4.4 Article

Controlled multiwavelength operation of diode-pumped Nd:YAG laser at 1318, 1338 and 1356 nm with intracavity etalon

Journal

LASER PHYSICS LETTERS
Volume 20, Issue 11, Pages -

Publisher

IOP Publishing Ltd
DOI: 10.1088/1612-202X/acfd94

Keywords

multiwavelength laser; diode-side-pumped; pulsed Nd:YAG laser; electro-optic Q-switch; Fabry-Perot etalon

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Dual- and triple-wavelength Nd:YAG lasers with electro-optically Q-switching were demonstrated using an intracavity etalon. The spectral composition of the laser output could be controlled by adjusting the angle of the intracavity YAG etalon. Experimental results matched well with calculated values. The intracavity etalon method provides a way to switch between different wavelength modes.
Dual- and triple-wavelength diode-side-pumped electro-optically Q-switched Nd:YAG laser at 1318.8 nm, 1338.2 nm and 1356.4 nm with an intracavity etalon was demonstrated. The spectral composition of the generation was controlled by the rotation of the intracavity YAG etalon with a thickness of 100 mu m. The experimental values of the tilt angle of the etalon for the laser generation with dual- and triple-wavelength output correspond well to the calculated values. When pumped by the electrical pulses with an energy of 8.7 J, triple-wavelength laser pulses with an energy of 96 mJ, a pulse duration of 37 ns, a peak power up to 2.6 MW and a repetition rate of 100 Hz were obtained. The proposed method of using an intracavity etalon allows to switch the spectral composition of the output radiation of Nd:YAG laser at F-4(3/2) -> I-4(13/2) transition between single-, dual- and triple-wavelength modes.

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