on the sample under test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.