公开(公告)号：US06433345B1

公开(公告)日：2002-08-13

申请号：US09611972

申请日：2000-07-06

申请人： Katsumi Hayashi ,  Toshiro Hayakawa ,  Yoji Okazaki

发明人： Katsumi Hayashi ,  Toshiro Hayakawa ,  Yoji Okazaki

IPC分类号： F21V916

CPC分类号： G01N21/6456 ,  A61B1/043 ,  A61B1/063 ,  A61B1/0638 ,  A61B1/128 ,  A61B5/0071 ,  A61B5/0084 ,  G01N21/645 ,  G01N2021/6484 ,  G01N2201/0612

摘要： A fluorescence observing apparatus including a light source for emitting excitation light, an excitation light irradiation section for irradiating the excitation light to a sample, and a fluorescence measurement section for measuring fluorescence emitted from the sample by the irradiation of the excitation light. The temperature of the light source is always sensed by a thermistor, and a Peltier element disposed in direct contact with the light source is cooled by a control section so that the temperature of the light source is maintained at 20° C. or less.

摘要翻译： 包括用于发射激发光的光源的荧光观察装置，用于将激发光照射到样品的激发光照射部分和用于通过照射激发光来测量从样品发射的荧光的荧光测量部分。 光源的温度总是由热敏电阻感测，并且与光源直接接触的珀耳帖元件被控制部分冷却，使得光源的温度保持在20℃以下。

公开(公告)号：US6049555A

公开(公告)日：2000-04-11

申请号：US008073

申请日：1998-01-16

申请人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Hiroaki Hyuga

发明人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Hiroaki Hyuga

IPC分类号： H01S3/094 ,  H01S3/04 ,  H01S3/0941 ,  H01S3/098 ,  H01S3/106 ,  H01S3/109

CPC分类号： H01S3/08036 ,  H01S3/0401 ,  H01S3/09415 ,  H01S3/1062 ,  H01S3/109

摘要： A laser-diode-pumped solid state laser in which a solid state laser crystal is pumped by a light beam produced by a laser diode and which is not lower than 10 W in the internal power of the resonator includes a temperature control circuit which keeps the inside temperature of a resonator at a predetermined temperature and, a wavelength selector which is disposed in the resonator and selects one of a plurality of oscillation modes in the resonator, thereby making the laser oscillate in a single mode. The wavelength selector has characteristics such that the increase in temperature of the wavelength selector due to absorption of a laser beam is smaller than a value such that when the temperature of the wavelength selector changes by the value or more, the oscillation mode selected by the wavelength selector changes.

摘要翻译： 激光二极管泵浦固态激光器，其中固态激光晶体由激光二极管产生的并且在谐振器的内部功率中不低于10W的光束泵浦，包括温度控制电路，其保持 在预定温度下的谐振器的内部温度，以及设置在谐振器中并选择谐振器中的多个振荡模式中的一种的波长选择器，从而使激光器以单一模式振荡。 波长选择器具有这样的特征，使得由于激光束的吸收而导致的波长选择器的温度升高小于当波长选择器的温度变化了以上的值时，由波长选择的振荡模式 选择器更改。

公开(公告)号：US5848092A

公开(公告)日：1998-12-08

申请号：US580512

申请日：1995-12-28

申请人： Shinji Mitsumoto ,  Yoji Okazaki

发明人： Shinji Mitsumoto ,  Yoji Okazaki

IPC分类号： H01S3/042 ,  H01S3/02 ,  H01S3/04 ,  H01S3/08 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/098 ,  H01S3/109 ,  H01S3/13 ,  H01S3/16

CPC分类号： H01S3/025 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/09415 ,  H01S3/109

摘要： A laser-diode-pumped solid state laser includes a Fabry-Perot resonator having a pair of resonator mirrors. A holder is provided with a pair of mirror mounting portions respectively having mirror mounting surfaces which are spaced from each other in the direction of the optical axis of the resonator and extend to intersect the optical axis of the resonator, and with connecting portion which is formed integrally with the mirror mounting portions to connect the mirror mounting portions. The resonator mirrors are fixed to the mirror mounting portions with their light transmissive end faces bonded to the mirror mounting surfaces of the holder.

