US 2023/0333010 A1Published application

Light source apparatus

AssigneeUshio Denki Kabushiki Kaisha

InventorsTakuma YOKOYAMA, Aya OTA

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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.

Claims15

Dependent claims

A light source apparatus structured to generate wavelength scanning light, the light source apparatus comprising:

a pulsed light source structured to generate pulsed light including a continuous spectrum;
an optical divider structured to spatially divide the pulsed light into a plurality of n (n 2) beams according to wavelengths;
a plurality of n fibers structured to give different delays to the n beams;
and
a coupler structured to multiplex the n beams output from the n fibers, wherein
at least a part from an incident end of the optical divider to an emission ends of the n fibers has a continuous waveguide structure,
the light source apparatus further comprising a light monitoring device structured to extract and measure part of light propagating through the continuous waveguide structure.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/300,219Filed 13 Apr 2023
Priority: JP 2022-06788615 Apr 2022
Published: 19 Oct 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

G01J 3/32
Measuring the intensity of spectral lines directly on the spectrum itself: investigating bands of a spectrum in sequence by a single detector
G01N 21/31
Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands:…
G01J 3/0218
Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows: using optical fibers
G01J 3/024
Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows: using means for illuminating a slit efficiently

Family

US 12,523,596 B2Related patent
US 2023/0333010 A1This patent

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