Abstract: A laser processing apparatus 1 includes a processing light source 3 emitting processing light; an observation light emitting unit 4 emitting observation light; optical fibers 19 conducting light having a plurality of wavelengths generated at an electronic component 2; a detecting unit 5 detecting the light conducted by the optical fibers 19; and a control unit 31 controlling a light emitting state of the processing light emitting unit 3. The optical fibers 19 are categorized into four groups, and disposed so as to surround an optical fiber 18 conducting the processing light. The optical fibers 19 categorized into the four groups are capable of conducting the observation light to the electronic component 2 every group.

Abstract: A metal heating apparatus according to an embodiment of the present invention comprises a light output portion for outputting light having a center wavelength in a wavelength range of 200 nm to 600 nm.

Abstract: There is obtained a laser processing method by which an excellent shape of a cut surface can be achieved and an increase in cost can be suppressed. A laser processing method includes the steps of: preparing a material to be processed; and forming a modified area in the material to be processed, by irradiating the material to be processed with laser beam. In the aforementioned step, pulsed laser beam having a continuous spectrum is focused with a lens, thereby forming a focusing line constituted by a plurality of focuses that are obtained by predetermined bands forming the continuous spectrum of the laser beam, and the material to be processed is irradiated with the laser beam such that at least a part of the focusing line is located on a surface of the material to be processed, thereby forming the modified area on an axis of the focusing line.

Abstract: A laser processing apparatus 1 includes a processing light source 3 emitting processing light; an observation light emitting unit 4 emitting observation light; optical fibers 19 conducting light having a plurality of wavelengths generated at an electronic component 2; a detecting unit 5 detecting the light conducted by the optical fibers 19; and a control unit 31 controlling a light emitting state of the processing light emitting unit 3. The optical fibers 19 are categorized into four groups, and disposed so as to surround an optical fiber 18 conducting the processing light. The optical fibers 19 categorized into the four groups are capable of conducting the observation light to the electronic component 2 every group.

Abstract: An optical splicer 2 according to an embodiment of the present invention has a plurality of optical fibers 6, and an optical splice member 8 having a plurality of fiber holes 14 in each of which a portion including one end 6a of each fiber 6 is inserted, and a mode field diameter W1 in one end 6a of optical fiber 6 is enlarged relative to a mode field diameter W2 in the other portion of optical fiber 6.

Abstract: An object of this invention to transfer the light emitted from the light source and exit the light with a uniform distribution of light quantity, without incurring transfer loss and an increase of costs. In this invention, an optical fiber 11 for irradiation-light transfer of a single major optical fiber element composed of a core 12 and a clad 13 is bent in its intermediate region in an annular shape to form an annular portion 14. The crossing zone at the annular portion is fixed by a fixing member 15. By incidenting light from its incidence terminal 11a, variations in the distribution of light quantity are eliminated at the annular portion 14 so that the light with distribution of light made uniform is exited from an exit terminal 11b.

Abstract: An object of this invention to transfer the light emitted from the light source and exit the light with a uniform distribution of light quantity, without incurring transfer loss and an increase of costs. In this invention, an optical fiber 11 for irradiation-light transfer of a single major optical fiber element composed of a core 12 and a clad 13 is bent in its intermediate region in an annular shape to form an annular portion 14. The crossing zone at the annular portion is fixed by a fixing member 15. By incidenting light from its incidence terminal 11a, variations in the distribution of light quantity are eliminated at the annular portion 14 so that the light with distribution of light made uniform is exited from an exit terminal 11b.

Abstract: An optical splicer 2 according to an embodiment of the present invention has a plurality of optical fibers 6, and an optical splice member 8 having a plurality of fiber holes 14 in each of which a portion including one end 6a of each fiber 6 is inserted, and a mode field diameter W1 in one end 6a of optical fiber 6 is enlarged relative to a mode field diameter W2 in the other portion of optical fiber 6.

Abstract: There are provided a substantially cylindrical optical component, a method for connecting the same, and an optical module having the optical component, whereby adequate gripping force can be exerted during positioning or fixing, and the position in the azimuthal angle about the cylinder axis can be easily aligned. The optical component comprises a substantially cylindrical elongated member, an outer peripheral portion of which includes a cylindrical portion and a side plane portion that has a flat surface, the flat surface being parallel to a central axis to the elongated member. The optical module is composed of a planar light circuit device connected to a rod lens or capillary. With the method for connecting the optical component, the optical component of the present invention is positioned using the side plane portion as a reference, and is connected to another optical component.

Abstract: There are provided a substantially cylindrical optical component, a method for connecting the same, and an optical module having the optical component, whereby adequate gripping force can be exerted during positioning or fixing, and the position in the azimuthal angle about the cylinder axis can be easily aligned. The optical component comprises a substantially cylindrical elongated member, an outer peripheral portion of which includes a cylindrical portion and a side plane portion that has a flat surface, the flat surface being parallel to a central axis to the elongated member. The optical module is composed of a planar light circuit device connected to a rod lens or capillary. With the method for connecting the optical component, the optical component of the present invention is positioned using the side plane portion as a reference, and is connected to another optical component.

