Double-Peaked Mid-Infrared Generation Based on Intracavity Difference Frequency Generation
Source abstract
Abstract
It was reported that a double-peaked mid-infrared laser was generated based on an intracavity difference frequency generation (DFG). The double-peaked pump source was achieved by suppressing the intensity at the central wavelength of the pump source. The double-peaked mid-infrared generation had a double-peaked spacing of 23–37 nm, and the full width at half-peak (FWHM) of the peaks was up to 30 nm. It was demonstrated that a tilted Bragg fiber grating (TFBG) with a specific transmission spectral depth and bandwidth can generate a double-peaked mid-infrared laser with controllable double-peaked spacing. It was the first generation of a double-peaked mid-infrared laser based on a near-infrared pumping spectral modulation. Furthermore, the double-peaked mid-infrared generation was tunable, and the FWHMs of the peaks were controllable by an intracavity DFG. It had a high potential for the monitoring and absorption of gas molecules by differential absorption lidar (DIAL).
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Research context
OpenAlex topics: Advanced Fiber Laser Technologies · Spectroscopy and Laser Applications · Photonic and Optical Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
Nanhu Laser Laboratory, National University of Defense Technology, Changsha 410073, China
Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha 410073, China
Funding
National Natural Science Foundation of China · Project 2019-JCJQ-JJ-202 and Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology, Electronic Countermeasure Institute, National University of Defense Technology
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