Q-Switched Operation of Microchip Laser Composite Cavities

今天的许多应用通常要求激光系统能够在很短的时间间隔内提供准确的峰值功率。这些应用的例子包括测距，激光钻孔和切割，以及材料光学特性的研究。实现这一目标的一种方法是对二极管泵浦固体激光器进行q开关。有不同的方法来Q开关激光，基本的方法是抑制激光的场建立在激光腔内，然后倾倒所有的功率在一个单一的脉冲。大多数Q开关方法都受到低重复率和高系统成本的限制。本方案提出对短腔Yb:YAG微芯片激光器进行q开关，开发出工作波长为1.029 nm的随机时间编码极短脉冲激光器，可实现低成本量产。

Many applications today often require laser systems that can deliver an accurate amount of high peak power in a very short time interval. Examples of these applications include range finding, laser drilling and cutting, and studies of optical properties of materials. One method of achieving this is to Q-switch a diode-pumped solid-state laser. There are different ways to Q- switch a laser, the fundamental approach being to suppress lasing as the field builds within the laser cavity, then to dump all the power in a single pulse. Most Q- switching methods are limited by low repetition rates and high system cost. This program proposes to Q-switch a short cavity Yb:YAG microchip laser to develop a random time-encoded, very short pulse laser operating at 1.029 nm which can be mass-produced at low cost.