Longitudinal mode stabilized laser
US4573163A · kind A · utility
15Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1982 |
| Grant date | Feb 25, 1986 |
| Priority date | — |
| Expiry date | Sep 13, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Stabilized, single-mode operation of semiconductor lasers is obtained by introducing longitudinally spaced variations in the effective refractive index along the active waveguiding medium, where said index changes have a spatial period corresponding to many half-wavelengths of the guided optic wave. Because the spatial period of the variations is relatively long, as opposed to half an optical wavelength used in the prior art distributed feedback lasers, a laser in accordance with the invention is much easier to fabricate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.