Abstract
We comprehensively analyze the demodulation of wavelength division multiplexed
(WDM) non return-to-zero differential phase-shift keying (NRZ-DPSK) signals
by a single microring resonator. Simultaneous demodulation of multiple 40
Gbit/s WDM NRZ-DPSK channels is demonstrated using a single silicon microring
resonator with free spectral range (FSR) of 100 GHz. Bit error measurements
show very good performance for both through and drop port demodulations for
all channels, and the drop port demodulation exhibits better wavelength detuning
tolerance than for demodulation using a Mach-Zehnder delay interferometer
(MZDI).
© 2011 IEEE
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