21 April 2000 Optimal design of substrate-mode volume holographic wavelength-division demultiplexers
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Proceedings Volume 3949, WDM and Photonic Switching Devices for Network Applications; (2000) https://doi.org/10.1117/12.382889
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
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.
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Xuegong Deng, Xuegong Deng, Feng Zhao, Feng Zhao, Ray T. Chen, Ray T. Chen, } "Optimal design of substrate-mode volume holographic wavelength-division demultiplexers", Proc. SPIE 3949, WDM and Photonic Switching Devices for Network Applications, (21 April 2000); doi: 10.1117/12.382889; https://doi.org/10.1117/12.382889

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