Light source apparatus
AssigneeUshio Denki Kabushiki Kaisha
InventorsTakuma Yokoyama, Aya Ota
Life of this patent
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Abstract
A light source apparatus generates wavelength scanning light. A pulsed light source generates pulsed light including a continuous spectrum. An optical divider spatially divides the broadband pulsed light L into a plurality of n (n≥2) beams according to wavelengths. A plurality of n fibers give different delays to the n beams. The coupler multiplexes n beams output from the n fibers. In the light source apparatus, at least a part from an incident end of the optical divider to emission ends of the n fibers has a continuous waveguide structure. A light monitoring device extracts and measures part of light propagating through the continuous waveguide structure.
Claims14
A light measurement device comprising:
- a light source apparatus structured to generate wavelength scanning light to be irradiated onto an object;
- and
- a light receiving device structured to measure object light obtained by irradiating the object with the wavelength scanning light,
- wherein the light source apparatus comprises:
- a pulsed light source structured to generate pulsed light including a continuous spectrum;
- an optical divider structured to spatially divide the pulsed light into n portions of light (n≥2) according to wavelengths;
- a plurality of n fibers structured to provide different delays to the n portions of light;
- and
- a coupler structured to combine the n portions of light output from the n fibers, wherein
- the light output from the coupler is irradiated onto the object as the wavelength scanning light,
- at least a portion from an incident end of the optical divider to an emission ends of the n fibers is formed of a continuous waveguide structure, and
- wherein the light source apparatus further comprises a light monitoring device structured to extract and measure part of light propagating through the continuous waveguide structure.
Dependencies are inferred from the claim text.