超短パルスレーザでの透明材料処理

    公开(公告)号:JP2015091606A

    公开(公告)日:2015-05-14

    申请号:JP2014258750

    申请日:2014-12-22

    Abstract: 【課題】透明材料をスクライビングないし溶接する方法を提供する。【解決手段】透明材料をスクライブするため、材料を横切るレーザビームのシングルパスで多重スクライブ造作を創るために、超短レーザパルスを使用し、該スクライブ造作の少なくとも一つは材料の表面下に形成され、クリーンな割断を可能にする。透明材料を溶接するための方法は、局在化された加熱を通して接合を創り出すために、超短レーザパルスを使用する。超短パルス持続時間は、レーザ放射の非線形吸収を起こし、レーザの高繰り返し率は、材料内に熱のパルスからパルスへの蓄積を起こす。レーザは材料の界面近くに集光され、溶接されるための領域に高エネルギーフルーエンスを生成し、材料の残部への損傷を最小化し、きれいな溶接線を可能にする。【選択図】図1a

    Method of manufacturing p-type semiconductor zink oxide film, and method of pulse laser deposition using transparent substrate
    3.
    发明专利
    Method of manufacturing p-type semiconductor zink oxide film, and method of pulse laser deposition using transparent substrate 有权
    制造P型半导体氧化锌膜的方法和使用透明衬底的脉冲激光沉积方法

    公开(公告)号:JP2014040666A

    公开(公告)日:2014-03-06

    申请号:JP2013177698

    申请日:2013-08-29

    CPC classification number: C23C14/22 C23C14/083 C23C14/28

    Abstract: PROBLEM TO BE SOLVED: To disclose a p-type semiconductor zinc oxide (ZnO) film, and a method of manufacturing the film.SOLUTION: The film is simultaneously added with phosphorus (P) and lithium (Li). A light path of a pulse laser is arranged so that the pulse laser comes in a substrate from the rear side of the substrate, passes through the substrate and condenses on a target. The substrate is subject to translation movement toward the target, and this arrangement enables deposition of a fine pattern using an ablation plume route. The ablation plume route is present in a one-dimensional transition stage along a normal vector of the target before an angle width of the plume expands in three-dimensional adiabatic expansion. A fine film deposition pattern having a size similar to a laser condensation spot is thus obtained, and a new method of direct film deposition on a patterned material is obtained.

    Abstract translation: 要解决的问题:公开一种p型半导体氧化锌(ZnO)膜及其制造方法。溶液:同时添加磷(P)和锂(Li)。 布置脉冲激光器的光路,使得脉冲激光从基板的后侧进入基板,通过基板并在目标上冷凝。 基板经历朝向目标的平移运动,并且这种布置使得能够使用消融羽流路线沉积精细图案。 在羽流的角度宽度在三维绝热膨胀之前,消融羽流路线沿着目标的法向矢量存在于一维过渡阶段中。 因此获得具有与激光凝聚点相似的尺寸的精细的膜沉积图案,并且获得了在图案化材料上直接成膜的新方法。

    Optical amplification system
    4.
    发明专利
    Optical amplification system 有权
    光放大系统

    公开(公告)号:JP2013055362A

    公开(公告)日:2013-03-21

    申请号:JP2012274588

    申请日:2012-12-17

    Abstract: PROBLEM TO BE SOLVED: To increase the energy storage potential in an optical fiber amplifier and to produce peak power and pulse energy which are higher than those achievable in single-mode (SM) fibers before the onset of undesirable nonlinearity and gain saturation.SOLUTION: An optical amplification system comprises: a fiber oscillator 10 as a laser source generating an input beam having a nearly diffraction limited mode; a multi-mode fiber amplifier 12; a mode converter 14 receiving the input beam and converting the mode of the input beam to match a fundamental mode of the multi-mode fiber amplifier 12, and providing a mode-converted input beam to the multi-mode fiber amplifier 12; and a pump source 20 optically pumping the multi-mode fiber amplifier 12 to generate an intense amplified beam substantially in the fundamental mode.

    Abstract translation: 要解决的问题:为了增加光纤放大器中的能量存储电位,并产生比在单模(SM)光纤中可达到的不期望的非线性和增益饱和之前可实现的峰值功率和脉冲能量高的峰值功率和脉冲能量 。 解决方案:光放大系统包括:光纤振荡器10,作为产生具有接近衍射限制模式的输入光束的激光源; 多模光纤放大器12; 模式转换器14接收输入光束并转换输入光束的模式以匹配多模光纤放大器12的基本模式,并将模式转换的输入光束提供给多模光纤放大器12; 并且泵浦光源20光学地泵浦多模光纤放大器12以产生基本上处于基本模式的强放大光束。 版权所有(C)2013,JPO&INPIT

    Processing of transparent material by ultra-short pulse laser
    5.
    发明专利
    Processing of transparent material by ultra-short pulse laser 有权
    通过超短脉冲激光加工透明材料

