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1996
Conference Paper
Titel
Crosstalk reduced digital optical switch with single electrode designed for InP
Abstract
Coherent crosstalk of optical space switch matrices is a key problem of optical transparent networks. A new crosstalk compensating technique based on the integration of a single electrode mode converter as correcting device into a 1*2 or 2*2 digital optical switch (DOS) is proposed and theoretically investigated. Introduction of the mode converter stage enhances a -20 dB crosstalk DOS device to -40 dB with only a small increase of the device length. The new scheme with one common electrode for DOS and converter simplifies a recently published architecture needing 4 additional electrodes and a special control algorithm. A realistic design of a -40 dB crosstalk DOS based on InP is presented.
Language
English
Tags
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iii-v semiconductors
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indium compounds
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integrated optics
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mode matching
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optical communication equipment
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optical crosstalk
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optical directional couplers
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optical switches
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single electrode
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inp
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coherent crosstalk
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digital optical switch
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optical space switch matrices
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optical transparent networks
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crosstalk compensating technique
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single electrode mode converter
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correcting device
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2*2 digital optical switch
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1*2 digital optical switch
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mode converter stage
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device length
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control algorithm
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realistic design