Multiwavelength Mid-Infrared Laser Generation Based on Optical Parametric Oscillation and Intracavity Difference Frequency Generation

We report a multiwavelength mid-infrared laser based on intracavity difference frequency generation in an MgO-doped periodically poled LiNbO<sub>3</sub> optical parametric oscillator, which was pumped by a dual-wavelength fiber MOPA consisting of two parts: dual-wavelength seed and power...

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Bibliographic Details
Main Authors: Peng Wang, Yaping Shang, Xiao Li, Meili Shen, Xiaojun Xu
Format: Article
Language:English
Published: IEEE 2017-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/7765071/
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Summary:We report a multiwavelength mid-infrared laser based on intracavity difference frequency generation in an MgO-doped periodically poled LiNbO<sub>3</sub> optical parametric oscillator, which was pumped by a dual-wavelength fiber MOPA consisting of two parts: dual-wavelength seed and power amplifier. The maximum output power of the linearly polarized pump laser was 65.3&#x00A0;W, and the wavelengths were 1060 and 1080&#x00A0;nm. Three idler emissions with different wavelengths of 3127, 3303 and 3346&#x00A0;nm were obtained under the maximum pump power, and the total idler output reached 7.38&#x00A0;W, indicating a 15&#x0025; pump-to-idler slope efficiency. The signal laser generated in the experiment had two wavelengths, which were 1594 and 1604&#x00A0;nm under the maximum pump power. Three nonlinear progresses occurred in the experiment, two of them being optical parametric oscillation and the one left being difference frequency generation.
ISSN:1943-0655