1x16 demultiplexer using volume holographic gratings in iron-doped lithium niobate

Jun-Won An; Nam Kim; Kwon-Yeon Lee; Hyun-Jae Lee; Wang-Seok Seo

doi:10.1117/12.404795

19 October 2000 1x16 demultiplexer using volume holographic gratings in iron-doped lithium niobate

Jun-Won An, Nam Kim, Kwon-Yeon Lee, Hyun-Jae Lee, Wang-Seok Seo

Proceedings Volume 4110, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI; (2000) https://doi.org/10.1117/12.404795
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

A novel photorefractive demultiplexer for dense wavelength division multiplexing (DWDM) applications has been experimentally demonstrated for the first time, by using the narrow-band filtering and demultiplexing properties of a volume holographic gratings formed in lithium niobate crystal. For the multiple recording of the 16-wavelength channels with equal diffraction efficiency, the rotation multiplexing and the exposure time schedule are used. The 1x16 photorefractive DMUX is designed to work with a channel spacing of 0.5nm range from 670nm to 677.5nm and a bandwidth of 0.16nm. From the experimental results, the measured diffraction efficiency of each channel is 8.3+/- 0.62%. The 3dB bandwidth of 0.16+/- 0.005nm and the channel spacing of 0.46 approximately 0.5nm, with optical loss from Fresnel reflection and absorption in the crystal of 2.22dB/cm, are measured.

Citation Download Citation

Jun-Won An, Nam Kim, Kwon-Yeon Lee, Hyun-Jae Lee, and Wang-Seok Seo "1x16 demultiplexer using volume holographic gratings in iron-doped lithium niobate", Proc. SPIE 4110, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VI, (19 October 2000); https://doi.org/10.1117/12.404795

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