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Optical Engineering

Three-by-three port fused fiber grating coupler
Author(s): Lung Ai; Wen-Fung Liu; Ming-Yue Fu; Tzu-Chiang Chen; Jiang-Chiou Mau
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Paper Abstract

We experimentally demonstrate that a 3×3 port fused fiber grating coupler can be implemented by combining the technique of fabricating fused-fiber couplers as well as that of writing fiber Bragg gratings for application in all-fiber optical filters. A Bragg grating with a reflectivity of 65% is written into the coupling region of a 3×3 fiber coupler with the coupling ratios of 60, 24, and 16%, respectively, for three different output ports. This device can be applied in optical multi/demultiplexing and add/drop filters or in special optical filters.

Paper Details

Date Published: 1 February 2009
PDF: 5 pages
Opt. Eng. 48(2) 025002 doi: 10.1117/1.3080745
Published in: Optical Engineering Volume 48, Issue 2
Show Author Affiliations
Lung Ai, Chung Cheng Institute of Technology (Taiwan)
Wen-Fung Liu, Feng Chia Univ. (Taiwan)
Ming-Yue Fu
Tzu-Chiang Chen, Chung Cheng Institute of Technology (Taiwan)
Jiang-Chiou Mau, Feng Chia Univ. (Taiwan)

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