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公开(公告)号：US5825793A
公开(公告)日：1998-10-20
申请号：US656875
申请日：1996-05-30
CPC分类号： H01S3/13 , H01S3/131 , H01S3/1312 , H01S3/1623 , H01S3/1648
摘要： A laser having, a resonator structure including a wavelength variable laser crystal containing a fluoride and an optical part for controlling the wavelength of radiation from the laser crystal, a device to excite the laser crystal, a device for detect reflected light from the optical part as a sample beam, and a device to stabilize the output of a laser beam from the resonator structure based on the sample beam.
摘要翻译： 一种激光器，具有包括含有氟化物的波长可变激光晶体和用于控制来自激光晶体的辐射波长的光学部件的谐振器结构，激发激光晶体的装置，用于检测来自光学部件的反射光的装置， 样品光束和用于稳定基于样品光束的来自谐振器结构的激光束的输出的装置。
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公开(公告)号：US6047010A
公开(公告)日：2000-04-04
申请号：US598846
申请日：1996-02-09
CPC分类号： H01S3/109 , H01S3/0401 , H01S3/042 , H01S3/08036 , H01S3/09415 , H01S3/1062
摘要： A second harmonic generator comprising a semiconductor laser as an excitation light source and a resonator having a solid laser crystal excited by the excitation light source, a control element for controlling the wavelength of a first oscillation wave generated from the solid laser crystal and a nonlinear crystal for wavelength converting the first oscillation wave as a fundamental wave into a second harmonic wave as a second oscillation wave, wherein the components of the resonator are arranged in the order of a first laser mirror, solid laser crystal, wavelength control element, nonlinear crystal and second laser mirror from the input side of the excitation light.
摘要翻译： 一种二次谐波发生器，包括作为激发光源的半导体激光器和由激发光源激发的固体激光晶体的谐振器，用于控制从固体激光晶体产生的第一振荡波的波长的控制元件和非线性晶体 用于将作为基波的第一振荡波波长转换成作为第二振荡波的二次谐波，其中谐振器的分量按照第一激光镜，固体激光晶体，波长控制元件，非线性晶体和 第二激光镜从激励光的输入侧。
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公开(公告)号：US5757827A
公开(公告)日：1998-05-26
申请号：US839388
申请日：1997-04-18
CPC分类号： H01S3/109 , H01S3/0941 , H01S3/09415 , H01S3/105 , H01S3/1062 , H01S3/1623 , H01S3/1648
摘要： A second harmonic generating apparatus including a semiconductor laser serving as a pumping source, a resonator structure for oscillating a first radiation wave generated by LiSAF (Cr:LiSrAlF.sub.6 : Lithium strontium aluminum fluoride with chromium added) crystal which is a solid-state laser crystal which is excited by the pumping source, a control element for controlling the wavelength of the first oscillation wave, and a nonlinear crystal for performing wavelength conversion into second harmonic which is a second oscillation wave, with the first oscillation wave serving as a fundamental wave, the nonlinear crystal being provided in the resonator. A higher efficiency and reliability of the second harmonic generating apparatus is achieved.
摘要翻译： 一种二次谐波发生装置，包括用作泵浦源的半导体激光器，用于振荡由LiSAF（Cr：LiSrAlF6：添加了铬的锂锶氟化铝）产生的第一辐射波的谐振器结构晶体，该晶体是固体激光晶体， 被泵浦源激励，用于控制第一振荡波的波长的控制元件和用第二振荡波进行波长转换成二次谐波的非线性晶体，第一振荡波用作基波， 在谐振器中提供非线性晶体。 实现二次谐波发生装置的更高的效率和可靠性。
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公开(公告)号：US5583882A
公开(公告)日：1996-12-10
申请号：US395567
申请日：1995-03-01
CPC分类号： G11B7/127 , H01S3/09415 , H01S3/109 , H01S3/025 , H01S3/0401 , H01S3/0405 , H01S3/042 , H01S3/1623 , H01S3/1648
摘要： A laser apparatus including a laser crystal composed of a fluoride which contains chromium (Cr), a resonator which includes the laser crystal, a means for exciting the laser crystal, a first laser beam produced from light which is emitted from the laser crystal and oscillated in the laser resonator, and at least one optical component which is inserted in said resonator; wherein an aperture in the resonator is substantially five or more times the diameter of the first laser beam. A small, low-power SHG laser light source is achieved.
