| 摘要 |
By using a ceramics laser medium such as Nd:YAG ceramics or Yb:YAG ceramics, division of a lateral mode pattern to a local mode is suppressed so that single frequency, linear polarization oscillation are achieved in TEM00 mode. A laser oscillator comprising a laser light source for oscillating the pumping light, and a laser medium of Nd:YAG ceramics or Yb:YAG ceramics having an average grain size of 5 μm or less upon which the pumping light impinges is provided. The laser medium may have a first surface having a first dielectric multilayer film, and a second surface having a second dielectric multilayer film.
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