DocumentCode
1452843
Title
Experimental investigation of thermal crosstalk in a distributed feedback laser array
Author
Sato, Kenji ; Murakami, Makoto
Author_Institution
NTT Opto-Electron. Lab., Kanagawa, Japan
Volume
3
Issue
6
fYear
1991
fDate
6/1/1991 12:00:00 AM
Firstpage
501
Lastpage
503
Abstract
Thermal crosstalk between lasers in a distributed feedback laser array has been investigated by measuring the oscillating-wavelength shift. Between closely situated lasers, thermal crosstalk due to lateral heat spreading decreases proportionally to the inverse of the laser distance. Thermal crosstalk due to heating in the heat sink and stem becomes dominant between relatively distant ( approximately 300 mu m) lasers. A diamond heat sink reduces thermal crosstalk to about 1/3 compared to a silicon heat sink.<>
Keywords
crosstalk; distributed feedback lasers; semiconductor laser arrays; thermo-optical effects; C; Si heat sink; closely situated lasers; diamond heat sink; distributed feedback laser array; lateral heat spreading; oscillating-wavelength shift; stem; thermal crosstalk; Crosstalk; Distributed feedback devices; Heat sinks; Laser feedback; Optical arrays; Power lasers; Semiconductor laser arrays; Silicon; Thermal conductivity; Wavelength measurement;
fLanguage
English
Journal_Title
Photonics Technology Letters, IEEE
Publisher
ieee
ISSN
1041-1135
Type
jour
DOI
10.1109/68.91014
Filename
91014
Link To Document