Wavelength meter having single mode fiber optics multiplexed inputs
US5189485A · kind A · utility
12Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1991 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Feb 21, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J9/0246
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wavelength meter having a single mode fiber optics input is disclosed. The single mode fiber enables a plurality of laser beams to be multiplexed to form a multiplexed input to the wavelength meter. The wavelength meter can provide a determination of the wavelength of any one or all of the plurality of laser beams by suitable processing. Another aspect of the present invention is that one of the laser beams could be a known reference laser having a predetermined wavelength. Hence, the improved wavelength meter can provide an on-line calibration capability with the reference laser input as one of the plurality of laser beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.