Abstract

In this study, a method is proposed to measure the spatial properties of laser emissions in the range of 2.0 µm. The infrared emission spectrum is first converted into a spectrum in the visible range using a fluorozirconate ZBLAN:Ho³⁺ glass sample. Subsequently, the converted emission is detected using a Pulnix TM-7CN CCD camera and the laser beam image is numerically processed using a specialized software package in the LabVIEW environment. This enables the measurement of intensity distribution over the beam cross-section of the diode-pumped CW YAP:Tm³⁺ laser emitting at 1.94 µm. The beam quality factor, M², is also evaluated.

© 2020 Optical Society of America

Single-pulse laser beam quality measurements using a CCD camera system

J. A. Ruff and A. E. Siegman
Appl. Opt. 31(24) 4907-4909 (1992)

113 W Ho:YLF oscillator with good beam quality efficiently pumped by a Tm:YAP laser

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Diode-pumped Tm:YAP laser operating at 2.3 µm with enhanced performance through cascade lasing

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Thermal, spectroscopy and optimized ∼3 µm CW laser properties for Ho,Pr:YAP crystal

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Efficient 1.94-μm Tm³⁺ laser in YVO₄ host

H. Saito, S. Chaddha, R. S. F. Chang, and N. Djeu
Opt. Lett. 17(3) 189-191 (1992)