摘要翻译： 一种激光装置，包括由含有铬（Cr）的氟化物，包含激光晶体的谐振器，激光晶体激发装置，由从激光晶体发出的光产生的第一激光束振荡的激光晶体 在激光谐振器中，以及至少一个插入所述谐振器中的光学部件; 其中所述谐振器中的孔基本上是所述第一激光束的直径的五倍或更多倍。 实现了小型，低功率的SHG激光光源。
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公开(公告)号：US5359452A
公开(公告)日：1994-10-25
申请号：US46955
申请日：1993-04-16
申请人： Fumio Nitanda , Yasunori Furukawa , Masayoshi Sato , Kohei Ito , Satoshi Makio
发明人： Fumio Nitanda , Yasunori Furukawa , Masayoshi Sato , Kohei Ito , Satoshi Makio
CPC分类号： G02F1/3558 , C30B11/00 , C30B13/00 , C30B15/00 , C30B29/30 , G02F1/0018
摘要： 0.1% or more of Mg by weight is added to lithium tantalate monocrystal materials wherein the amount of Fe is restricted to 10 ppm by weight or less to improve light transmittance in the short wavelength range of blue light and to shift the fundamental absorption edge to the shorter wavelength.
摘要翻译： 将0.1重量％以上的Mg添加到钽酸锂单晶材料中，其中Fe的量限制在10重量ppm以下，以提高蓝光的短波长范围内的透光率，并将基底吸收边缘移位到 波长较短。
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公开(公告)号：US5150252A
公开(公告)日：1992-09-22
申请号：US841789
申请日：1992-03-02
申请人： Yasunori Furukawa , Masayoshi Sato
发明人： Yasunori Furukawa , Masayoshi Sato
IPC分类号： G02F1/355
CPC分类号： G02F1/3551
摘要： A harmonics generation element which comprises a nonlinear optical element having single-crystals of lithium niobate containing magnesium of less than 5 atomic per cent. The nonlinear optical element has 3 ppm or less of impurity Fe and is configured so that a primary laser beam is made incident into the nonlinear optical element and a secondary output light having a wavelength of higher-order harmonics is emitted therefrom.
摘要翻译： 一种谐波产生元件，其包括具有小于5原子％的镁的铌酸锂单晶的非线性光学元件。 非线性光学元件具有3ppm以下的杂质Fe，并且被配置为使得初级激光束入射到非线性光学元件中，并且从其发射具有高次谐波波长的次级输出光。
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7.发明授权Optically functional device, single crystal substrate for the device and method for its use 有权光功能器件，单晶衬底的器件及其使用方法公开(公告)号：US06747787B2
公开(公告)日：2004-06-08
申请号：US09797596
申请日：2001-03-05
IPC分类号： G02F1355
CPC分类号： G02F1/0027 , G02F1/292 , G02F1/3534 , G02F1/3558 , G02F1/3775 , G02F1/39 , G02F2202/20
摘要： An optically functional device comprising a ferroelectric single crystal substrate and polarization-inverted structures formed at portions of the substrate at a temperature of not higher than the Curie temperature by an electron beam scanning irradiation method or a voltage application method and designed to control light passed through the polarization-inverted portions, wherein a LiNbO3 crystal having a molar ratio of Li/Nb within a range of from 0.95 to 1.01, is used as the substrate, so that the propagation loss of light passed through the polarization-inverted portions immediately after formation of the polarization-inverted structures, is not more than 2%.
摘要翻译： 一种光功能元件，其特征在于，具有强电介质单晶基板和通过电子束扫描照射法或电压施加方法在不高于居里温度的温度下在基板的部分形成的偏振反转结构，并设计成控制通过的光 使用其中Li / Nb的摩尔比在0.95〜1.01的范围内的LiNbO 3晶体作为基板，使得在形成之后立即通过偏振反转部分的光的传播损耗为偏振反转部分 的极化反转结构不大于2％。
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8.发明授权Single crystal of lithium niobate or tantalate and its optical element, and process and apparatus for producing an oxide single crystal 有权铌酸锂或钽酸锂的单晶及其光学元件，以及用于生产氧化物单晶的工艺和设备公开(公告)号：US06673330B1
公开(公告)日：2004-01-06
申请号：US09521899
申请日：2000-03-09
IPC分类号： C01D1500
CPC分类号： C30B15/12 , C30B15/00 , C30B29/30 , Y10T117/10
摘要： A single crystal of lithium niobate or lithium tantalate may be grown from a melt of a composition having a molar excess of Li compared to a melt having the stoichiometric amount of lithium, and having a molar fraction of Li2O/(Nb2O5+Li2O) or Li2O/(Ta2O5+Li2O) within a range of at least 0.490 and less than 0.500. The single crystal also has at least one element selected from the group consisting of Mg, Zn, Sc and In, in an amount of from 0.1 to 3.0 mol % based on the total amount of the elements, Nb and Li, or the total amount of the elements, Ta and Li.
