Title :
Impact of RZ pulse carver phase errors on optical DQPSK
Author :
Han, Yan ; Li, Guifang
Author_Institution :
Coll. of Opt. & Photonics/CREOL & FPCE, Central Florida Univ., Orlando, FL, USA
Abstract :
The impact of phase errors caused by imperfect return-to-zero (RZ) pulse carving on optical differential quadrature phase-shift keying (DQPSK) is analyzed. The two-symbol-delayed interferometric demodulation is proposed as an effective means to mitigate this degradation.
Keywords :
demodulation; differential phase shift keying; optical modulation; quadrature phase shift keying; RZ pulse carver phase errors; RZ pulse format; finite extinction ratio; imbalanced drive signals; imperfect return-to-zero pulse carving; long-haul optical communication systems; optical DQPSK; optical differential quadrature phase-shift keying; two-symbol-delayed interferometric demodulation; Amplitude modulation; Degradation; Demodulation; Extinction ratio; Optical filters; Optical interferometry; Optical modulation; Optical pulses; Phase modulation; Pulse modulation;
Conference_Titel :
Optical Fiber Communication Conference, 2005. Technical Digest. OFC/NFOEC
Print_ISBN :
1-55752-783-0
DOI :
10.1109/OFC.2005.192985
