CW optical parametric oscillator for the mid-IR range

IF 0.9 4区 工程技术 Q3 Engineering
M. Yakovin, P. Chapovsky
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引用次数: 1

Abstract

We report the development of a cw optical parametric oscillator (OPO) for the mid-IR range. The oscillator uses a 50-mm long periodically poled lithium niobate crystal in a ring resonator. The OPO is pumped by an ytterbium fibre laser with a wavelength of 1.064 μm. At a pump power of 10 W, the OPO generates continuous radiation with a wavelength of 3.6 μm and a power of 2.8 W. The pump power depletion in the OPO is 94 %. The idler wave frequency of the OPO is stabilised using a precision laser wavelength meter. The rms error of the idler wave frequency in the stabilisation regime is 3 MHz. A simple theoretical model for the operation of a cw OPO is proposed, based on an empirical characteristic of the OPO, i.e., the pump depletion, and on a quantum description of three interacting light waves. The power characteristics of the operating OPO are in good agreement with those predicted by the theoretical model.
中红外波段的连续波光学参量振荡器
我们报道了一种用于中红外波段的连续波参量振荡器(OPO)的研制。振荡器在环形谐振器中使用50毫米长的周期性极化铌酸锂晶体。OPO由波长为1.064 μm的镱光纤激光器泵浦。当泵浦功率为10w时,OPO可产生波长为3.6 μm、功率为2.8 W的连续辐射。在OPO中,泵的功率损耗为94%。使用精密激光波长计稳定OPO的空闲波频率。稳定区闲散波频率的均方根误差为3mhz。基于OPO的经验特性,即泵浦耗竭,以及三个相互作用光波的量子描述,提出了一个简单的连续OPO运行理论模型。运行OPO的功率特性与理论模型预测的结果吻合较好。
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来源期刊
Quantum Electronics
Quantum Electronics 工程技术-工程:电子与电气
CiteScore
3.00
自引率
11.10%
发文量
95
审稿时长
3-6 weeks
期刊介绍: Quantum Electronics covers the following principal headings Letters Lasers Active Media Interaction of Laser Radiation with Matter Laser Plasma Nonlinear Optical Phenomena Nanotechnologies Quantum Electronic Devices Optical Processing of Information Fiber and Integrated Optics Laser Applications in Technology and Metrology, Biology and Medicine.
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