High brightness, high SNR radio-frequency signal generated by an all-fibered linear-polarization single-mode dual-frequency fiber laser
文献类型：期刊论文
| 作者 | Qi, Yunfeng; Zhao, Xiang; Shen, Hui; Bai, Gang; Zhang, Jingpu; Chen, Xiaolong; Yang, Yifeng; He, Bing; Zhou, Jun |
| 刊名 | Opt. Express
 |
| 出版日期 | 2017 |
| 卷号 | 25期号:22页码:27051 |
| 通讯作者 | dreamer_7@siom.ac.cn ; bryanho@siom.ac.cn ; junzhousd@siom.ac.cn |
| 英文摘要 | A high brightness, high signal-to-noise ratio (SNR) linear-polarization optically generated radio-frequency signal is demonstrated based on an all-fibered master oscillator power amplifier (MOPA) configuration. The seed signal is generated by beating two different frequency beams which are split from the same single frequency laser source. One beam has initial frequency and the other beam is shifted by 200 MHz using an acoustic-optical modulator. The combined beam contains two frequency components with a frequency difference of 200 MHz and this dual-frequency laser signal is then amplified by a three-stage all-fibered amplifier. In order to obtain high brightness output, a single mode fiber with 10 mu m core diameter is adopted in the amplifier chain. A designed step-distribution strain is applied on the active fiber for the suppression of stimulated Brillouin scattering (SBS) effect. As a result, up to 143 W output power is achieved with the slop efficiency of 81.4%. The beam quality factors (M-2) are measured to 1.06 (M-x(2)) and 1.04 (M-y(2)) and the SNR is up to 54.7 dB. These two frequency components with a certain frequency gap can be identically amplified via the fiber amplifier and the beat note stability, modulation depth as well as SNR are well maintained before and after amplification. To the best of our knowledge, this is the highest reported brightness of the optically generated radio-frequency signal. |
| 资助信息 | National Natural Science Foundation of China (NSFC) [61405202, 61705243]; National Science Foundation of Shanghai [16ZR1440100, 16ZR1440200]; Program of Shanghai Technology Research Leader [17XD1424800]; Shanghai Sailing Program [17YF1421200]; Key Technologies R&D Program of Jiangsu [BE2016005-4]; K. C. Wong Education Foundation |
| 收录类别 | SCI |
| WOS记录号 | WOS:000413995000058 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/28378]  |
| 专题 | 上海光学精密机械研究所_空间激光信息技术研究中心 |
| 作者单位 | 中国科学院上海光学精密机械研究所 |
| 推荐引用方式 GB/T 7714 | Qi, Yunfeng,Zhao, Xiang,Shen, Hui,et al. High brightness, high SNR radio-frequency signal generated by an all-fibered linear-polarization single-mode dual-frequency fiber laser[J]. Opt. Express,2017,25(22):27051. |
| APA | Qi, Yunfeng.,Zhao, Xiang.,Shen, Hui.,Bai, Gang.,Zhang, Jingpu.,...&Zhou, Jun.(2017).High brightness, high SNR radio-frequency signal generated by an all-fibered linear-polarization single-mode dual-frequency fiber laser.Opt. Express,25(22),27051. |
| MLA | Qi, Yunfeng,et al."High brightness, high SNR radio-frequency signal generated by an all-fibered linear-polarization single-mode dual-frequency fiber laser".Opt. Express 25.22(2017):27051. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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