激光与光电子学进展, 2018, 55 (4): 040001, 网络出版: 2018-09-11   

光纤飞秒激光抽运的非线性光学频率变换研究进展 下载: 2607次封面文章

Research Progress of Nonlinear Frequency Conversion Technology Based on Fiber Femtosecond Lasers
作者单位
天津大学精密仪器与光电子工程学院超快激光研究室, 光电信息技术教育部重点实验室, 天津 300072
摘要
最近十几年来,随着飞秒激光技术及非线性晶体制备技术的逐渐成熟,非线性光学频率变换技术得到了飞速发展。非线性光学频率变换技术的研究旨在突破激光增益介质发射谱线的限制,使激光器输出波长拓展至传统激光器所无法直接输出的波段范围,以满足更加广泛的科研及应用需求。到目前为止,非线性频率变换技术是获得多波长和可调谐飞秒激光的最简捷有效的途径。近些年来,本研究室在研究光纤飞秒激光器的基础上,开展了基于掺Yb 3+光子晶体光纤飞秒激光系统抽运不同介质的非线性频率变换研究,主要包括:基于块状晶体的光学参量振荡(OPO)技术、基于砷化镓(GaAs)纳米线的频率上转换、基于高非线性光子晶体光纤的超连续谱及三次谐波的产生。简要介绍国内外相关研究成果,重点综述了本研究室近五年来在上述研究领域的科研成果,分别介绍了OPO技术、砷化镓(GaAs)纳米线的频率上转换和基于高非线性光子晶体光纤的超连续谱及三次谐波的产生技术的基本原理、研究进展以及前沿应用。
Abstract
Over the last decade, there have been spectacular development in nonlinear frequency conversion techniques, due to the development of improved nonlinear materials together with the evolution of femtosecond pump lasers. Compared with traditional laser sources, nonlinear conversion techniques represent a simple and effective approach to the direct generation of widely tunable and broadband coherent radiation breaking through the limited bandwidth of gain medium. And thus such techniques are of great interests for different applications. Up to now, our group has built up a variety of high power fiber lasers successfully, which provides a cornerstone for the nonlinear frequency conversion. We review the recent process developments in nonlinear frequency conversion techniques driven by photonics crystal femtosecond fiber lasers, especially in the last five years, including optical parametric oscillators (OPOs), excellent frequency up conversion based on GaAs nanowires, supercontinuum generation and third harmonic generation based on highly nonlinear photonic crystal fibers. In addition, basic principles and some advanced applications are also discussed in this review.

赵君, 胡明列, 范锦涛, 刘博文, 宋有建, 柴路, 王清月. 光纤飞秒激光抽运的非线性光学频率变换研究进展[J]. 激光与光电子学进展, 2018, 55(4): 040001. Jun Zhao, Minglie Hu, Jintao Fan, Bowen Liu, Youjian Song, Lu Chai, Qingyue Wang. Research Progress of Nonlinear Frequency Conversion Technology Based on Fiber Femtosecond Lasers[J]. Laser & Optoelectronics Progress, 2018, 55(4): 040001.

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