NDLI: High performance pump laser modules for erbium-doped fiber amplifiers

Content Provider	IEEE Xplore Digital Library
Author	Huang, S.Y. Greenberg, L.A. Corser, T.A.
Copyright Year	1993
Description	Author affiliation: AT&T Bell Labs., Breinigsville, PA, USA (Huang, S.Y.; Greenberg, L.A.; Corser, T.A.)
Abstract	A 14-pin butterfly pump laser module for erbium-doped fiber amplifiers is described. A high coupling microlens has been realized by etching. A coupling efficiency of 74% has been measured for 1.48-/spl mu/m pump lasers with a variety of far-field angles. The etched microlens is fabricated by batch process and is highly manufacturable. This microlens also provides less reflection and thus interferes less with the operation of lasers. A /spl Delta/T of 60/spl deg/C was measured for an anticipated end-of-life laser chip power dissipation of 1.2 W. The observed performance degradation after a variety of thermal and mechanical shocks is found to be negligible. A maximum change of 5% in coupling efficiency was measured after 2000 hr of 85/spl deg/C bake. The TEC (thermoelectric cooler) resistance measurement showed negligible change, Less than 0.2 dB of temperature tracking error was observed from the routine fabrication data.<>
Starting Page	968
Ending Page	973
File Size	432896
Page Count	6
File Format	PDF
ISBN	0780307941
DOI	10.1109/ECTC.1993.346736
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-06-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser excitation Erbium-doped fiber lasers Pump lasers Lenses Microoptics Semiconductor device measurement Electrical resistance measurement Etching Erbium-doped fiber amplifier Optical coupling
Content Type	Text
Resource Type	Article

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