Title :
Theoretical investigation of the second-order harmonic distortion in the AM response of 1.55 μm F-P and DFB lasers
Author :
Morthier, Geert ; Libbrecht, Frank ; David, Klaus ; Vankwikelberge, Patrick ; Baets, Roel G.
Author_Institution :
Lab. of Electromagn. & Acoust., Gent Univ., Belgium
fDate :
8/1/1991 12:00:00 AM
Abstract :
Numerical calculations of the second-order harmonic distortion in the amplitude modulation-response of Fabry-Perot, and distributed feedback (DFB) lasers are presented, and the influence of several nonlinearities, such as longitudinal spatial hole burning, gain suppression, and relaxation oscillations are considered. This analysis is valid for modulation frequencies ranging from a few megahertz to well beyond the resonance frequency of the relaxation oscillation. The distortion of Fabry-Perot lasers for which the effects of spontaneous emission and gain suppression can be clearly illustrated is investigated. The distortion of DFB lasers where the emphasis is on the influence of spatial hole burning and its combination with other nonlinearities is discussed. Various effects are discussed
Keywords :
amplitude modulation; distributed feedback lasers; laser theory; optical hole burning; optical modulation; semiconductor junction lasers; 1.55 micron; AM response; DFB lasers; FP lasers; Fabry-Perot lasers; amplitude modulation-response; diode lasers; distributed feedback; gain suppression; laser modulation; longitudinal spatial hole burning; modulation frequencies; relaxation oscillations; resonance frequency; second-order harmonic distortion; spontaneous emission; Amplitude modulation; Distributed feedback devices; Fabry-Perot; Frequency modulation; Harmonic distortion; Laser feedback; Laser noise; Laser theory; Resonance; Resonant frequency;
Journal_Title :
Quantum Electronics, IEEE Journal of
