High coupling efficiency for DFB laser to fiber

Chaojiong Wei; KaiDe Zha

doi:10.1117/12.252159

24 September 1996 High coupling efficiency for DFB laser to fiber

Chaojiong Wei, KaiDe Zha

Proceedings Volume 2895, Fiber Optic Sensors V; (1996) https://doi.org/10.1117/12.252159
Event: Photonics China '96, 1996, Beijing, China

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.

Citation Download Citation

Chaojiong Wei and KaiDe Zha "High coupling efficiency for DFB laser to fiber", Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); https://doi.org/10.1117/12.252159

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