Laser device
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHisashi Minemoto, Yusuke Ozaki, Nobuo Sonoda
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Abstract
A laser device including a wavelength converter of internal resonator type comprises a laser diode 20 for excitation, a light emission section 22 as a solid laser medium excited by the laser 20 and a wavelength converter 23 for converting the wavelength of the laser light from the excited solid laser. The solid laser medium of the light emission section 22 comprises a semiconductor crystal of GaAs, AlGaAs or GaAs-AlGaAs. A second harmonic wave light of a fundamental wave of 0.8 .mu.m band can be easily generated by using a solid laser medium such as a GaAs crystal, an AlGaAs crystal or a superlattice crystal thereof.
Claims22
A laser device comprising:
- a laser diode;
- a solid state laser medium having a first principal plane for receiving a light emitted from the laser diode and a second one for emitting a light excited by the received light;
- an output mirror provided at a side opposite to the first principal plane;
- and
- a wavelength converter for converting a wavelength of the light emitted by the solid state laser medium, which wavelength converter being provided between said solid state laser medium and said output mirror;
- wherein an optical resonator for amplifying the laser light emitted by the solid laser medium is constructed between the first principal plane and said output mirror and said solid state laser medium comprises a III-V compound semiconductor crystal or a II-VI compound semiconductor crystal.
Dependencies are inferred from the claim text.