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公开(公告)号：US5205904A
公开(公告)日：1993-04-27
申请号：US668950
申请日：1991-03-13
Applicant: Kazuhisa Yamamoto , Kunihiko Takeshige , Tetsuo Taniuchi
Inventor： Kazuhisa Yamamoto , Kunihiko Takeshige , Tetsuo Taniuchi
CPC classification number: G02F1/3558 , G02F1/377
Abstract: A method to fabricate nonlinear optical frequency doubler devices comprised of a process to form periodic tantalum masks on a LiNb.sub.x Ta.sub.1-x O.sub.3 (wherein 0.ltoreq.x.ltoreq.1) crystal substrate, a process to form periodic proton exchanged regions by applying a phosphoric acid treatment, and a process to form an optical waveguide on the surface of said crystal.According to this fabrication method of the present invention, deeper domain-inverted regions can be formed on said crystal surface, and by this, a fundamental wave can be transformed into a harmonic wave at a high efficiency.
Abstract translation: 一种制造非线性光学倍频装置的方法，包括在LiNbxTa1-xO3（其中0
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公开(公告)号：US4951293A
公开(公告)日：1990-08-21
申请号：US354324
申请日：1989-05-19
Applicant: Kazuhisa Yamamoto , Tetsuo Taniuchi
Inventor： Kazuhisa Yamamoto , Tetsuo Taniuchi
CPC classification number: H01S5/02 , G02B6/26 , G02B6/42 , G02F1/377 , G02B2006/12195 , G02B6/4208 , G02B6/4234
Abstract: A visible laser source comprises a sub mount. A semiconductor laser located on the sub mount has an active layer formed at a surface of the semiconductor laser. The active-layer formed surface of the semiconductor laser opposes the sub mount. An optical nonlinear device located on the sub mount has a waveguide formed at a surface of the optical nonlinear device. The waveguide formed surface of the optical nonlinear device opposes the sub mount. The semiconductor laser and the waveguide are directly coupled to each other for direct application of a fundamental wave from the semiconductor laser to the optical nonlinear device.
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公开(公告)号：US5323262A
公开(公告)日：1994-06-21
申请号：US11136
申请日：1993-01-29
Applicant: Kiminori Mizuuchi , Kazuhisa Yamamoto , Tetsuo Taniuchi , Yoichi Sasai
Inventor： Kiminori Mizuuchi , Kazuhisa Yamamoto , Tetsuo Taniuchi , Yoichi Sasai
CPC classification number: G02F1/3558 , G02F1/377
Abstract: A wavelength conversion device exhibiting an excellent wavelength conversion efficiency is provided by forming it in such a manner that an LiTaO.sub.3 substrate is subjected to a proton exchange treatment to form a proton-exchange layer before the proton-exchange layer is subjected to heat treatment to form a domain-inverted structure. Heat treatment is performed at a high temperature rising speed to prevent the thermal diffusion of the proton-exchange layer so that the expansion of the domain-inverted structure to be formed in the proton-exchange layer is restrained. As a result, a higher harmonic wave wavelength conversion device can be provided.
Abstract translation: 通过使LiTaO 3基板进行质子交换处理以形成质子交换层，在质子交换层进行热处理以形成之前，形成具有优异的波长转换效率的波长转换元件 域反转结构。 以高温上升速度进行热处理，以防止质子交换层的热扩散，从而抑制在质子交换层中形成的畴反转结构的膨胀。 结果，可以提供高次谐波波长转换装置。
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4.发明授权
公开(公告)号：US5142596A
公开(公告)日：1992-08-25
申请号：US730442
申请日：1991-07-16
Applicant: Kiminori Mizuuchi , Kazuhisa Yamamoto , Tetsuo Taniuchi
Inventor： Kiminori Mizuuchi , Kazuhisa Yamamoto , Tetsuo Taniuchi
CPC classification number: G02F1/377 , G02B6/1228 , G02B6/305 , G02B6/4206 , G02B2006/1204 , G02B2006/12183 , G02B2006/12195 , G02F1/3525 , G02F2001/374
Abstract: A tapered light wave guide reduced in propagation loss, improved in coupling efficiency and free from the problem of optical damage. An input section, a widthwise tapered coupling section having a depth d2, and a wave guide having a depth d1 are formed on an LiNbO.sub.3 substrate. A depthwise tapered section in which the depth is changed from d2 to d1 is provided to connect the widthwise tapered coupling section having constant depth d2 and the wave guide, whereby a reduction in light propagation efficiency due to optical damage is prevented.
