Passively Q-switched Nd:YVO_4 laser with greater than 11W average power

Abstract

This paper presents the highest average power passively Q-switched Nd:vanadate laser, to the best of our knowledge. A maximum average output power greater than 11 W was demonstrated using a Nd:YVO4 bounce geometry laser operating at 1064 nm in TEM00 mode, with a spatially stigmatic design. Pulse energies greater than 58 µJ and peak powers in excess of 1.9 kW were obtained; the maximum repetition rate recorded was 190 kHz, close to the upper limit achievable with Cr4+:YAG saturable absorbers.

Advances in vanadate laser crystals at a lasing wavelength of 1 micrometer

“…However, the relatively lower thermal conductivity along the a ‐axis constrains the applications in high‐power end‐pumped lasers in which the generated heat is mainly transferred by the side surfaces. Up to now, the highest maximum average output power is 11W and the highest peak power is greater than 100 kW in the passively Q‐switched lasers without microchip configurations.…”

A vanadate-based white light emitting luminescent material for temperature sensing

“…The energy of the excited electrons is partially transferred to Eu 3+ ions, and emitted red light by the wellknown 5 D 0 / 7 F J transitions of Eu 3+ ions. The residual energy emitted yellow-green light by 3…”

“…In recent years, photoluminescent materials have attracted great interest as irreplaceable lighting devices in the area of eld emission displays (FEDs), plasma display panels (PDPs), X-ray detectors, and white-light emitting diodes (w-LEDs), due to their excellent luminous efficiency and energy saving properties. [1][2][3][4][5] Among a lot of luminescent materials, rare-earth ion doped phosphors have been extensively studied and considered as potential light source materials. 6,7 Many compounds have been applied as the matrix materials for rare-earth ions, including zinc oxides, uorides, aluminates, silicates, zirconates, vanadates, molybdates, and phosphates.…”

Side-pumped neodymium laser with self-adaptive, nonreciprocal cavity

“…The pump radiation was tightly focused by means of a single cylindrical lens (f = 50 mm). Resulting excited volume in the active medium was 14.3×0.25×4 mm 3 . The emission wavelength stabilized at 25°C was measured to be 808 nm (FWHM = 2.4 nm).…”

“…Additionally, it significantly degrades the spatial quality and decreases the overall performance of the laser system. There are several techniques, i.e., injection−seeding [1,2], grazing−incidence−angle [3,4] or self−adaptive resona− tors based on phase conjugation via gain saturation mecha− nism [5][6][7][8][9][10][11][12][13][14][15], that allow to generate near−diffraction−limited beam output in the presence of a high inhomogeneity of the gain spatial profile. In this paper we demonstrate the results of a self−adaptive Nd:YAG laser with intra−cavity amplifier with an open−loop, nonreciprocal cavity containing phase conjugate mirror.…”