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Proceedings Paper

High coupling efficiency for DFB laser to fiber
Author(s): Chaojiong Wei; KaiDe Zha
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Paper Abstract

A conical microlens tipped on the SMF (single mode fiber) endface is evaluated for coupling between DFB laser diode and single-mode fibers. A theoretical model, based on coupling mode theory and Gaussian mode shapes for the laser and fiber fields, is developed to predict the coupling performance of this microlens. The coupling efficiency is calculated nearly 90% theoretically and measured at best to be 73.9%. A new equipment for fabricating the conical microlens is designed, which has the advantage of low-cost, simple manipulation, high finished product rate.

Paper Details

Date Published: 24 September 1996
PDF: 6 pages
Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); doi: 10.1117/12.252159
Show Author Affiliations
Chaojiong Wei, Tsinghua Univ. (China)
KaiDe Zha, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 2895:
Fiber Optic Sensors V
Kim D. Bennett; Byoung Yoon Kim; Yanbiao Liao, Editor(s)

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