Pr:YAlO3 microchip laser at 662 nm

Abstract

A continuous‐wave Pr:YAlO3 microchip laser operation at 662 nm is reported. Microchip resonator was formed by dielectric mirrors directly coated on the Pr:YAlO3 crystal front surfaces. GaN laser diode providing up to 1 W of output power at ∼448 nm was used as a pumping source. Output characteristics were investigated at different active medium temperature within the range of 11–35°C. The best result 27.4 mW of output power has been reached at 11°C at 680 mW of pumping power. The slope efficiency related to the incident pumping power was ∼9%. (© 2011 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA) (© 2011 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)

Diode-pumped Pr:YAP lasers

“…Laser output characteristics in single [28], folded (for wavelength tuning) [29], and microchip [30,31] resonator arrangement are summarized, as well as efficient frequency-doubling of fundamental wavelength resulting in the blue emission at 373.5 nm [32].…”

Spectroscopic and lasing properties of Pr:YAlO3material at cryogenic temperature

“…Moreover, in comparison with the most prominent Pr-doped fluoride crystals, Pr:YAlO 3 exhibits positive value of the temperature coefficient dn/dT which can allow for a microchip laser geometry to be easily employed. 10,11 This geometry is in general very attractive because of its compact and rugged design combined with the potential for high efficiency and good beam quality. So, Pr 3+ -ions doped YAlO 3 matrix provide a great potential for realizing compact and efficient laser sources suitable for various applications in industry (color-display and data storage technology), spectroscopy, fluorescence microscopy, and medicine.…”

Cryogenically cooled Pr:YAlO3laser operating at 747 nm, 662 nm, and 622 nm wavelengths

“…Moreover, in comparison with the most prominent Pr-doped fluoride crystals, Pr:YAlO 3 exhibits a positive value of the temperature coefficient dn/dT which can allow for a microchip laser geometry to be used. 11,12 Diode-pumped Pr:YAlO 3 laser operation has been described in the green (547 nm), red (662 nm), deep red (720 nm), and near infra-red (747 nm) spectral region (see Fig. 1).…”