Wavelength conversion module
AssigneeFurukawa Electric Co., Ltd.
InventorsMichio OOKUBO, Hiroshi Matsuura
Life of this patent
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Abstract
A wavelength conversion module according to the present invention includes an external resonator, a semiconductor laser module and a wavelength conversion device for converting a wavelength of light output from the semiconductor laser module into a shorter wavelength. This wavelength conversion device includes at least one of a nonlinear crystal for generating SFG (Sum-frequency Generation) light and a nonlinear crystal for generating SHG (Second Harmonic Generation) light. Each of the SFG generating element and the SHG generating element of the wavelength conversion device may have a periodically-poled ridge-waveguide structure or a periodically-poled proton-exchanged-waveguide structure.
Claims12
A wavelength conversion module comprising:
- an external resonator;
- a semiconductor laser module;
- and
- a wavelength conversion device for converting a wavelength of light output from said semiconductor laser module into a shorter wavelength than the wavelength of the light.
Dependencies are inferred from the claim text.