Wavelength tunable laser device
US7508849B2 · kind B2 · utility
6Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2004 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/142
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor optical amplifier, an acousto-optic tunable filter, a phase shifter, a lens, and an internal etalon are arranged in a resonator. Outside the resonator, two lenses, two beam splitters, two photo-detectors, and an external etalon are arranged. The internal etalon is a quartz etalon and the external etalon is a crystal etalon. Therefore, the rate of change in transmission peak wavelength of the internal etalon to a temperature change is greater than that of the external etalon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.