Simple method for mitigation of polarization crosstalk in silica planar lightwave circuit directional couplers
IEEE Photonics Technology Letters(2006)
摘要
Polarization crosstalk in planar lightwave circuit directional couplers can cause significant polarization-dependence in interferometers that use them. We show a simple way to mitigate the polarization crosstalk without incurring a performance penalty or requiring extra fabrication steps. We demonstrate it on a 23-ps Mach-Zehnder delay interferometer
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关键词
Optical polarization,Silicon compounds,Circuits,Directional couplers,Optical waveguides,Optical attenuators,Electromagnetic waveguides,Optical filters,Optical crosstalk,Optical interferometry
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