Title :
An optical differential 8-PSK modulator using cascaded QPSK modulators
Author :
Yang, Yanfu ; Cheng, Linghao ; Li, Zhaohui ; Lu, Chao ; Xiong, Qianjin ; Xu, Xiaogeng ; Liu, Lei ; Tam, H.Y. ; Wai, P.K.A.
Author_Institution :
Dept. of Electron. & Inf. Eng, Hong Kong Polytech. Univ., Kowloon, China
Abstract :
A new optical D8PSK modulator implementation is proposed. The proposed scheme removes the need for precise driving signal voltage control. Simulation results show the scheme enables modulation signal generation with more relaxed EO bandwidth requirements.
Keywords :
differential phase shift keying; optical communication equipment; optical fibre communication; optical modulation; quadrature phase shift keying; cascaded QPSK modulators; modulation signal generation; optical differential 8-PSK modulator; Bandwidth; Constellation diagram; Electrooptic modulators; Nonlinear optics; Optical interferometry; Optical modulation; Phase modulation; Photonics; Quadrature phase shift keying; Voltage;
Conference_Titel :
Optical Communication, 2009. ECOC '09. 35th European Conference on
Conference_Location :
Vienna
Print_ISBN :
978-1-4244-5096-1
