Title :
Novel ultra wide-range frequency offset estimation for digital coherent optical receiver
Author :
Zhang, Shaoliang ; Xu, Lei ; Yu, Jianjun ; Huang, Ming-Fang ; Kam, Pooi Yuen ; Yu, Changyuan ; Wang, Ting
Author_Institution :
Dept. of Electr.&Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
We propose and experimentally demonstrate a novel, dual-stage frequency offset estimator and achieve the widest range of ± 0.5 times the system symbol rate for the first time in a 42.8-Gbit/s coherent PolMux QPSK receiver.
Keywords :
optical receivers; quadrature phase shift keying; coherent PolMux QPSK receiver; digital coherent optical receiver; dual-stage frequency offset estimator; system symbol rate; ultra wide-range frequency offset estimation; Digital signal processing; Frequency estimation; High speed optical techniques; Optical receivers; Optical transmitters; Phase estimation; Phase shift keying; Quadrature phase shift keying; Sampling methods; Timing;
Conference_Titel :
Optical Fiber Communication (OFC), collocated National Fiber Optic Engineers Conference, 2010 Conference on (OFC/NFOEC)
Conference_Location :
San Diego, CA
Electronic_ISBN :
978-1-55752-884-1