摘要翻译： 激光二极管泵浦固态激光器包括具有一对谐振镜的法布里 - 珀罗谐振器。 保持器设置有一对反射镜安装部分，分别具有在谐振器的光轴方向上彼此间隔开并且延伸到与谐振器的光轴相交的反射镜安装表面以及形成的连接部分 与镜安装部一体地连接镜安装部。 谐振器镜被固定到镜安装部分，其透光端面粘合到保持器的镜安装表面。

公开(公告)号：US5699372A

公开(公告)日：1997-12-16

申请号：US535464

申请日：1995-09-28

申请人： Yoji Okazaki

发明人： Yoji Okazaki

IPC分类号： G02F1/37 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/098 ,  H01S3/10 ,  H01S3/108 ,  H01S3/16

CPC分类号： H01S3/108 ,  H01S3/08036 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/1623 ,  H01S3/1648

摘要： A wavelength-conversion solid-state laser capable of generating a ultraviolet laser beam with high efficiency. The wavelength-conversion solid-state laser is made up of a phonon-based solid-state laser crystal, a semiconductor laser which emanates pump light to pump the phonon-based solid-state laser crystal, a laser resonator, a wavelength selection element which selects an oscillation wavelength, and a nonlinear optical crystal which generates a sum frequency of a solid-state laser beam, whose wavelength is selected by the wavelength-selection element, and the pump light. The phonon-based solid-state laser crystal is pumped with pump light emitted from the semiconductor laser, as a result of which a solid-state laser beam is emitted. A sum frequency of the solid-state laser beam and the pump beam is produced by enabling them to pass through the nonlinear optical crystal.

摘要翻译： 能够高效率地生成紫外线激光的波长转换固态激光器。 波长转换固态激光器由基于声子的固态激光晶体，发出泵浦光以泵浦基于声子的固态激光晶体的半导体激光器，激光谐振器，波长选择元件 选择振荡波长，以及产生其波长由波长选择元件选择的固体激光束的和频和泵浦光的非线性光学晶体。 基于声子的固态激光晶体由从半导体激光器发射的泵浦光泵浦，结果发射固态激光束。 通过使其能够通过非线性光学晶体，产生固体激光束和泵浦光束的和频。

公开(公告)号：US5497387A

公开(公告)日：1996-03-05

申请号：US365363

申请日：1994-12-28

申请人： Yoji Okazaki

发明人： Yoji Okazaki

IPC分类号： G02F1/37 ,  H01S3/08 ,  H01S3/094 ,  H01S3/098 ,  H01S3/108 ,  H01S3/109 ,  H01S3/10

CPC分类号： H01S3/109 ,  H01S3/0401 ,  H01S3/08036 ,  H01S3/094038 ,  H01S3/108

摘要： A solid-state laser is made up of a solid-state laser crystal, a pump source for pumping the laser crystal, a resonator, an etalon disposed in the resonator for selecting an oscillation wavelength, and a nonlinear optical crystal disposed in the resonator for converting the wavelength of the solid-state laser beam. A wedge-shaped optical member, with two light-transmission end faces being not parallel to each other, is disposed in the resonator. A resonator mode is set to a mode, where the maximum output of a solid-state laser beam is obtained with respect to a resonator temperature in the vicinity of a temperature at which the maximum efficiency of wavelength conversion of the nonlinear optical crystal is obtained, by fixing the wedge-shaped optical member at an optimum position. A wedge-shaped nonlinear optical member may be used both as the nonlinear optical crystal and the wedge-shaped optical member, or a wedge-shaped etalon may be used both as the etalon and the wedge-shaped optical member. Alternately, the solid-state laser further includes a wedge-shaped birefringent polarization control element, with two end faces being not parallel to each other, for controlling the direction of linear polarization of a solid-state laser, and this wedge-shaped birefringent polarization control element may be used as the wedge-shaped optical member.

