Author Affiliations
Abstract
1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2 IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
3 Tongji University, Shanghai 200092, China
A geometry of transient-grating self-referenced spectral interferometry (TG-SRSI) is proposed for weak femtosecond pulse characterization. By using a reflective microscope objective (RMO), we build a compact, robust, and easy to adjust device with a higher sensitivity to pulse energy in comparison to all previous SRSI methods. A 65 nJ/～40 fs/1 kHz pulse at 800 nm is successfully characterized, which speaks to the capability of our device to characterize a weak pulse. It is expected to extend the TG-SRSI method to the characterization of femtosecond pulses from oscillators in the near future.
190.4380 Nonlinear optics, four-wave mixing 230.0040 Detectors 320.7100 Ultrafast measurements Chinese Optics Letters
2015, 13(8): 081901
Author Affiliations
Abstract
1 State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800, China
2 IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
The generation of multicolored sidebands with the spectrum from 377 to 970 nm in a 0.5-mm-thick N-WG280 Schott glass based on a cascaded four-wave mixing (CFWM) process is demonstrated. The experimental setup is compact and economical. A pulse with a broadened spectrum from 670 to 900 nm is generated by utilizing two 0.18-mm-thick fused silica glass plates and is used to provide two input beams for the CFWM process. The new frequency components generated from the self-phase modulation effect in the two thin glass plates contribute to the broadening of the total spectral range of the generated multicolored sidebands.
Nonlinear optics Nonlinear optics four-wave mixing four-wave mixing Ultrafast nonlinear optics Ultrafast nonlinear optics Photonics Research
2015, 3(5): 05000210
中国科学院上海光学精密机械研究所 强场激光物理国家重点实验室， 上海 201800
飞秒脉冲测量是飞秒激光技术中一项重要技术。介绍了最近出现的一种简单、高性能的飞秒脉冲测量新方法，即自参考光谱干涉测量法。对其研究现状和进展情况做了综述，并详细分析和比较了基于三种三阶非线性效应（交叉偏振波、自衍射、瞬态光栅）的自参考光谱干涉方法的优缺点，为以后相关的研究和应用提供一个综合性的参考。
超快光学 飞秒脉冲 自参考光谱干涉 交叉偏振波 自衍射 瞬态光栅 激光与光电子学进展
2014, 51(1): 010001
