Optical frequency synthesizer/sweeper
US4893353A · kind A · utility
33Cited by
13References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1986 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | Dec 16, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1303
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical frequency synthesizer and/or sweeper, whereby a coherent optical output light is obtained by using a wavelength stabilized laser and an optical phase locked loop wherein the frequency of the output has the characteristics of high accuracy, high stability and narrow spectral line width. The optical phase locked loop comprises a tunable laser, an optical frequency multiplier, an optical frequency shifter and an optical heterodyne detector, wherein the optical phase locked loop is capable of precisely outputting an arbitrary wavelength by feeding back an output optical frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.