Mid-IR Dual-Wavelength Difference Frequency Generation Using Fiber Lasers as Pump and Signal Light Sources

Mid-IR Dual-Wavelength Difference Frequency Generation Using Fiber Lasers as Pump and Signal Light Sources
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使用光纤激光器作为泵浦光源和信号光源产生中红外双波长差频

DOI:
10.1088/0256-307x/26/12/124214
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发表时间:
2009-12
期刊:
影响因子:
1.6
通讯作者:
Mao Qing-He
Mao Qing-He
中科院分区:
地球科学4区
文献类型:
--
作者:
Feng Su-Juan;Chang Jian-Hua;Jiang Jian;Liu Wen-Qing;Mao Qing-He

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介绍了一种连续波中红外差频激光光源,该光源分别以掺Yb3+光纤激光器为泵浦源,以级联掺铒光纤放大器级联的多波长掺铒光纤激光器为信号源。实验结果表明,通过适当设置泵浦方向和信号偏振方向,可以同时发射两条稳定的、间距约为5.4 nm的中红外辐射线。中红外辐射线的数目受准相位匹配接收带宽的限制。通过改变PPMgLN的温度,可以在3295~3356.3 nm的中红外范围内同步调谐两条中红外辐射线。
A continuous-wave mid-IR difference frequency laser source, which respectively uses an ytterbium-doped fiber laser as the pump source and a multiwavelength erbium-doped fiber laser cascaded with an erbium-doped fiber amplifier as the signal source, is demonstrated. Our experimental results show that two stable mid-IR radiation lines with a spacing of about 5.4 nm may be simultaneously emitted by a suitable setting the pump and signal polarization orientations. The number of the mid-IR radiation lines is limited by the quasi-phase-matching acceptance bandwidth. By changing the PPMgLN temperature the two mid-IR radiation lines may be synchronously tuned in the mid-IR range between 3295 and 3356.3 nm.
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