    公开(公告)号:JP2013031879A

    公开(公告)日:2013-02-14

    申请号:JP2012194091

    申请日:2012-09-04

    Abstract: PROBLEM TO BE SOLVED: To provide a method for scribing or welding a transparent material.SOLUTION: Ultra-short laser pulse is used for scribing a transparent material and to create a multiple scribe features by the single pass of the laser beam across the material, and at least one of the scribe features is formed below the surface of the material to enable the clean cleavage. In the method for welding the transparent material, the ultra-short laser pulse is used to create the joining through the localized heating. The ultra-short pulse duration time causes the nonlinear absorption of the laser radiation, and the high repetition rate of the laser causes the pulse-to-pulse accumulation of the heat in the material. The laser is converged in the vicinity of an interface of the material, and generates the high energy fluence in the region to be welded, minimize the damage on a remaining portion of the material, and enables a beautiful weld line.

    Abstract translation: 要解决的问题:提供一种用于划线或焊接透明材料的方法。

    解决方案:超短激光脉冲用于划线透明材料,并通过激光束穿过材料的单次通过形成多个划痕特征,并且至少一个划线特征形成在 该材料能够清洁切割。 在用于焊接透明材料的方法中,超短激光脉冲用于通过局部加热产生接合。 超短脉冲持续时间导致激光辐射的非线性吸收,并且激光的高重复率导致材料中的热脉冲到脉冲的积累。 激光器会聚在材料界面附近,并在待焊接的区域产生高能量通量,最大限度地减少材料剩余部分的损伤,从而实现美观的焊接线。 版权所有(C)2013,JPO&INPIT

    Polarization maintaining fiber, system and fiber laser
    6.
    发明专利
    Polarization maintaining fiber, system and fiber laser 有权
    极化维护光纤,系统和光纤激光器

    公开(公告)号:JP2012253378A

    公开(公告)日:2012-12-20

    申请号:JP2012181613

    申请日:2012-08-20

    Abstract: PROBLEM TO BE SOLVED: To provide: a fiber minimized in an amount of polarization mode coupling and polarization mode dispersion and increased in a polarization maintaining function; a polarization maintaining fiber in which pump light is guided inside an inner cladding while a large outside cladding ensures a reduction of mode-coupling inside a fiber core; a system; and a fiber laser.SOLUTION: A polarization maintaining fiber includes: a multi-mode fiber core doped with a rare-earth doping material; a first cladding surrounding the multi-mode fiber core; and a stress producing region provided in the first cladding and producing birefringence which allows single-mode light to transmit through the multi-mode fiber core without causing waveform distortions in a range of a specified fiber length, in the multi-mode fiber core.

    Abstract translation: 要解决的问题:提供:极化模式耦合和偏振模色散量最小化的光纤,并且在偏振保持功能中增加; 一种偏振保持光纤,其中泵浦光在内部包层内被引导,而大的外部包层确保了光纤芯内的模式耦合的减少; 一个系统; 和光纤激光器。 解决方案:偏振保持光纤包括:掺杂有稀土掺杂材料的多模光纤芯; 围绕多模光纤芯的第一包层; 以及设置在第一包层中的应力产生区域,并且在多模光纤芯中产生允许单模光透过多模光纤芯而不引起特定光纤长度范围内的波形失真的双折射。 版权所有(C)2013,JPO&INPIT

    Photonic bandgap fibers
    7.
    发明专利
    Photonic bandgap fibers 有权
    光电胶带纤维

    公开(公告)号:JP2012103704A

    公开(公告)日:2012-05-31

    申请号:JP2011259669

    申请日:2011-11-29

    Abstract: PROBLEM TO BE SOLVED: To design photonic bandgap fibers having desired dispersion characteristics, wide transmission bands and lower transmission loss.SOLUTION: An optical fiber 300 comprises a core 302 surrounded by a cladding 304 comprising substantially circular concentric ring-shaped regions 306, 308 with high and low refractive index, respectively. Smaller dimensions of high index material in the cladding and large core size provide small flat dispersion over a wide spectral range. The thickness of the high-index ring-shaped region 306 closest to the core has sufficiently large dimensions to provide negative dispersion or zero dispersion at a desired wavelength. Additionally, low-index cladding features distributed along concentric rings or circles are used for achieving wide bandgaps.

    Abstract translation: 要解决的问题:设计具有期望色散特性,宽传输带和较低传输损耗的光子带隙光纤。 解决方案:光纤300包括由包层304包围的芯302,包层304分别包括具有高折射率和低折射率的基本上圆形的同心环形区域306,308。 包层中高折射率材料的较小尺寸和较大的芯体尺寸在较宽的光谱范围内提供较小的平坦色散。 最靠近芯的高折射率环形区域306的厚度具有足够大的尺寸以在期望的波长处提供负色散或零色散。 另外,沿着同心环或圆圈分布的低折射率包层特征被用于实现宽带隙。 版权所有(C)2012,JPO&INPIT

