Title :
Digital clock recovery algorithm for optical coherent receivers operating independent of laser frequency offset
Author :
Tanimura, Takahito ; Hoshida, Takeshi ; Oda, Shoichiro ; Nakashima, Hisao ; Yuki, Masahiro ; Tao, Zhenning ; Liu, Ling ; Rasmussen, Jens C.
Author_Institution :
Fujitsu Labs. Ltd., Kawasaki
Abstract :
We propose a digital clock recovery algorithm and demonstrate its tolerance to at least 5 GHz laser frequency mismatch in a 43 Gb/s DP-RZ-QPSK receiver after 1200 km transmission.
Keywords :
optical receivers; quadrature phase shift keying; synchronisation; DP-RZ-QPSK receiver; digital clock recovery algorithm; laser frequency offset; optical coherent receivers; Clocks; Frequency; Laser noise; Laser tuning; Optical distortion; Optical receivers; Optical signal processing; Optical transmitters; Phase detection; Signal processing algorithms;
Conference_Titel :
Optical Communication, 2008. ECOC 2008. 34th European Conference on
Conference_Location :
Brussels
Print_ISBN :
978-1-4244-2227-2
Electronic_ISBN :
978-1-4244-2228-9
DOI :
10.1109/ECOC.2008.4729126
