Improved rate equations for external cavity semiconductor lasers

Author

Rong-qing, Hui ; Shang-ping, Tao

Author_Institution

Optical Commun. Lab., Beijing Univ. of Post & Telecommun., China

Volume

25

Issue

6

fYear

1989

fDate

6/1/1989 12:00:00 AM

Firstpage

1580

Lastpage

1584

Abstract

A set of improved Langevin rate equations for external-cavity semiconductor lasers which can be used to solve transient as well as steady-state problems is derived. A simple relationship among chirp reduction, line narrowing and dynamic stability is given. An experiment on an external-coupled-cavity semiconductor laser consisting of a 1.3-μm buried-heterostructure laser diode with an antireflection (AR)-coated facet and a 4-mm GRIN rod is reported. Because of its strong optical feedback, it provides a stable single mode, which is not sensitive to the environmental perturbations. This agrees with the theoretical results. No mode jumping occurred during 12 h continuous observation

Keywords

antireflection coatings; feedback; gradient index optics; laser cavity resonators; laser modes; laser theory; laser transitions; semiconductor junction lasers; spectral line breadth; GRIN rod; antireflection-coated facet; buried-heterostructure laser diode; chirp reduction; dynamic stability; environmental perturbations; external cavity semiconductor lasers; external-coupled-cavity semiconductor laser; improved Langevin rate equations; line narrowing; optical feedback; stable single mode; Chirp; Diode lasers; Equations; Laser feedback; Laser modes; Laser theory; Optical feedback; Semiconductor lasers; Stability; Steady-state;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.29296

Filename

29296