Crystal-based DPSK and DQPSK demodulators using the principle of polarization beam interference(PBI) are theoretically introduced in this paper. The performance of the DPSK demodulator is also measured. What’s more, they are both polarization-independent.
© 2009 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.5060) Fiber optics and optical communications : Phase modulation
(230.0230) Optical devices : Optical devices
(230.1150) Optical devices : All-optical devices
D. Zhang, Y. Luo, Q. Hu, and S. Jiang, "Crystal-Based DPSK and DQPSK Demodualtors Using PBI," in Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper JWA18.
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