Title :
Measurements and modeling of the harmonic distortion in InGaAsP distributed feedback lasers
Author :
Lin, Mou-Shiung ; Wang, Shuenn-Yi J. ; Dutta, Niloy K.
Author_Institution :
AT&T Bell Lab., Murray Hill, NJ, USA
fDate :
6/1/1990 12:00:00 AM
Abstract :
Measurements of the second harmonic distortion in 1.3 μm InGaAsP distributed feedback lasers are reported. At low modulation frequencies (~50 MHz), the second harmonic distortion exhibits a minimum at a certain bias current. The minimum, in general, is not observed at high modulation frequencies (~1 GHz). A model of the harmonic distortion, based on the equivalent electrical circuit of the laser, is presented to explain the observed behavior. The spatial hole burning effect in the active region introduces additional nonlinearity, its effects can be significant compared to that of the leakage path
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; gallium compounds; indium compounds; laser theory; laser variables measurement; optical harmonic generation; optical hole burning; semiconductor junction lasers; 1 GHz; 1.3 micron; 50 MHz; InGaAsP distributed feedback lasers; active region; bias current; equivalent electrical circuit; harmonic distortion; laser harmonic distortions measurement; laser models; leakage path; low modulation frequencies; second harmonic distortion; spatial hole burning effect; Current measurement; Distortion measurement; Distributed feedback devices; Frequency measurement; Frequency modulation; Harmonic distortion; Laser feedback; Laser modes; Laser noise; Laser radar;
Journal_Title :
Quantum Electronics, IEEE Journal of
