定义：
只包括固态器件的激光器系统，尤其是不包含放电灯或者气体或者染料的激光器。

全固态激光器是指不仅增益机制，而且泵浦光源都是固态的激光器。固态激光器（体或者光纤激光器）是由激光二极管泵浦的（参阅二极管泵浦激光器）。不包括灯泵浦激光器，染料激光器和气体激光器。 
在很多激光器的实际应用中，都需要采用全固态激光器，因为这种激光器体积小，装置稳定，具有较高的电光转换效率，同时对冷却的要求较低，寿命很长。它们通常也具有更低的激光器噪声。

Definition: laser systems containing solid-state devices only, in particular no discharge lamps or gas or dye lasers

More general term: solid-state lasers

All-solid-state lasers are lasers which rely on solid-state components not only concerning the gain medium, but also the pump source. Such lasers are solid-state lasers (bulk or fiber lasers) pumped with laser diodes (→ diode-pumped lasers), or pure semiconductor lasers. Excluded are e.g. lamp-pumped lasers, dye lasers, and gas lasers.

Figure 1: Setup of a typical end-pumped solid-state laser.

For many practical laser applications, it is desirable to work with all-solid-state lasers, because they can have a robust and compact setup, a relatively high wall-plug efficiency and correspondingly low cooling requirements, and a long lifetime. They also often exhibit lower laser noise than lamp-pumped lasers, for example.

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