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

Volume

26

Issue

6

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

998

Lastpage

1004

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;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.108095

Filename

108095