CW‐LD pumped acousto‐optic Q‐switched Nd:YVO₄ laser

Abstract

A high-power continuous-wave (CW) laser-diode (LD

Repetitive frequency broad tunable high beam quality 1064 nm laser

“…In 2003, Garcia-Lopez JH et al used 808 nm side-pumped Nd:YVO4 slats with a slightly incident resonant cavity structure to achieve a high-efficiency Q-tuned output of 16 W at a repetition frequency of 500 kHz and a pulse width of 15 ns [3]. In 2004, Huang et al used 808 nm pumped Nd:YVO4 crystals with acousto-optic Q-switch to achieve a laser output of 5.72 W at 50 kHz [4]. In 2007, Zhang TL et al used a four-mirror toroidal cavity with a standard tool inserted in it to obtain 9 W of 1064 nm single-frequency output in continuous operation mode using 808 nm pumped Nd:YVO4 [5].…”

Large-Size Crystal Growth and a Fiber-Coupled Acousto-Optic Device of TiTe3O8

“…Due to a compact cavity, easy to achieve high-energy output, and low cost, the fiber lasers have been developed rapidly and widely used in optical communication, remote sensing, laser medicine, gas detections, etc. − The acousto-optic Q-switch is an important active optical modulation in the time domain, exhibiting low modulation voltage, high extinction ratio, and good stability. − The fiber acousto-optic Q-switch, , which can ensure an all-fiber structure, is usually used to generate high-energy pulse fiber lasers. , Compared with free space lasers, the polarization lasers have advantage in the fields of optical fiber sensing, signal processing, and coherent detection. − When the polarization laser propagates through the acousto-optic Q-switch without polarization-maintaining ability, the continuous laser can be changed to pulse laser. However, the depolarization of the laser will generate due to the birefringence of acousto-optic crystals.…”