| 摘要 |
A laser light source having a semiconductor laser light source which emits a laser beam, a laser medium excited by the semiconductor laser light source to emit light, two reflectors configured to work as a resonator to confine the light emitted by the laser medium, and a holder which holds the laser medium, wherein stress is generated in the laser medium formed of a ceramic material situated in the resonator so as to control a polarization direction of the light emitted by the laser medium.
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