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Characterizing Polarizationdependent Wavelength in AWGs and PLCs

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Characterizing Polarizationdependent Wavelength in AWGs and PLCs

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  • Author: Michael Carlson
The spectral features of wavelength-dependent passive optical components can significantly vary according to the input state of polarization (SOP). This is the polarization-dependent wavelength (PDW) phenomenon-sometimes referred to as polarizationdependent center wavelength (PDCW) or polarization-dependent bandwidth (PDBW). The severity of this dependence is closely related to device technology and, in many devices, namely planar lightguide circuits (PLCs), it must be characterized so that compensation techniques can be evaluated and implemented.

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