An improved radio-over-fiber communication system based on optical carrier suppression

作者：Zhao Yin Chuan; Wu Zeng Mao; Xia Guang Qiong^*

来源：Optoelectronics and Advanced Materials-Rapid Communications, 2009, 3(8): 791-794.

• Optical wireless communication
• Radio-over-fiber (ROF)
• Optical carrier suppression modulation
• Optical mm-wave

An improved radio-over-fiber (ROF) system based on optical carrier suppression modulation (OCS) is presented. In this ROF system, through adopting frequency down-conversion of the down-sideband, a millimeter (mm) wave emitted signal, whose frequency is higher than twice of the radio frequency (RF) which is used to drive the dual-arm LiNbO(3) Mach-Zehnder intensity modulator (DLN-MZI) in OCS, can be obtained at the base station. Meantime, self-mixing technique has been used to realize frequency down-conversion of the up-stream link, and then the base station can be further simplified due to that the local oscillation (LO) is not necessary. For 2.5 Gb/s down-link data stream, the transmission characteristics of this system have been investigated. The results show that the effect of the fiber chromatic is not serious, after transmission over 140 Km single-mode fiber, the eye diagram is still open and the power penalty is about 0.86 dBm.

• 出版日期2009-8
• 单位西南大学; 东南大学