    Photonic bandgap fiber
    8.
    发明专利
    Photonic bandgap fiber 有权
    光电胶带光纤

    公开(公告)号:JP2012088720A

    公开(公告)日:2012-05-10

    申请号:JP2011259668

    申请日:2011-11-29

    Abstract: PROBLEM TO BE SOLVED: To design an optical fiber which has a desired dispersion feature.SOLUTION: Many structures included in this description includes a photonic bandgap fiber designed so as to provide a desired dispersion spectrum. Further, designs for attaining a wide transmission band and low transmission loss are also discussed. For example, some fiber designs provide small flat dispersion over a wide spectrum range with smaller dimensions of a high refractive index material of a cladding and a large size of a core. In another embodiment, the thickness of a high refractive index ring formation region closest to the core is large enough to provide negative dispersion or no dispersion at a desired wavelength. Further, features of the low refractive index cladding distributed along a concentric ring or circle can be used to obtain a wide bandgap.

    Abstract translation: 要解决的问题:设计具有期望的色散特性的光纤。 解决方案:包括在本说明书中的许多结构包括设计成提供期望色散谱的光子带隙光纤。 此外,还讨论了用于实现宽传输频带和低传输损耗的设计。 例如,一些光纤设计在较宽的光谱范围内提供较小的平坦色散,具有较小尺寸的包层和大尺寸芯的高折射率材料。 在另一个实施例中,最靠近芯的高折射率环形成区域的厚度足够大以在期望的波长处提供负色散或不分散。 此外,可以使用沿着同心环或圆分布的低折射率包层的特征以获得宽带隙。 版权所有(C)2012,JPO&INPIT

    Optical amplifier
    9.
    发明专利
    Optical amplifier 审中-公开
    光放大器

    公开(公告)号:JP2011055016A

    公开(公告)日:2011-03-17

    申请号:JP2010280728

    申请日:2010-12-16

    Abstract: PROBLEM TO BE SOLVED: To generate peak intensity and pulse energy larger than those achieved with a single mode (SM) fiber, by increasing capacity for accumulating energy in an optical fiber amplifier before undesirable non-linearity and gain saturation start. SOLUTION: This optical amplifier includes: a fiber oscillator 10 serving as a laser source, which generates an input beam having a mode close to diffraction limit; a multiple mode fiber amplifier 12; a mode converter 14; and a pump source 20. The mode converter 14 receives an input beam, converts a mode of the input beam to conform to a basic mode of the multiple mode fiber amplifier 12, and generates a mode-converted input beam to be input to the multiple mode fiber amplifier 12. The pump source 20 optically pumps the multiple mode fiber amplifier 12, and generates a strong output beam which is intrinsically amplified by the basic mode. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:为了产生比单模(SM)光纤实现的峰值强度和脉冲能量更大的峰值强度和脉冲能量,通过增加在不期望的非线性和增益饱和开始之前在光纤放大器中累积能量的能力。 解决方案:该光放大器包括:用作激光源的光纤振荡器10,其产生具有接近衍射极限的模式的输入光束; 多模光纤放大器12; 模式转换器14; 模式转换器14接收输入光束,将输入光束的模式转换为符合多模光纤放大器12的基本模式,并生成要输入到多模光纤放大器12的模式转换输入光束 泵浦光源20对多模光纤放大器12进行光泵浦,并产生本质上由基本模式放大的强输出光束。 版权所有(C)2011,JPO&INPIT

    Polarization maintaining fiber, fiber amplifier, and fiber laser
    10.
    发明专利
    Polarization maintaining fiber, fiber amplifier, and fiber laser 审中-公开
    极化维持光纤,光纤放大器和光纤激光器

    公开(公告)号:JP2009205174A

    公开(公告)日:2009-09-10

    申请号:JP2009142237

    申请日:2009-06-15

    Abstract: PROBLEM TO BE SOLVED: To provide a fiber increased in polarization maintaining ability while reducing the amount of polarization mode coupling and polarization mode dispersion, and to provide a highly efficient fiber amplifier or laser with a large outer diameter for maintaining polarization so that pump light is guided in an inside clad while a large outside clad ensures the decrease of fiber core inner mode coupling. SOLUTION: The polarization maintaining fiber has a fiber core of multimode having an elliptic cross section; a first clad that surrounds the fiber core; a second clad that surrounds the first clad, and a coating that surrounds the second clad. The first clad has a circular cross section, and the second clad has a noncircular cross section. Single mode light is propagated to the fiber core. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:为了提供在增加偏振维持能力的同时减少偏振模耦合和偏振模色散量的光纤,并且提供具有大外径的高效光纤放大器或激光器以保持偏振,使得 泵浦光在内包层中被引导,而大的外包层确保了纤芯内模耦合的减小。 解决方案:保偏光纤具有具有椭圆截面的多模光纤芯; 围绕纤维芯的第一包层; 围绕第一包层的第二包层和围绕第二包层的涂层。 第一包层具有圆形横截面,第二包层具有非圆形横截面。 单模光线传播到光纤芯。 版权所有(C)2009,JPO&INPIT

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