Optical DQPSK Receiver With Enhanced Dispersion Tolerance |
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| Authors: | Lyubomirsky I. Cheng-Chung Chien Yi-Hsiang Wang |
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| Affiliation: | Univ. of California, Riverside; |
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| Abstract: | We propose and analyze a novel differential quadrature phase-shift-keying (DQPSK) receiver architecture based on optical frequency discriminator filtering and direct detection. Our simulations show that such a receiver provides significantly enhanced tolerance to chromatic dispersion compared with the conventional delay-interferometer-based receiver. Preliminary measurement results demonstrate the novel DQPSK demodulator concept at 20 Gb/s. |
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