Title :
Fundamental and higher order mode thresholds of DFB fiber lasers
Author :
Løvseth, Sigurd Weidemann ; Rønnekleiv, Erlend
Author_Institution :
Optoplan A/S, Trondheim, Norway
fDate :
3/1/2002 12:00:00 AM
Abstract :
Higher order modes are detrimental for distributed feedback (DFB) fiber lasers. The thresholds of these modes are calculated as functions of gain, loss, and various types of grating defects, like harmonic, linear, quadratic, and random chirp, and discrete phase errors. The higher order modes are particularly enhanced by high gain, quadratic chirp, and discrete phase errors close to the center of the grating
Keywords :
Bragg gratings; chirp modulation; distributed feedback lasers; errors; fibre lasers; laser modes; optical fibre losses; optical modulation; DFB fiber lasers; DFB lasers; discrete phase errors; grating defects; high gain; higher order mode thresholds; higher order modes; quadratic chirp; random chirp; Bragg gratings; Distributed feedback devices; Fiber lasers; Frequency; Laser feedback; Laser modes; Laser stability; Optical feedback; Optical fiber polarization; Optical fibers;
Journal_Title :
Lightwave Technology, Journal of
