A novel high-speed polarization-independent off-center optical filtering technique for monitoring alignment status between pulse generator and data modulator in RZ-DPSK systems is proposed and demonstrated. A monitoring dynamic range of 3.35 dB is achieved experimentally.
© 2005 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
Y. Ku, G. Lu, C. Chan, and L. Chen, " A Novel Technique for Modulation Alignment Monitoring in RZ-DPSK Systems Using Off-Center Optical Filtering," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2005), paper OWJ4.
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