Optical filter architecture for approximating any 2 X 2 unitary matrix.
A new optical filter architecture and a new design methodology are presented for approximating any frequency-dependent 2 x 2 unitary matrix that consists of two coupled phase and amplitude responses. Design examples are provided for the compensation of polarization mode dispersion (PMD) by approximating the inverse of a synthesized fiber's Jones matrix. Compensation of the channel PMD over the signal bandwidth is demonstrated, as required for demultiplexing channels in a polarization-multiplexed system.
Madsen
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Lucent Technologies, Bell Laboratories, Room 1D350, Murray Hill, New Jersey 07974, USA. cmadsen@lucent.com
Oswald
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