激光器倍频、opa、opo及太赫兹的原理-在激光器中利用非线性晶体，就可以产生shg/thg/fhg倍频、opo光学参量振荡、opa光学参量放大、thz太赫兹等激光，它们的产生原理如上两图所示，就是满足能量守恒原理，其中shg二倍频产生是sf

opo/opa ir Converts Nd:YAG radiation into tunable mid-infrared radiation. Combines 532 nm pumped OPO and 1064 nm pumped OPA to produce tunable radiation from 710-885 nm and from 1.35 to 5 µm using a single set of non-linear crystals.

2024年10月23日 · By employing a holmium:yttrium-aluminum-garnet (Ho:YAG) regenerative amplifier (RA) and multi-stage power amplifiers, we successfully achieved a maximum pulse energy of 26.2 mJ at a wavelength of 2.09 μm. Initially, using a ZGP OPG and a one-stage OPA, we achieved mid-infrared laser output of over 6.4 mJ.

参量振荡器(opo)[7-1],opa具有更简单的结构,不 需要反馈腔长,容易调谐,可以获得更高的能量[ 12-3]和 更宽的增益带宽[ 14-5]。早期opa一般使用千赫兹飞 秒钛宝石放大系统进行泵浦[ 16-8]。近年来,随着高重 复频率掺镱光纤和固体放大技术的成熟,opa的重复

2022年10月19日 · 2020年，Yang等报道了一台8-14μm连续可调谐的高能量皮秒级BGSe-OPA长波红外激光器，BGSe晶体为Ⅰ类相位匹配，泵浦源为重复频率10Hz、脉冲宽度30ps、波长1064nm的Nd:YAG激光器，种子光（信号光）波长为1151-1227nm连续可调谐、能量范围0-200μJ，实验最终得到了脉冲能量140 ...

pumped by kW-class Yb:YAG Innoslab amplifiers or thin-disk lasers APE AVUS is the very latest Optical Parametric Amplifier (OPA) providing widely tunable high-energy pulses.

首先，在理论上对2.1μm的ho:yagmopa以及3-5μm的中波红外opo和opa系统进行了研究。针对ho:yag振荡器的热分布、谐振腔稳定性、不同参数下连续波和调q运转的输出特性等进行了数值模拟计算。同时建立了ho:yag放大器的速率方程，分析了放大器的输出特性。

2025年1月1日 · In this paper, we demonstrated a high-efficiency mid-infrared ZnGeP 2 (ZGP) OPG/OPA system, operating at the mJ-level with hundred-picosecond pulses. The ZGP-based OPG configuration achieved a maximum pulse energy of 1.06 mJ at a repetition rate of 1 kHz, utilizing a pump pulse energy of 2.59 mJ and operating at a central wavelength of 3.9 μm.

We demonstrate a broadband parametric amplifier at 6 μm driven by a femtosecond 2.1-μm Ho:YAG chirped-pulse amplifier. The scheme offers an all-in-one solution for seeding, pumping and CEP stabilization of few-cycle pulses in ZnGeP2 and similar mid-IR crystals.

2009年1月15日 · Efficient conversion into the mid-IR of a low pulse-energy (2.5 mJ) Nd:YAG laser is achieved by cascaded KTiOPO 4 (KTP) and ZnGeP 2 (ZGP) optical parametric oscillators followed by a ZGP optical parametric amplifier.