Title :
Broadband downlink stable radio frequency phase delivery exploiting fiber chromatic dispersion
Author :
Zhongle Wu ; Yitang Dai ; Anxu Zhang ; Kun Xu ; Jianqiang Li ; Jintong Lin
Author_Institution :
State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
We propose and demonstrate a broadband phase compensation method for transfer radio frequency (RF) signal from remote antenna to center station through a radio-over-fiber (ROF) link. By exploiting fiber´s chromatic dispersion, a calibration signal modulated on a computer-controlled tunable laser from the center is used for link-length compensation, a broadband frequency independent stabilized ROF link is fulfilled. A proof-of-concept experiment is carried out. Radio frequency was transferred 10 km and a phase fluctuation compression factor greater than 30 is achieved for 1205 MHz in 3000 seconds and for 2460 MHz in 5000 seconds.
Keywords :
calibration; compensation; laser tuning; optical fibre dispersion; optical modulation; radio-over-fibre; broadband downlink stable radio frequency phase delivery; broadband phase compensation method; calibration signal; center station; computer-controlled tunable laser; distance 10 km; fiber chromatic dispersion; frequency 1205 MHz; frequency 2460 MHz; link-length compensation; phase fluctuation compression factor; radio-over-fiber; remote antenna; time 3000 s; time 5000 s; Adaptive optics; Fluctuations; Optical fiber amplifiers; Optical fiber communication; Optical fiber dispersion; phase noise cancellation; radio frequency transfer; radio-over-fiber link;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2013 12th International Conference on
Conference_Location :
Chengdu
DOI :
10.1109/ICOCN.2013.6617188