Abstract translation: 锥形光波导减少了传播损耗，提高了耦合效率，并且没有光学损伤的问题。 在LiNbO 3衬底上形成输入部分，具有深度d2的宽度方向的锥形耦合部分和具有深度d1的波导管。 设置深度从d2变为d1的深度渐缩部分，以连接具有恒定深度d2的宽度方向的锥形联接部分和波导，从而防止由光学损伤引起的光传播效率的降低。
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公开(公告)号：US5961720A
公开(公告)日：1999-10-05
申请号：US909138
申请日：1997-08-11
Applicant: Minoru Imaeda , Akihiko Honda , Katsuhiro Imai , Yuichiro Imanishi , Nobuyuki Kokune , Shoji Sogo , Kazuaki Yamaguchi , Tetsuo Taniuchi
Inventor： Minoru Imaeda , Akihiko Honda , Katsuhiro Imai , Yuichiro Imanishi , Nobuyuki Kokune , Shoji Sogo , Kazuaki Yamaguchi , Tetsuo Taniuchi
CPC classification number: C30B15/08 , C30B15/00 , C30B29/30 , Y10T117/1004 , Y10T117/1008 , Y10T117/1032 , Y10T117/1056 , Y10T117/1064
Abstract: A process is disclosed for continuously producing a single crystal by drawing downwardly a melt of a single crystal raw material, wherein a single crystal body grown from the melt is continuously pulled downwardly, and a plurality of single crystal products are continuously formed by intermittently cutting the single crystal body being downwardly moved.
Abstract translation: 公开了一种通过向下拉下单晶原料的熔体来连续生产单晶的方法，其中从熔体生长的单晶体被连续地向下拉，并且通过间歇切割连续形成多个单晶产物 单晶体向下移动。
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Patent Agency Ranking
公开(公告)号：US5032220A
公开(公告)日：1991-07-16
申请号：US477768
申请日：1990-02-09
Applicant: Kazuhisa Yamamoto , Shigeru Ohmori , Tetsuo Taniuchi
Inventor： Kazuhisa Yamamoto , Shigeru Ohmori , Tetsuo Taniuchi
CPC classification number: G02F1/377 , G02B6/1345 , G02F2202/20
Abstract: When fabricating an optical wavelength by proton exchange method on a substrate of LiNb.sub.x Ta.sub.1-x O.sub.3 (0.ltoreq.x.ltoreq.1), by using Ta.sub.2 O.sub.5 as the protective mask, the edge of the mask becomes smooth and diffusion of impurity from the protective mask into the substrate does not occur during heat treatment, and the propagation loss may be notably reduced. As a result, the efficiency of the frequency doubler may be enhanced.
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公开(公告)号：US4946240A
公开(公告)日：1990-08-07
申请号：US176772
申请日：1988-04-01
Applicant: Kazuhisa Yamamoto , Tetsuo Taniuchi
Inventor： Kazuhisa Yamamoto , Tetsuo Taniuchi
CPC classification number: G02B6/1345 , G02B6/26 , G02B6/34 , G02F1/377
Abstract: An optical harmonic generating device having a proton-exchanged optical waveguide possessing an upward convex shape and a structure capable of propagating in a single mode, an input part for receiving an optical wave having a fundamental frequency and an output part for outputting a harmonic wave, disposed on a substrate of LiNb.sub.x Ta.sub.1-x O.sub.3 (O.ltoreq.x.ltoreq.1). The device is an optical harmonic wave generating device with excellent confinement of light, optimum structure and high efficiency.
