| 摘要 |
A laser ray wavelength modification apparatus that includes a semiconductor laser element, a fundamental wave light reflecting element, a wavelength modification element, a selective reflection member and a dichroic mirror. The selective reflection member permits fundamental wave light among light rays emitted from the wavelength modification element to pass through to the fundamental wave light reflecting element while reflecting the wavelength modification light. The dichroic mirror is arranged between the semiconductor laser element and the wavelength modification element. The dichroic mirror transmits the fundamental wave light and removes by reflection out the wavelength modification light.
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