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Proceedings Paper

Optimal design of substrate-mode volume holographic wavelength-division demultiplexers
Author(s): Xuegong Deng; Feng Zhao; Ray T. Chen
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Paper Abstract

High diffraction efficiency volume-holograms can still be the state of art to manipulate lightwave and have been playing important roles in optical communication and networking arena. In this paper, we will analyze several passive substrate-mode wavelength-division- multiplexing/demultiplexing structures based on these holograms. Holograms are analyzed with coupled wave theory as well as some close-form expressions, and comparisons are made along these demultiplexing structures. Normalized parameters are used to summarize the procedure for optimal designs. The generalized parameters are applicable to any optical wavelength window. The input and output coupling of optical signals by volume holograms exhibit asymmetric properties that can strongly affect the performance of the device. Coupling of the demultiplexed signals into 1D linear multi-mode fiber array is analyzed and optimized for minimum power dissipation and loss balance. Based on the analysis and with some trade-offs on several aspects of the performance, a passive 8-channel substrate-mode surface- normal input/output demultiplexer working in the wavelength range of 768-864 nm is demonstrated. Simulations are compared with experiments.

Paper Details

Date Published: 21 April 2000
PDF: 17 pages
Proc. SPIE 3949, WDM and Photonic Switching Devices for Network Applications, (21 April 2000); doi: 10.1117/12.382889
Show Author Affiliations
Xuegong Deng, Univ. of Texas/Austin (United States)
Feng Zhao, Univ. of Texas/Austin (United States)
Ray T. Chen, Univ. of Texas/Austin (United States)

Published in SPIE Proceedings Vol. 3949:
WDM and Photonic Switching Devices for Network Applications
Ray T. Chen; George F. Lipscomb, Editor(s)

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