Tunable compact asynchronous optical sampling system using Er-doped fiber laser

IF 5.2 1区物理与天体物理 Q1 OPTICS

High Power Laser Science and Engineering Pub Date : 2023-03-03 DOI:10.1017/hpl.2023.21

Zilin Zhao, D. Luo, Yang Liu, Zejiang Deng, Lian Zhou, Gehui Xie, Chenglin Gu, Yanzhao Yang, Bin Wu, Wenxue Li

引用次数: 0

Abstract

Abstract We report a compact, tunable, self-starting, all-fiber laser-based asynchronous optical sampling (ASOPS) system. Two Er-doped fiber oscillators were used as the pulsed-laser source, whose repetition rate could be set at 100 MHz with a tuning range of 1.25 MHz through a fiber delay line. By employing phase-locked and temperature control loops, the repetition rate offset of the two lasers was stabilized with 7.13 × 10−11 fractional instability at an average time of 1 s. Its capabilities in the terahertz regime were demonstrated by terahertz time-domain spectroscopy, achieving a spectral bandwidth of 3 THz with a dynamic range of 30 dB. The large range of repetition rate adjustment in our ASOPS system has the potential to be a powerful tool in the terahertz regime.

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掺铒光纤激光器可调谐紧凑异步光采样系统

摘要:本文报道了一种紧凑、可调谐、自启动、全光纤激光异步光采样系统。采用两个掺铒光纤振荡器作为脉冲激光源，通过光纤延迟线将其重复频率设置为100 MHz，调谐范围为1.25 MHz。通过锁相环和温度控制环，在平均1 s的时间内，两个激光器的重复速率偏移稳定在7.13 × 10−11分数不稳定性。太赫兹时域光谱证明了其在太赫兹频段的能力，实现了3thz的频谱带宽，动态范围为30db。在我们的ASOPS系统中，大范围的重复频率调整有可能成为太赫兹频段的有力工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Power Laser Science and Engineering Physics and Astronomy-Nuclear and High Energy Physics

CiteScore

7.10

自引率

4.20%

发文量

401

审稿时长

21 weeks

期刊介绍： High Power Laser Science and Engineering (HPLaser) is an international, peer-reviewed open access journal which focuses on all aspects of high power laser science and engineering. HPLaser publishes research that seeks to uncover the underlying science and engineering in the fields of high energy density physics, high power lasers, advanced laser technology and applications and laser components. Topics covered include laser-plasma interaction, ultra-intense ultra-short pulse laser interaction with matter, attosecond physics, laser design, modelling and optimization, laser amplifiers, nonlinear optics, laser engineering, optical materials, optical devices, fiber lasers, diode-pumped solid state lasers and excimer lasers.