摘要翻译： 铌酸锂或钽酸锂的单晶可以从具有摩尔过量的Li的组合物的熔体与具有化学计量的锂的熔体相比生长，并且具有Li 2 O /（Nb 2 O 5 + Li 2 O）或Li 2 O的摩尔分数 /（Ta2O5 + Li2O）在0.490以上且小于0.500的范围内。 单晶还具有选自Mg，Zn，Sc和In中的至少一种元素，相对于元素的总量，Nb和Li为0.1〜3.0摩尔％，或者总量 的元素，Ta和Li。
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9.发明授权Highly insulative and highly stable piezoelectric single LTGA crystal, method for producing the same, piezoelectric element using said single LTGA crystal, and combustion pressure sensor 有权高绝缘和高度稳定的压电单片LTGA晶体，其制造方法，使用所述单个LTGA晶体的压电元件和燃烧压力传感器公开(公告)号：US09005466B2
公开(公告)日：2015-04-14
申请号：US13583600
申请日：2011-03-09
申请人： Takayuki Hayashi , Toshimitsu Aruga , Makoto Matsukura , Yutaka Anzai , Akio Miyamoto , Sadao Matsumura , Yasunori Furukawa
发明人： Takayuki Hayashi , Toshimitsu Aruga , Makoto Matsukura , Yutaka Anzai , Akio Miyamoto , Sadao Matsumura , Yasunori Furukawa
IPC分类号： C30B29/30 , C30B33/02 , H01L41/08 , H01L41/18 , C30B29/22 , G01L9/08 , G01L23/10 , H01L41/113 , H01L41/187 , C30B15/00 , H01L41/41 , F02D35/02
CPC分类号： C30B29/22 , C30B15/00 , C30B33/02 , F02D35/023 , G01L9/08 , G01L23/10 , H01L41/1132 , H01L41/18 , H01L41/187 , H01L41/41
摘要： In accordance with the present invention, there is provided a method for producing a single LTGA crystal from a polycrystalline starting material prepared from a mixture of La2O3, Ta2O5, Ga2O3, and Al2O3, wherein a mixture having a composition represented by y(La2O3)+(1−x−y−z)(Ta2O5)+z(Ga2O3)+x(Al2O3) (in the formula, 0
摘要翻译： 根据本发明，提供了从由La 2 O 3，Ta 2 O 5，Ga 2 O 3和Al 2 O 3的混合物制备的多晶原料制备单个LTGA晶体的方法，其中具有由y（La 2 O 3）+ （1-x-y-z）（Ta 2 O 5）+ z（Ga 2 O 3）+ x（Al 2 O 3）（在式中，0
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10.发明申请公开(公告)号：US20100112733A1
公开(公告)日：2010-05-06
申请号：US12580875
申请日：2009-10-16
申请人： Yasunori Furukawa
发明人： Yasunori Furukawa
CPC分类号： G03F7/706 , G01M11/0264 , G01M11/0271
摘要： A measuring device configured to measure a wave aberration of an optical system to be measured includes a reflection optical element for reflecting light, having passed through a mask and the optical system to be measured, into the optical system to be measured, and a detector for detecting an interference fringe of light having passed through pinholes and openings. The mask has at least three pinhole-opening pairs, each including one pinhole and one opening having a larger diameter than the pinhole that are arranged point-symmetrically, the three pinhole-opening pairs having the common center of symmetry. The light to be measured formed in two of the three pairs is made to interfere with the reference light formed in the remaining pair, or, the light to be measured formed in one of the three pairs is made to interfere with the reference light formed in the other two pairs.
摘要翻译： 被配置为测量待测光学系统的波像差的测量装置包括用于将已经通过掩模和待测量的光学系统的光反射到待测量的光学系统中的反射光学元件，以及用于 检测穿过针孔和开口的光的干涉条纹。 掩模具有至少三个针孔开口对，每个针孔开口对包括一个针孔和一个开口，其具有比针对对称布置的针孔更大的直径，三个针孔开口对具有共同的对称中心。 使被测量的光被形成为三对中的两对，使得与剩下的一对中形成的基准光干涉，或者使三对中的一个中形成的被测量的光与第一对中形成的基准光干涉 另外两对。
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