The phase of optical feedback into a semiconductor laser was stabilized to maintain a minimum linewidth of 2 MHz. The scheme makes use of the linewidth information provided by a 1-MHz width external resonator. A further reduction in the laser linewidth to 300 kHz can be achieved and stabilized by using an external resonator with a narrower width.
|Original language||English (US)|
|Number of pages||4|
|Journal||Journal of Lightwave Technology|
|State||Published - Mar 1986|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics