Applications of holographic devices for optical communications

Byoungho Lee; Seunghoon Han; Kyongsik Choi; Seunghwan Chung; Taesu Kim

doi:10.1117/12.561046

22 October 2004 Applications of holographic devices for optical communications

Byoungho Lee, Seunghoon Han, Kyongsik Choi, Seunghwan Chung, Taesu Kim

Proceedings Volume 5560, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications X; (2004) https://doi.org/10.1117/12.561046
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

In this paper, the applications of holographic devices for optical communications are reviewed and discussed. In dense wavelength division multiplexing (DWDM) optical communication systems, holographic devices have some potential applications to satisfy the complex requirements of the systems. We explain recent accomplishment in this field using holographic gratings (HGs) recorded in a photorefractive crystal or a photopolymer. General properties of the HG as a filter are reviewed. We note that the photopolymer HG can be used as a wavelength demultiplexer in DWDM system. It uses spatial dispersion properties of diffraction grating, which provides wavelength-dependent diffraction angle change to separate the multiplexed wavelength channels. The HG device has inherent advantages compared to the other device technologies. As specific applications of the device, we propose chromatic dispersion management of the multiple channel wavelength demultiplexer, channel wavelength tuning of the device output, and double band demultiplexer using superposed HGs. Also, we discuss optical signal routing using computer-generated holograms (CGHs) on a phase spatial light modulator. We expect that these HG devices and CGH system can exploit phase control, tunability, multiplexing and dynamic imaging control of holograms to cope with various DWDM system requirements.

Citation Download Citation

Byoungho Lee, Seunghoon Han, Kyongsik Choi, Seunghwan Chung, and Taesu Kim "Applications of holographic devices for optical communications", Proc. SPIE 5560, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications X, (22 October 2004); https://doi.org/10.1117/12.561046

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