Title :
Wide dynamic range OSNR monitoring for RZ-DQPSK systems using delay-tap sampling technique
Author :
Khan, F.N. ; Lau, Alan Pak Tao ; Lu, Chao ; Wai, P.K.A.
Author_Institution :
Dept. of Electron. & Inf. Eng., Photonics Res. Centre, Kowloon, China
Abstract :
We propose half-symbol delay-tap sampling for OSNR monitoring and extend the monitoring range to 5-45 dB. The proposed method also enables calibration-free monitoring with range of 16-43 dB at 40 Gbps data rate.
Keywords :
differential phase shift keying; quadrature phase shift keying; signal sampling; RZ-DQPSK systems; calibration-free monitoring; half-symbol delay-tap sampling; wide dynamic range OSNR monitoring; Calibration; Delay systems; Dynamic range; High speed optical techniques; Monitoring; Optical noise; Photonics; Sampling methods; Signal to noise ratio; Stimulated emission;
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
