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Optical Switch Uses Thin Film and Mirror

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Breck Hitz

Sarun Sumriddetchkajorn and Khunat Chaitavon of Thailand's National Science and Technology Development Agency and Ministry of Science and Technology, both in Pathumthani, have developed a novel concept for a 2 x 2 optical switch. The device eliminates the need for separate demultiplexing and multiplexing of wavelength division multiplexed channels, and it can achieve switching speeds in the millisecond range. A pair of actuators insert either a thin-film filter or a high-quality mirror into the beam path. When the mirror is in the path, all input channels emerge in the "out" fiber. When...Read full article

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    Published: August 2003
    2 x 2 optical switchCommunicationsmultiplexing of wavelength division multiplexed channelsResearch & Technologyseparate demultiplexingswitching speeds millisecond rangeTech Pulse

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