Linearly Chirped Microwave Generation Using a Monolithic Integrated Amplified Feedback Laser
Linearly Chirped Microwave Generation Using a Monolithic Integrated Amplified Feedback Laser
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使用单片集成放大反馈激光器产生线性啁啾微波
DOI:
10.1109/lpt.2017.2756918
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发表时间:
2017-11
期刊:
影响因子:
--
通讯作者:
L. Zhao
中科院分区:
文献类型:
--
作者:
L. Guo;R. Zhang;D. Lu;B. Pan;G. Chen;L. Zhao
A linearly chirped microwave waveform (LCMW) generator based on a monolithically integrated dual-mode amplified feedback laser (AFL) is demonstrated. The proposed LCMW generator is very simple, only consisting of an AFL, an arbitrary waveform generator, and a photodetector. By applying a sweeping signal to the amplifier section of the AFL, the beating frequency of the AFL’s output can be changed in a chirped manner. LCMW is experimentally demonstrated using a heterodyne-beating technique. The measured microwave waveform has a pulse duration of <inline-formula> <tex-math notation="LaTeX">$1~\mu \text{s}$ </tex-math></inline-formula>, a bandwidth of 3.3 GHz (ranging from 31.5 to 34.8 GHz), corresponding to a time-bandwidth product of <inline-formula> <tex-math notation="LaTeX">$3.3 \times 10^{3}$ </tex-math></inline-formula> and a compression ratio of <inline-formula> <tex-math notation="LaTeX">$2.6 \times 10^{3}$ </tex-math></inline-formula>.
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