Title :
Optical Fiber Polarization Interferometer for Performance Improvement in Radio-Over-Fiber Systems
Author :
Dong, Yi ; Li, Zhaohui ; Tian, Xiangqing ; Wang, Qijie ; He, Hao ; Lu, Chao ; Wang, Yixin ; Hu, Weisheng ; Cheng, Tee Hiang
Author_Institution :
Shanghai Jiao Tong Univ., Shanghai
Abstract :
An extinction ratio tunable optical fiber polarization interferometer (OFPI) is proposed and implemented to increase the optical modulation depth in radio-over-fiber (RoF) systems by suppressing the optical carrier power. The extinction ratio of the OFPI can be simply tuned by adjusting the polarization state of the launched RoF signal. Experimental results illustrate that the receiver sensitivity and dynamic range of RoF systems are greatly improved using the proposed scheme.
Keywords :
fibre optic sensors; light interferometers; microwave photonics; optical fibre polarisation; optical modulation; radio-over-fibre; dynamic range; extinction ratio; optical carrier power; optical fiber polarization interferometer; optical modulation depth; radio-over-fiber systems; receiver sensitivity; Dynamic range; Optical distortion; Optical fiber polarization; Optical filters; Optical interferometry; Optical modulation; Optical pumping; Optical receivers; Optical scattering; Optical sensors; Carrier-to-sideband ratios (CSRs); optical fiber polarization interferometer (OFPI); radio-over-fiber (RoF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.902232