Abstract: To provide an optical device whereby the optical characteristics of a lightwave circuit element can be varied with low power consumption. There is provided an optical device comprising a lightwave circuit element having one or plurality of optical waveguides, and also having a refractive index adjusting portion composed of resin located in the one or plurality of optical waveguides and/or in a portion of the area in the one or plurality of optical waveguides. The lightwave circuit element comprises an adjustment-light waveguide for guiding adjustment light that varies the refractive index of the resin, and directing the adjustment light to the adjusting portion.

Abstract: There are provided a substantially cylindrical optical component, a method for connecting the same, and an optical module having the optical component, whereby adequate gripping force can be exerted during positioning or fixing, and the position in the azimuthal angle about the cylinder axis can be easily aligned. The optical component comprises a substantially cylindrical elongated member, an outer peripheral portion of which includes a cylindrical portion and a side plane portion that has a flat surface, the flat surface being parallel to a central axis to the elongated member. The optical module is composed of a planar light circuit device connected to a rod lens or capillary. With the method for connecting the optical component, the optical component of the present invention is positioned using the side plane portion as a reference, and is connected to another optical component.

Abstract: Provided is a semiconductor laser device having an economical structure in which the replacement of a semiconductor laser module is easy and in which the occurrence of dew condensation can be prevented while the increase in the lifetime as well as the stabilization and high output of laser output can be accomplished. The semiconductor laser device comprises semiconductor laser modules; a container main body which accommodates the semiconductor laser modules and which has an opening for taking out a semiconductor laser module outside; a lid provided at the opening in an openable and closable manner; and a means for cooling the semiconductor laser modules.

Abstract: A metal heating apparatus according to an embodiment of the present invention comprises a light output portion for outputting light having a center wavelength in a wavelength range of 200 nm to 600 nm.

Abstract: To provide an optical device whereby the optical characteristics of a lightwave circuit element can be varied with low power consumption. There is provided an optical device comprising a lightwave circuit element having one or plurality of optical waveguides, and also having a refractive index adjusting portion composed of resin located in the one or plurality of optical waveguides and/or in a portion of the area in the one or plurality of optical waveguides. The lightwave circuit element comprises an adjustment-light waveguide for guiding adjustment light that varies the refractive index of the resin, and directing the adjustment light to the adjusting portion.

Abstract: An optical switch is provided with an optical-fiber-arraying-member 1 in which a plurality of optical fiber fixing grooves 1a extending along radial directions of a virtual circle are radially formed in a predetermined surface of a base material, a plurality of array-side optical fibers 2 arrayed in the plurality of optical fiber fixing grooves 1a of the optical-fiber-arraying-member 1, and a moving-side optical fiber 4 to be selectively optically connected to either of the plurality of array-side optical fibers 2; the moving-side optical fiber 4 and the optical-fiber-arraying-member 1 are rotated relative to each other about a center axis 1o of the virtual circle, and the moving-side optical fiber 4 is selectively optically connected to the array-side optical fiber 2 selected.

Abstract: An optical splicer 2 according to an embodiment of the present invention has a plurality of optical fibers 6, and an optical splice member 8 having a plurality of fiber holes 14 in each of which a portion including one end 6a of each fiber 6 is inserted, and a mode field diameter W1 in one end 6a of optical fiber 6 is enlarged relative to a mode field diameter W2 in the other portion of optical fiber 6.

Abstract: An optical switch is provided with an optical-fiber-arraying-member 1 in which a plurality of optical fiber fixing grooves 1a extending along radial directions of a virtual circle are radially formed in a predetermined surface of a base material, a plurality of array-side optical fibers 2 arrayed in the plurality of optical fiber fixing grooves 1a of the optical-fiber-arraying-member 1, and a moving-side optical fiber 4 to be selectively optically connected to either of the plurality of array-side optical fibers 2; the moving-side optical fiber 4 and the optical-fiber-arraying-member 1 are rotated relative to each other about a center axis 1o of the virtual circle, and the moving-side optical fiber 4 is selectively optically connected to the array-side optical fiber 2 selected.

Abstract: An optical switch is provided with an optical-fiber-arraying-member 1 in which a plurality of optical fiber fixing grooves 1a extending along radial directions of a virtual circle are radially formed in a predetermined surface of a base material, a plurality of array-side optical fibers 2 arrayed in the plurality of optical fiber fixing grooves 1a of the optical-fiber-arraying-member 1, and a moving-side optical fiber 4 to be selectively optically connected to either of the plurality of array-side optical fibers 2; the moving-side optical fiber 4 and the optical-fiber-arraying-member 1 are rotated relative to each other about a center axis 1o of the virtual circle, and the moving-side optical fiber 4 is selectively optically connected to the array-side optical fiber 2 selected.

Abstract: This invention relates to a process for producing stigma-like tissues of saffron in a large scale by cutting the tissues of stigma (c), style (d, e, f), ovary (h, i, k), ovule (j), and petal (r) of saffron flower, and subculturing them on a liquid or solid LS medium or B5 medium containing a cytokinin and an auxin as main hormones.