Linearly chirped microwave waveform generation with large time-bandwidth product by optically injected semiconductor laser
Linearly chirped microwave waveform generation with large time-bandwidth product by optically injected semiconductor laser
复制标题
通过光注入半导体激光器产生具有大时间带宽积的线性啁啾微波波形
DOI：
10.1364/oe.24.018460
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发表时间：
2016-08-08
期刊：
影响因子：
3.8
通讯作者：
Pan, Shilong
中科院分区：
文献类型：
--
作者：
Zhou, Pei;Zhang, Fangzheng;Pan, Shilong
基于光注入半导体激光器，提出并演示了一种具有大时间带宽积（TBWP）的线性啁啾微波波形（LCMW）的光子生成方案。在所提出的系统中，光注入半导体激光器在第一周期（P1）振荡状态下运行。经过光电转换后，可以产生微波信号，其频率由注入强度决定。通过适当控制注入强度，可以产生具有大TBWP的LCMW。所提出的系统结构简单紧凑。此外，所生成的 LCMW 的中心频率、带宽以及持续时间都可以轻松调整。进行了一项实验。成功生成了 TBWP 高达 1.2x10(5)（带宽 12 GHz；持续时间 10 mu s）的 LCMW。还展示了调整中心频率、带宽和持续时间的灵活性。 (C) 2016年美国光学学会
A scheme for photonic generation of linearly chirped microwave waveforms (LCMWs) with a large time-bandwidth product (TBWP) is proposed and demonstrated based on an optically injected semiconductor laser. In the proposed system, the optically injected semiconductor laser is operated in period-one (P1) oscillation state. After optical-to-electrical conversion, a microwave signal can be generated with its frequency determined by the injection strength. By properly controlling the injection strength, an LCMW with a large TBWP can be generated. The proposed system has a simple and compact structure. Besides, the center frequency, bandwidth, as well as the temporal duration of the generated LCMWs can be easily adjusted. An experiment is carried out. LCMWs with TBWPs as large as 1.2x10(5) (bandwidth 12 GHz; temporal duration 10 mu s) are successfully generated. The flexibility for tuning the center frequency, bandwidth and temporal duration is also demonstrated. (C) 2016 Optical Society of America