激光与光电子学进展, 2018, 55 (12): 120003, 网络出版: 2019-08-01   

全保偏光纤光学频率梳技术 下载: 1699次

All Polarization-Maintaining Fiber-Based Frequency Combs
作者单位
1 上海理工大学光电信息与计算机工程学院, 上海 200093
2 华东师范大学精密光谱科学与技术国家重点实验室, 上海 200062
摘要
飞秒光学频率梳是当今激光技术领域的重要研究方向。近年来,得益于保偏光纤及器件制作工艺的持续进步,全保偏光纤超快激光器和光学频率梳发展迅速。从技术角度回顾了全保偏光纤光学频率梳的发展过程:首先,简要介绍了光学频率梳的原理、结构和关键组成,就锁模脉冲自启动等关键技术进行了讨论;其次,介绍了几种超短脉冲放大及压缩技术,包括啁啾脉冲放大、非线性放大及分离脉冲放大;随后,介绍了与载波相位偏频信号(f0)锁定相关的超连续谱产生和自参考拍频探测技术,实验上获得了高达40 dB的f0信号;最后,介绍了几种常用的锁定重复频率(fr)和f0信号的方法。
Abstract
The femtosecond optical frequency comb is becoming an increasingly valuable research field in laser optics. In recent years, all polarization-maintaining (PM) fiber-based lasers and optical frequency combs have achieved rapid growth owing to the continuous improvement of both PM-fiber and device fabrication technology. Herein, the development of all PM-fiber-based optical frequency combs is reviewed from a technical perspective. First, the basic principle, framework, and key components of an optical frequency comb are briefly introduced, and each key technology of the frequency comb, such as self-started mode-locking, is discussed. Second, several methods for pulse amplification and pulse compression are described, such as chirped-pulse amplification, nonlinear amplification, and divided-pulse amplification. Third, supercontinuum generation and self-referenced interferometry technology related to carrier phase offset(f0) locking are introduced, and the f0 signal with a signal to noise ratio (SNR) as high as 40 dB is experimentally demonstrated. Finally, the methods for locked repetition frequencies(fr) and f0 signals are illustrated.

刘婷婷, 郝强, 曾和平. 全保偏光纤光学频率梳技术[J]. 激光与光电子学进展, 2018, 55(12): 120003. Tingting Liu, Qiang Hao, Heping Zeng. All Polarization-Maintaining Fiber-Based Frequency Combs[J]. Laser & Optoelectronics Progress, 2018, 55(12): 120003.

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