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arXiv 2405.04424physics.optics
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连续波激光与超快激光之间的三波混频

Three-Wave Mixing between Continuous-Wave and Ultrafast Lasers

Jie Zhan, Nicholas D. Cooper, Melanie A. R. Reber

AI总结:

本文提出利用Nd:YAG连续波激光与Yb光纤飞秒频率梳在BBO晶体中进行和频产生,实现简单易行的可调谐频率梳超快激光波长转换,并用SNLO仿真验证设计。

摘要:

超快光学频率梳在分子光谱学中同时提供高光谱分辨率和时间分辨率,已成为化学和物理学许多领域中的强大工具。由超快锁模激光器产生的超快激光和频率梳通常需要转换到其他波长。常用的波长转换方法是光学参量振荡器(需要外部光学腔)以及超连续谱产生与光学参量放大器相结合。无论是商用还是自建系统,这些装置都复杂且昂贵。在此,我们提出一种替代性的、简单且易于实现的调谐频率梳超快激光方法,该方法得益于新型连续波激光技术。我们探索了Nd:YAG连续波激光器与Yb光纤飞秒频率梳在β-硼酸钡(BBO)晶体中的和频产生。所得和频光束是一个脉冲频率梳,其重复频率与Yb光纤光源相同。使用SNLO仿真软件对结果进行模拟,并为未来在困难光谱区域实现波长转换和调谐的系统设计提供基准。

英文摘要:

Ultrafast optical frequency combs allow for both high spectral and temporal resolution in molecular spectroscopy and have become a powerful tool in many areas of chemistry and physics. Ultrafast lasers and frequency combs generated from ultrafast mode-locked lasers often need to be converted to other wavelengths. Commonly used wavelength conversions are optical parametric oscillators, which require an external optical cavity, and supercontinuum generation combined with optical parametric amplifiers. Whether commercial or home-built, these systems are complex and costly. Here we propose an alternative, simple, and easy-to-implement approach to tunable frequency comb ultrafast lasers enabled by new continuous-wave laser technology. Sum-frequency generation between a Nd:YAG continuous-wave laser and a Yb:fiber femtosecond frequency comb in a beta-barium borate (BBO) crystal is explored. The resulting sum-frequency beam is a pulsed frequency comb with the same repetition rate as the Yb:fiber source. SNLO simulation software was used to simulate the results and provide benchmarks for designing future system to achieve wavelength conversion and tunability in difficult spectral regions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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