Title :
The static and dynamic characteristics of single and multiple phase-shifted DFB laser structures
Author :
Whiteaway, J.E.A. ; Garrett, B. ; Thompson, G.H.B. ; Collar, A.J. ; Armistead, C.J. ; Fice, M.J.
Author_Institution :
BNR Europe Ltd., Harlow, UK
fDate :
5/1/1992 12:00:00 AM
Abstract :
The influence of longitudinal mode spatial hole burning (LMSHB) on the performance of distributed feedback (DFB) laser structures is examined in detail. A comprehensive model has been used to interpret the experimental results and to construct a theoretical framework that was utilized to develop more advanced device designs. An increasing side mode intensity with output power, movement of the lasing mode relative to the stopband, and curvature of the light-current characteristic at low power can all be manifestations of the influence of LMSHB on the static device performance. The dynamic behavior can also be affected, with extended wavelength chirp and amplitude patterning effects on the timescale of the effective carrier recombination time being particularly important
Keywords :
distributed feedback lasers; optical hole burning; amplitude patterning effects; comprehensive model; curvature; device designs; dynamic characteristics; effective carrier recombination time; extended wavelength chirp; lasing mode; light-current characteristic; longitudinal mode spatial hole burning; multiple phase shifted distributed feedback laser structures; output power; side mode intensity; static device performance; stopband; theoretical framework; timescale; Charge carrier density; Chirp; Europe; Fiber lasers; Laser modes; Laser theory; Optical design; Optical refraction; Power generation; Signal analysis;
Journal_Title :
Quantum Electronics, IEEE Journal of