摘要翻译： 固体激光器由固体激光晶体，用于泵浦激光晶体的泵浦源，谐振器，设置在谐振器中的用于选择振荡波长的标准具和设置在谐振器中的非线性光学晶体组成 转换固态激光束的波长。 在谐振器中设置有两个光透射端面彼此不平行的楔形光学构件。 谐振器模式被设定为一种模式，其中相对于获得非线性光学晶体的最大波长转换效率的温度附近的谐振器温度获得固体激光束的最大输出， 通过将楔形光学构件固定在最佳位置。 可以使用楔形非线性光学构件作为非线性光学晶体和楔形光学构件，或者可以使用楔形标准具作为标准具和楔形光学构件。 或者，固体激光器还包括楔形双折射偏振控制元件，其两个端面彼此不平行，用于控制固体激光器的线性偏振方向，并且该楔形双折射极化 控制元件可以用作楔形光学构件。

公开(公告)号：US5446750A

公开(公告)日：1995-08-29

申请号：US323883

申请日：1994-10-17

申请人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Hiroaki Hyuga ,  Shinji Mitsumoto

发明人： Hisashi Ohtsuka ,  Yoji Okazaki ,  Hiroaki Hyuga ,  Shinji Mitsumoto

IPC分类号： G02F1/37 ,  H01S3/02 ,  H01S3/04 ,  H01S3/042 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/109

CPC分类号： H01S3/025 ,  H01S3/042 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/09415 ,  H01S3/1028 ,  H01S3/109

摘要： A laser diode pumped solid laser comprises an optical module comprising a laser diode, a solid laser crystal, which is excited by a laser beam produced by the laser diode, and a resonator. An electronic cooling device has a cooling surface, on which the optical module is placed, and a heat radiating surface. An inner case housing houses the optical module therein on the cooling surface of the electronic cooling device. An outer case housing houses the inner case housing and the electronic cooling device therein and supports the electronic cooling device via its heat radiating surface. A temperature sensor detects the temperature in the region inside of the inner case housing. A control circuit controls the electronic cooling device in accordance with an output of the temperature sensor and thereby keeps the temperature in the region inside of the inner case housing at a predetermined target value.

摘要翻译： 激光二极管泵浦固体激光器包括光学模块，其包括由激光二极管产生的激光束激发的激光二极管，固体激光晶体和谐振器。 电子冷却装置具有其上放置有光学模块的冷却表面和散热表面。 内壳体在电子冷却装置的冷却表面上容纳光学模块。 外壳的外壳容纳内壳体和电子冷却装置，并通过其散热面支撑电子冷却装置。 温度传感器检测内壳体内部区域的温度。 控制电路根据温度传感器的输出控制电子冷却装置，从而将内壳体内的区域内的温度保持在预定的目标值。

公开(公告)号：US5436757A

公开(公告)日：1995-07-25

申请号：US040201

申请日：1993-04-01

申请人： Yoji Okazaki ,  Hiroaki Hyuga ,  Akinori Harada

发明人： Yoji Okazaki ,  Hiroaki Hyuga ,  Akinori Harada

IPC分类号： G02B6/12 ,  G02F1/35 ,  G02F1/37 ,  G02F1/377 ,  H01S3/109

CPC分类号： G02F1/3532 ,  G02F1/3775

摘要： An optical wavelength converting apparatus comprises a fundamental wave source, which produces a laser beam serving as a fundamental wave, and an optical wavelength converting device, which is provided with an optical waveguide constituted of a nonlinear optical material. The optical wavelength converting device converts a wavelength of the laser beam impinging upon and guided through the optical waveguide. The optical waveguide is provided with a plurality of periodic domain-inverted structures, which effect phase matching between the laser beam and wavelength-converted waves. Reflection of the fundamental wave or wavelength-converted waves from end faces of the optical wavelength converting device is thereby minimized, and a plurality of wavelength-converted waves having high intensities are obtained in a state combined with one another.

摘要翻译： 光波长转换装置包括产生用作基波的激光束的基波源和设置有由非线性光学材料构成的光波导的光波长转换装置。 光波长转换装置将激光束的波长转换成穿过光波导并引导穿过光波导。 光波导设置有多个周期性域反转结构，其实现激光束和波长转换波之间的相位匹配。 从而使光波长转换装置的端面的基波或波长转换波的反射最小化，并且以彼此结合的状态获得具有高强度的多个波长转换波。

公开(公告)号：US5432807A

公开(公告)日：1995-07-11

申请号：US208139

申请日：1994-03-09

申请人： Yoji Okazaki ,  Chiaki Goto ,  Hiroaki Hyuga ,  Akinori Harada

发明人： Yoji Okazaki ,  Chiaki Goto ,  Hiroaki Hyuga ,  Akinori Harada

IPC分类号： G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  H01S3/109 ,  H01S3/10

