Title :
Ultra-wide range in-service chromatic dispersion measurement using coherent detection and digital signal processing
Author :
Wang, Junyi ; Jiang, Xin ; He, Xuan ; Pan, Z.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Louisiana at Lafayette, Lafayette, LA, USA
Abstract :
We proposed an ultra-wide range chromatic dispersion (CD) measurement method using coherent detection and digital signal processing. We measured the average phase at frequency ± f as a function of frequency f, and estimated the total accumulated CD with polynomial fitting algorithm. The method is compatible with modern coherent optical networks and capable of measuring CD of at least ± 16000 ps/nm with an accuracy of better than ± 50 ps/nm.
Keywords :
digital signal processing chips; optical fibre dispersion; optical fibre networks; optical variables measurement; phase measurement; polynomials; average phase measurement; coherent detection; coherent optical networks; digital signal processing; polynomial fitting algorithm; ultrawide range in-service chromatic dispersion measurement; Abstracts; 50%-RZ; chromatic dispersion; measurement; polynomial fitting algorithm;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
