NDLI: Low threshold membrane BH-DFB laser arrays for 1490-1565nm wavelength range

Content Provider	IEEE Xplore Digital Library
Author	Okamoto, T. Onodera, Y. Yamazaki, T. Tamura, S. Arai, S.
Copyright Year	2003
Description	Author affiliation: Res. Center for Quantum Effect Electron., Tokyo Inst. of Technol., Japan (Okamoto, T.; Onodera, Y.; Yamazaki, T.; Tamura, S.; Arai, S.)
Abstract	High optical confinement and high index coupling in 1.55 /spl mu/m-wavelength GaInAsP/InP membrane buried heterostructure distributed feedback (BH-DFB) lasers consisting of deeply etched single-quantum-well wire-like active regions were demonstrated under room-temperature (RT) continuous-wave (CW) optical pumping. We have realized membrane BH-DFB laser arrays by arranging the laser cavities (10 /spl mu/m spaced 15 elements with 5 different grating periods). A total wavelength span of 72 nm was achieved with a small lasing wavelength fluctuation of up to /spl plusmn/1.2 nm at RT-CW condition under optical pumping. From this value, membrane thickness fluctuation was estimated to be /spl plusmn/0.4 nm. Threshold pump power of 3.4 mW and SMSR of 45 dB were achieved in a typical device.
Starting Page	558
Ending Page	561
File Size	311228
Page Count	4
File Format	PDF
ISBN	0780377044
DOI	10.1109/ICIPRM.2003.1205441
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-05-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Biomembranes Optical arrays Distributed feedback devices Laser feedback Pump lasers Optical pumping Fluctuations Optical feedback Optical coupling Indium phosphide
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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