標題: Multimode optical demultiplexer for DWDM with liquid crystal enabled functionalities
作者: Huang, MJ
Pan, RP
Sheu, CR
Lan, YP
Lai, YF
Pan, CL
電子物理學系
光電工程學系
Department of Electrophysics
Department of Photonics
關鍵字: demultiplexer (DEMUX);dense wavelength-division multiplexing (DWDM);equalizer;liquid crystal (LC);spatial light modulator (SLM);switching
公開日期: 1-Oct-2004
摘要: We have developed a liquid-crystal-based multimode optical demultiplexer (DEMUX) with additional functionalities such as switching and power equalization. Demultiplexing 16-channel 100-GHz-spaced signals into a 62.5-mum multimode-fiber array is demonstrated. The central wavelength of each channel is designed according to the International Telecommunication Union grid. Adjacent channel crosstalk is less than -30 dB. The average 1- and 3-dB passbands of the DEMUX are 12.5 and 22.5 GHz, respectively. A maximum extinction ratio of 16.2 dB is achieved. Different channels can be switched with rise and fall times of similar to10 and similar to70 ms, respectively. The outputs of the channels are equalized to -65 dBm. The variation between different channels reduced from similar to10 dB to less than 0.5 dB.
URI: http://dx.doi.org/10.1109/LPT.2004.834584
http://hdl.handle.net/11536/26361
ISSN: 1041-1135
DOI: 10.1109/LPT.2004.834584
期刊: IEEE PHOTONICS TECHNOLOGY LETTERS
Volume: 16
Issue: 10
起始頁: 2254
結束頁: 2256
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