NDLI: 1.3-<formula formulatype=inline> <tex Notation=TeX>$mu$</tex></formula>m AlGaInAs Multiple-Quantum-Well Semi-insulating Buried-Heterostructure Distributed-Feedback Lasers for High-Speed Direct Modulation

Content Provider	IEEE Xplore Digital Library
Author	Otsubo, K. Matsuda, M. Takada, K. Okumura, S. Ekawa, M. Tanaka, H. Ide, S. Mori, K. Yamamoto, T.
Copyright Year	1995
Abstract	This paper describes 1.3-mum AlGaInAs multiple-quantum-well semi-insulating buried-heterostructure distributed-feedback lasers for high-speed direct modulation. Combination of large differential gain AlGaInAs quantum wells and semi-insulating buried-heterostructure for reduction of active region achieved 25 and 40 Gb/s direct modulation with the device having the cavity length of 150 mum. The device whose Bragg wavelength is longer than gain peak wavelength showed 25 Gb/s direct modulation characteristics with superior temperature characteristics. The relaxation oscillation frequency of this device was 15 GHz and higher up to 70degC. Clear eye-opening was observed and single-mode fiber transmission experiments showed low power penalty up to 70degC. With the device of negative detuning with larger differential gain, we achieved 40 Gb/s direct modulation. This device showed high relaxation oscillation frequency and slope of 20.5 GHz and 3.2 GHz/mA^1/2, respectively. The 40 Gb/s eye opened clearly at 25degC and eye-opening was observed up to 50degC.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	687
Ending Page	693
Page Count	7
File Size	546692
File Format	PDF
ISSN	1077260X
Volume Number	15
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Semiconductor lasers Laser feedback Optical transmitters Quantum well lasers Frequency Laboratories Optical modulation Energy consumption Distributed feedback devices Waveguide lasers buried heterostructure AlGaInAs distributed-feedback (DFB) lasers quantum-well lasers semiconductor lasers semi-insulating
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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