Title :
Implementation of differential precoder for high-speed optical DQPSK modulation
Author :
Yue, Peng ; Wen, Aijun ; Shang, Tao ; Wang, Chengwei
Author_Institution :
State Key Lab. on Integrated Services Networks, Xidian Univ., Xi´´an
Abstract :
The differential precoder is a key component for high-speed optical differential quadrature phase-shift keying (DQPSK) transmissions, and a method of the implementation of differential precoder for high-speed optical DQPSK modulation is introduced in this paper. This method first researches the optical DQPSK encoder and decoder, and then gets the function of the differential precoder. Depending on the karnaugh maps, we can deduce the logic operations of the differential precoder. Using this method, the logic operations of different DQPSK precoders can be deduced corresponding to different encoders and decoders.
Keywords :
differential phase shift keying; high-speed optical techniques; optical communication; optical modulation; precoding; quadrature phase shift keying; Karnaugh maps; differential precoder; differential quadrature phase-shift keying; highspeed optical DQPSK modulation; Decoding; High speed optical techniques; Integrated optics; Logic; Optical devices; Optical fiber networks; Optical modulation; Optical receivers; Optical sensors; Phase modulation;
Conference_Titel :
Wireless and Optical Communications Networks, 2008. WOCN '08. 5th IFIP International Conference on
Conference_Location :
Surabaya
Print_ISBN :
978-1-4244-1979-1
Electronic_ISBN :
978-1-4244-1980-7
DOI :
10.1109/WOCN.2008.4542504
