Intensity noise of laser diodes with optical feedback

Author

Kitaoka, Yasuo ; Sato, Hisanao ; Mizuuchi, Kiminori ; Yamamoto, Kazuhisa ; Kato, Makoto

Author_Institution

Mater. & Devices Lab., Matsushita Electr. Ind. Co. Ltd., Osaka, Japan

Volume

32

Issue

5

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

822

Lastpage

828

Abstract

We examine the intensity noise of laser diodes with optical feedback for several feedback conditions. Three stable feedback conditions have been observed, which are defined as follows: an external mirror length shorter than 15 mm, small and large ratios of mirror to laser-front facet reflectivities. Reduction of the external-cavity length, notably to less than 15 mm, stabilized the laser diode and resulted in low intensity noise. A new theoretical treatment of optical feedback is proposed, wherein the feedback field is taken into account in the boundary condition at the feedback coupling laser facet. Theoretical derivations of the intensity noise of external-cavity feedback laser diodes are in good agreement with measured results

Keywords

fluctuations; laser cavity resonators; laser feedback; laser mirrors; laser noise; laser stability; reflectivity; semiconductor lasers; 15 mm; boundary condition; external mirror length; external-cavity feedback laser diodes; external-cavity length; feedback conditions; feedback coupling laser facet; feedback field; intensity noise; laser diode feedback; laser diode noise; laser-front facet reflectivities; low intensity noise; mirror; optical feedback; stable feedback conditions; Diode lasers; Laser feedback; Laser noise; Laser stability; Laser theory; Mirrors; Noise reduction; Optical feedback; Optical noise; Reflectivity;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.493006

Filename

493006