Linear filter based wavelength locking optical sub-assembly and associated methods
US6864980B2 · kind B2 · utility
1Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Oct 7, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/3095
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wavelength detector includes a beam splitter block that taps off two spatially separated beams and a linear filter in an optical path of one of the two beams. The linear filter may be provided on the beam splitter block. The linear filter may be a notch anti-reflective filter in the optical path of the application beam. One or both of the beams may be focused on to their respective detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.