Multirod resonators for high-power solid-state lasers with improved beam quality

A Single Rod Stable Resonator of Constant Multimode Divergence over a Wide Power Range

“…However, points (a) and (b) are fundamentally in contradiction, as previously reported by Weber and co-workers [9,10] . Assuming (in a first-order approximation) a linear dependence of the dioptric power D on the output power Po,,,, a simple relation lies between the maximum value of the beam parameter product (0m 0) m)max and the stable range of dioptric power AD :…”

“…Furthermore, its implementation in powerful multirod resonators is quite adapted and gives the best compromise between efficiency, output power range and beam parameter product [10] .…”

Four-Dimensional Thermal Analysis of 888 nm Pumped Nd:YVO4 Dual-Rod Acousto-Optic Q-Switched Laser

“…The value of S is a very tiny at about 10 −11 order in this system according to previous research [22]. Equations (12) and (13) are used for solving the power distributions in crystals. Actually, the speed of light is much larger than the speed of producing a Q-switched pulse.…”

“…Using dual-rod or multi-rod is an effective way to upgrade output power in a solid-state laser [11,12]. In 2010, Yan et al [13] used a dual-rod scheme in acousto-optic Q-switched 808 nm pumped Nd:YVO 4 and Nd:YAG lasers and made the comparative…”

Computer simulation of thermal focal length of laser crystal and thermally-near-unstable resonator

“…The use of a multirod solid-state laser system is one of the most promising approaches to generating a high-power laser beam, at high beam quality, with a wide range of output power [1]. However, when the laser runs at high pump power, thermal lens of every rod induces variations of output beam parameters that could limit the design and operation of solid-state laser devices such as the stability of, width of lasing mode and the beam quality.…”