InGaAsP closely spaced dual wavelength laser
作者:
N. K. Dutta,
T. Cella,
J. L. Zilko,
D. A. Ackerman,
A. B. Piccirilli,
L. I. Greene,
期刊:
Applied Physics Letters
(AIP Available online 1986)
卷期:
Volume 48,
issue 25
页码: 1725-1726
ISSN:0003-6951
年代: 1986
DOI:10.1063/1.96815
出版商: AIP
数据来源: AIP
摘要:
The fabrication and performance characteristics of an independently controllable closely spaced dual wavelength laser structure are described. The laser structure utilizes semi‐insulating (Fe‐doped InP) layers both for confinement of the current to the active regions and for separation of the active regions of the two lasers. Both lasers emit in single frequencies near 1.55 &mgr;m by virtue of frequency selective feedback provided by a second order grating. The light coupled into a single mode fiber from both lasers is about 5 dB smaller than that for optimum coupling arrangement of each laser. Dual wavelength laser structures of this type are useful for wavelength multiplexed optical transmission systems.
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