Polarization-insensitive laser stabilization using multiple waveguide gratings
US6330257A · kind A · utility
4Cited by
14References
57Claims
0Family size
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Key dates
| Filing date | Aug 4, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Aug 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0656
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The effectiveness of reflected light to stabilize the operational characteristics of a semiconductor diode laser varies with the polarization orientation of the reflected light. Stabilization failure can occur if the polarization orientation of the reflected light is orthogonal to the polarization of the light emitted by the laser source. The use of multiple reflectors can reduce the probability of stabilization failure by arranging the reflectors to return to the laser source portions of light having polarization orientations that are statistically independent with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.