AN IMPROVED FULL-DUPLEX RADIO-OVER-FIBER SYSTEM USING OPTICAL CARRIER SUPPRESSED DOUBLE SIDEBAND MODULATION AT 60 GHz

作者：Yang, Hao^*; Wang, Fa Qiang; Huang, Xuguang; Liang, Ruisheng; Wu, Yiting

来源：Microwave and Optical Technology Letters, 2009, 51(6): 1473-1476.

DOI：10.1002/mop.24361

• radio over fiber
• optical carrier suppressed double sideband modulation
• microwave photonics
• dense wavelength-division-multiplexing
• millimeter-wave communications

Based on improved optical carrier suppressed double sideband modulation with 60 GHz repetitive frequency, a full-duplex radio-over-fiber transport system using a single source at central office was proposed and demonstrated. Carrier suppressed double sideband optical signal was generated by using an optical phase modulator and dense-wavelength-division-multiplexing technique, as well as an additional external amplitude modulator for loading basebond downlink data to one first-order sideband. A dense-wavelength-division-multiplexer was used to separate the two first-order sidebands: the lower sideband was used to carry 5 Gbit/s downstream data, whereas the upper sideband was sent to base station for reuse of modulating upstream data. The limitation of chromatic dispersion is greatly reduced due to that only one sideband is modulated. Therefore, the system of bidirectional transmission shows cost-efficient configuration and good performance over 80 kin delivery with less than 1.5 dB power penalty.

• 出版日期2009-6
• 单位华南师范大学