Title :
Single-mode stability of DFB lasers with longitudinal Bragg detuning
Author :
Olesen, Henning ; Salzman, Joseph ; Jonsson, Bjöm ; Tromborg, Bjarne
Author_Institution :
Tele Danmark Res., Horsholm, Denmark
fDate :
5/1/1995 12:00:00 AM
Abstract :
Threshold and above-threshold behavior of laser cavities with various pitch-modulated feedback gratings is analyzed. The optimum design for high power operation with large side mode suppression is shown to deviate considerably from the distributed /spl lambda//4-shift design.<>
Keywords :
diffraction gratings; distributed feedback lasers; laser cavity resonators; laser modes; laser stability; laser theory; optical design techniques; optical modulation; optimisation; semiconductor lasers; DFB lasers; above-threshold behavior; distributed /spl lambda//4-shift design; high power operation; large side mode suppression; laser cavities; longitudinal Bragg detuning; optimum design; pitch-modulated feedback gratings; single-mode stability; Bragg gratings; Distributed feedback devices; Filters; Laser feedback; Laser modes; Laser noise; Laser stability; Optical design; Power generation; Refractive index;
Journal_Title :
Photonics Technology Letters, IEEE
