Multichannel optical power meter using a synchronous scanner
US9436002B2 · kind B2 · utility
0Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2013 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | May 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical scanning systems and methods of controlling a resonant scanning mirror are disclosed. A rotatable mirror may oscillate about a rotation axis in response to a drive signal. A reference source may provide a reference light beam directed to the rotatable mirror. A reference detector may be disposed to receive the reference light beam reflected from the rotatable mirror twice during each oscillation of the rotatable mirror. A controller may set both an amplitude and a frequency of the drive signal based on an output of the reference detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.