CPC分类号： G02F1/37 ,  H01S3/109 ,  G02F1/3553 ,  G02F2001/3546

摘要： In an optical wavelength converting apparatus, a fundamental wave impinges upon a crystal of a nonlinear optical material, the type II of phase matching between the fundamental wave and its second harmonic is effected, and the second harmonic of the fundamental wave is thereby radiated out of the optical wavelength converting apparatus. Two crystals constituted of the same material are employed as the crystal. The two crystals have equal lengths and are located in orientations such that corresponding optic axes may be shifted 90.degree. from each other. The optical wavelength converting apparatus yields the second harmonic having the maximum possible output power and yet can be kept small in size and low in cost.

摘要翻译： 在光波长变换装置中，基波对非线性光学材料的晶体入射，实现了基波和二次谐波之间的相位匹配型II，从而将基波的二次谐波从 光波长转换装置。 使用由相同材料构成的两个晶体作为晶体。 两个晶体具有相等的长度并且位于取向上，使得相应的光轴彼此相差90度。 光波长转换装置产生具有最大可能输出功率的二次谐波，并且可以保持尺寸小，成本低。

公开(公告)号：US5343485A

公开(公告)日：1994-08-30

申请号：US937970

申请日：1992-09-01

申请人： Yoji Okazaki

发明人： Yoji Okazaki

IPC分类号： G02F1/35 ,  G02F1/355 ,  H01S3/06 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/108 ,  H01S3/109 ,  H01S3/16 ,  H01S3/23 ,  H01S3/10

CPC分类号： H01S3/09415 ,  H01S3/10092 ,  H01S3/0604 ,  H01S3/0627 ,  H01S3/109 ,  H01S3/1673

摘要： In a laser diode pumped solid state laser, a primary solid state laser medium containing a rare earth metal is pumped by a semiconductor laser, and the wavelength of a laser beam having been obtained from the solid state laser oscillation is converted by a nonlinear optical material into a different wavelength. A solid state laser medium for injection locking is located between the primary solid state laser medium and the semiconductor laser. The solid state laser medium for injection locking is pumped by the semiconductor laser and produces a laser beam for injection locking through solid state laser oscillation in a single longitudinal mode, such that the laser beam for injection locking may impinge upon the primary solid state laser medium.

摘要翻译： 在激光二极管泵浦固体激光器中，通过半导体激光器泵浦包含稀土金属的主要固态激光介质，并且从固态激光振荡获得的激光束的波长由非线性光学材料转换 变成不同的波长。 用于注入锁定的固态激光介质位于主固态激光介质和半导体激光器之间。 用于注射锁定的固态激光介质由半导体激光器泵浦，并且通过固体激光器振荡在单一纵向模式中产生用于注入锁定的激光束，使得用于注入锁定的激光束可能撞击到主固态激光介质 。

公开(公告)号：US5253102A

公开(公告)日：1993-10-12

申请号：US984354

申请日：1992-12-02

申请人： Yoji Okazaki

发明人： Yoji Okazaki

IPC分类号： G02B5/30 ,  G02F1/35 ,  G02F1/37 ,  H01S3/10 ,  H01S3/109

CPC分类号： H01S3/109 ,  G02F1/3534 ,  G02F1/37

摘要： An optical wavelength converter system which has a crystal of a first nonlinear optical material for converting an incoming laser beam into a second harmonic wave and a crystal of a second nonlinear optical material for converting the laser beam and the second harmonic wave into a sum frequency wave. A phase compensator plate is interposed between the crystal of the first nonlinear optical material and the crystal of the second nonlinear optical material, whereupon the laser beam and the second harmonic wave are aligned substantially in the same linear polarization before they enter the crystal of the second nonlinear optical material.

摘要翻译： 一种光波长转换器系统，其具有用于将入射激光束转换为二次谐波的第一非线性光学材料的晶体和用于将激光束和二次谐波转换成和频波的第二非线性光学材料的晶体 。 在第一非线性光学材料的晶体和第二非线性光学材料的晶体之间插入相位补偿板，于是激光束和二次谐波在它们进入第二非线性光学材料的晶体之前基本上被排列成相同的线偏振 非线性光学材料。