Title :
Characteristics of linewidth-narrowed distributed Bragg reflector lasers with a fiber external cavity formed with the vertical grating emission
Author :
Cook, Anthony L. ; Hendricks, Herbert D.
Author_Institution :
NASA Langley Res. Center, Hampton, VA, USA
fDate :
3/1/1995 12:00:00 AM
Abstract :
Linewidth reduction has been observed in a distributed Bragg reflector (DBR) laser with a second-order grating when an external cavity is formed with the vertical emission. The external cavity consists of a length of optical fiber which is brought close to the top of the laser. Displayed linewidths as low as 26 kHz have been measured. To the authors´ knowledge, this is the first report of linewidth reduction via vertical emission from a laser diode
Keywords :
distributed Bragg reflector lasers; laser cavity resonators; optical fibres; semiconductor lasers; spectral line breadth; DBR laser; external cavity; fiber external cavity; laser diodes; linewidth reduction; linewidth-narrowed distributed Bragg reflector lasers; linewidths; master oscillator power amplifers; optical fiber; second-order grating; vertical emission; vertical grating emission; Bragg gratings; Diode lasers; Distributed Bragg reflectors; Distributed feedback devices; Fiber gratings; Fiber lasers; Laser feedback; Optical fibers; Optical sensors; Semiconductor lasers;
Journal_Title :
Lightwave Technology, Journal of
