Resonating cavity system for broadly tunable multi-wavelength semiconductor lasers
US6687275B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 2003 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | May 14, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/1092
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A resonating cavity system of a tunable multi-wavelength semiconductor laser. The system has a laser, a collimating lens, a grating, a slit plate, and adjustable mirrors. The laser has two ends. The first end is coupled to the cavity, and the second end outputs the laser beam. The grating is located in the lasing path between the first end of the semiconductor laser and the plate, and the plate is located before the adjustable mirrors. Each adjustable mirror is aligned to the corresponding slit of the plate. Lasing paths extend from the first end of the laser, through the grating, the lens, a plurality of the slits of the plate, to the adjustable mirrors. Each mirror can be adjusted independently to ensure each beam is reflected accurately back to each resonating path. Thereby, a feature of equal lasing gains of all the resonating paths is guaranteed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.