Title :
Modeling the static and dynamic behavior of quarter-wave-shifted DFB lasers
Author :
Lowery, Arthur J. ; Keating, Adrian ; Murtonen, Casper N.
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
fDate :
9/1/1992 12:00:00 AM
Abstract :
High-coupling (grating coupling constant=3.0) phase-shifted distributed-feedback (DFB) lasers are studied using a transmission-line laser model (TTLM) which includes spatial hole burning (SHB), the material gain spectrum, refractive index dependence on carrier concentration, and random spontaneous emission. Good agreement for CW spectra is shown with other models and experimental results. Dynamic simulation of laser transients shows SHB-induced deterministic mode hopping and chirping at moderate output powers. The effects of mode hopping and chirping on system performance are studied using a laser model combined with a fiber model
Keywords :
carrier density; distributed feedback lasers; laser modes; laser theory; optical hole burning; refractive index; semiconductor device models; semiconductor junction lasers; CW spectra; carrier concentration; chirping; deterministic mode hopping; dynamic behavior; dynamic simulation; fiber model; high coupling phase shifted lasers; laser model; laser transients; material gain spectrum; quarter-wave-shifted DFB lasers; random spontaneous emission; refractive index dependence; semiconductor laser; spatial hole burning; static behaviour; transmission-line laser model; Chirp; Fiber lasers; Gratings; Laser modes; Optical coupling; Optical materials; Power system modeling; Refractive index; Spontaneous emission; Transmission lines;
Journal_Title :
Quantum Electronics, IEEE Journal of
