All-optical single-sideband upconversion with an optical interleaver and a semiconductor optical amplifier for radio-over-fiber applications.
All-optical single-sideband upconversion with an optical interleaver and a semiconductor optical amplifier for radio-over-fiber applications.
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DOI：
10.1364/oe.17.009810
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发表时间：
2009-06
期刊：
影响因子：
3.8
通讯作者：
Hyoung-Jun Kim;Jong-In Song
中科院分区：
文献类型：
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作者：
Hyoung-Jun Kim;Jong-In Song
我们提出并实验证明了一个全光上变频器的光单边带（OSSB）信号的产生在光纤无线电（RoF）系统。利用由光交织器和半导体光放大器组成的全光单边带上变频器产生RoF系统中克服光纤色散问题所需的OSSB信号。利用这种上变频技术，通过将光学中频（IF）信号（1GHz）与光学本机振荡器信号混频来生成RF频率范围从15 GHz到42.5GHz的OSSB射频（RF）信号，并且在46 km标准单模光纤上传输。通过这种上变频技术产生的OSSB RF信号显示出可忽略的色散诱导的载波抑制效应，这通常是针对光学双边带RF信号观察到的。全光SSB上变频器为微蜂窝个人通信系统应用提供高达29 dB的高转换效率和82 dB.Hz（2/3）的足够大的无杂散动态范围。
We propose and experimentally demonstrate an all-optical upconverter for the generation of an optical single-sideband (OSSB) signal in radio-over-fiber (RoF) systems. The OSSB signal, which is required for overcoming the fiber chromatic dispersion problem in RoF systems, is generated by using an all-optical SSB upconverter consisting of an optical interleaver and a semiconductor optical amplifier. With this upconversion technique, OSSB radio frequency (RF) signals with an RF frequency ranging from 15 GHz to 42.5 GHz are generated by mixing an optical intermediate frequency (IF) signal (1 GHz) with an optical local oscillator signal and transmitted over a 46 km standard single-mode fiber. The OSSB RF signal generated by this upconversion technique shows negligible dispersion-induced carrier suppression effects, which are usually observed for an optical double-sideband RF signal. The all-optical SSB upconverter provides high conversion efficiency of up to 29 dB and a sufficiently large spurious free dynamic range of 82 dB.Hz(2/3) for microcellular personal communication system applications.