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Optical Engineering

Radio-over-fiber system with tunable millimeter-wave generation and wavelength reuse for uplink connection
Author(s): Chan Zhang; Tigang Ning; Jing Li; Heng Lin; Zhiming Liu
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Paper Abstract

We propose and demonstrate a radio-over-fiber system to generate an optical millimeter wave (MMW) and realize wavelength reuse for an uplink connection. A tunable optical comb generated by a single Fabry–Perot laser serves as the optical source. The central carrier is separated by an optical circulator cascaded with a fiber Bragg grating. For the downlink, the unmodulated central carrier is coupled with one subcarrier, which has been modulated with 2.5-Gb/s data. Then, different MMWs can be generated by choosing different subcarriers. While for the uplink, the same central carrier is reused for an uplink connection with 1.25-Gb/s data. In the scheme, a 60-GHz MMW is obtained and the bidirectional data are simultaneously transmitted over 60-km transmission with <0.5-dB power penalty. This system shows a simple cost-efficient configuration and good performance over long-distance delivery.

Paper Details

Date Published: 23 October 2015
PDF: 6 pages
Opt. Eng. 55(3) 031116 doi: 10.1117/1.OE.55.3.031116
Published in: Optical Engineering Volume 55, Issue 3
Show Author Affiliations
Chan Zhang, Beijing Jiaotong Univ. (China)
Tigang Ning, Beijing Jiaotong Univ. (China)
Jing Li, Beijing Jiaotong Univ. (China)
Heng Lin, Beijing Jiaotong Univ. (China)
Zhiming Liu, The 41st Institute of China Electronics Technology Group Corporation (China)

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