Demodulation of DPSK signals using in-line Mach-Zehnder interferometer based on a photonic crystal fiber
ABSTRACT We propose a novel fiber-based in-line DPSK demodulator using an in-fiber Mach-Zehnder interferometer (MZI). The device is fabricated by controlling the splicing mismatch between a photonic crystal fiber and standard single mode fibers.
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ABSTRACT: We have fabricated a photonic crystal fiber based Mach-Zehnder interferometer and demonstrated its use in both RZ-to-NRZ and NRZ-to-PRZ pulse format conversions for 10-Gb/s OOK signals. The PCF length is only ~165 cm.