Abstract translation: 一种具有向上凸起的质子交换光波导和能够以单个模式传播的结构的光学谐波发生装置，用于接收具有基频的光波的输入部分和用于输出谐波的输出部分， 设置在LiNb x Ta 1-x O 3（O x = 1）的衬底上。 该器件是光束谐波发光器件，光线优良，结构优良，效率高。
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公开(公告)号：US4598996A
公开(公告)日：1986-07-08
申请号：US453881
申请日：1982-12-14
Applicant: Tetsuo Taniuchi
Inventor： Tetsuo Taniuchi
CPC classification number: G01K11/14
Abstract: In an optical fiber type temperature detector using temperature change of refraction index in birefringent crystal, by using LiTaO.sub.3 or Sr.sub.x Ba.sub.l-x Nb.sub.2 O.sub.6 single crystal (0.5
Abstract translation: PCT No.PCT / JP82 / 00155 Sec。 371日期1982年12月14日第 102（e）1982年12月14日日期PCT提交1982年5月6日PCT公布。 出版物WO82 / 03914 日期：1982年11月11日。在使用双折射晶体的折射率变化的光纤型温度检测器中，通过使用LiTaO3或SrxBal-xNb2O6单晶（0.5
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公开(公告)号：US4554449A
公开(公告)日：1985-11-19
申请号：US490136
申请日：1983-04-28
Applicant: Tetsuo Taniuchi , Yoshinobu Tsujimoto
Inventor： Tetsuo Taniuchi , Yoshinobu Tsujimoto
CPC classification number: G02B6/266 , G01R33/0322 , G02F1/0036
Abstract: A fiber optic magnetic field sensor employing Faraday effect. The sensor has two pieces of birefringent substance interposed between the ends of optical fibers and a rod lens for effecting polarization separation. In addition, the sensor employs a reflex optical system in which light reciprocates through a Faraday material. Thereby, a magnetic field sensor has been realized which is more compact and lightweight and lower in cost as well as more accurate.
Abstract translation: 采用法拉第效应的光纤磁场传感器。 该传感器具有介于光纤端部的两片双折射物质和用于实现偏振分离的棒状透镜。 此外，该传感器采用反射光学系统，其中光通过法拉第材料往复运动。 由此，实现了更加紧凑，重量轻，成本更低，更准确的磁场传感器。
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公开(公告)号：US5690734A
公开(公告)日：1997-11-25
申请号：US616525
申请日：1996-03-19
Applicant: Minoru Imaeda , Akihiko Honda , Katsuhiro Imai , Yuichiro Imanishi , Nobuyuki Kokune , Shoji Sogo , Kazuaki Yamaguchi , Tetsuo Taniuchi
Inventor： Minoru Imaeda , Akihiko Honda , Katsuhiro Imai , Yuichiro Imanishi , Nobuyuki Kokune , Shoji Sogo , Kazuaki Yamaguchi , Tetsuo Taniuchi
CPC classification number: C30B15/08 , C30B15/00 , C30B29/30 , Y10T117/1004 , Y10T117/1008 , Y10T117/1032 , Y10T117/1056 , Y10T117/1064
Abstract: A process is disclosed for continuously producing a single crystal by drawing downwardly a melt of a single crystal raw material, wherein a single crystal body grown from the melt is continuously pulled downwardly, and a plurality of single crystal products are continuously formed by intermittently cutting the single crystal body being downwardly moved.
Abstract translation: 公开了一种通过向下拉下单晶原料的熔体来连续生产单晶的方法，其中从熔体生长的单晶体被连续地向下拉，并且通过间歇切割连续形成多个单晶产物 单晶体向下移动。
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