公开(公告)号：EP0712184B1

公开(公告)日：2000-12-27

申请号：EP95109139.6

申请日：1995-06-13

申请人： FUJI PHOTO FILM CO., LTD.

发明人： Hyuga, Hiroaki, c/o Fuji Photo Film Co., Ltd.

IPC分类号： H01S3/109

CPC分类号： H01S3/109 ,  G02F2001/3548 ,  H01S3/1673

公开(公告)号：EP0844511B1

公开(公告)日：1999-12-15

申请号：EP98102389.8

申请日：1993-10-07

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： Mizuuchi, Kiminori ,  Yamamoto, Kazuhisa

IPC分类号： G02F1/35 ,  G02F1/37

CPC分类号： G02F1/3558 ,  G02F1/03 ,  G02F1/3775 ,  G02F2001/3546 ,  G02F2001/3548 ,  G02F2201/346 ,  G02F2202/20 ,  Y10T29/49016

摘要： An optical wavelength converting device is provided with a LiTaO3 substrate, a plurality of inverted-polarization layers periodically arranged in an upper surface of the LiTaO3 substrate, and an optical waveguide crossing the inverted-polarization layers. The upper surface of the LiTaO3 substrate is directed toward a -X-crystal axis direction. The inverted-polarization layers are formed by exchanging Ta ions of the LiTaO3 substrate for H ions, and an extending direction of each inverted-polarization layer is inclined at an angle of theta degrees (6 ions of the LiTaO3 substrate and the inverted-polarization layers for H ions to set a refractive index of the optical waveguide higher than that of the LiTaO3 substrate. The optical waveguide extends in a +Y-crystal axis direction. Fundamental waves polarized in a transverse electric mode induce electric field directed in +/-Y-crystal axis directions and are converted into second harmonic waves in the optical waveguide.

公开(公告)号：EP0878881A4

公开(公告)日：1998-11-18

申请号：EP96935471

申请日：1996-10-28

IPC分类号： G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  G02F1/39 ,  H01S3/06 ,  H01S3/10 ,  H01S3/108 ,  H01S3/109 ,  H01S3/115 ,  H01S3/16

CPC分类号： H01S3/108 ,  G02F1/3558 ,  G02F2001/3548 ,  H01S3/0606 ,  H01S3/1083 ,  H01S3/1095 ,  H01S3/115

摘要： An optical device of this invention is such that complicated adjustment of the arrangement is not needed unlike a conventional optical device for outputting light having a frequency different from that of the input light by means of a nonlinear optical crystal. Electrodes (12A and 12B) for Q-switching, electrodes (9A and 9B) for phase adjustment and a periodical domain inversion portion (15) are disposed at predetermined positions in path (2) inside an optical crystal body (1) having nonlinear optical properties, electro-optical properties and laser activity. Oscillation light (P1) is produced by inputting light (P0) given from the input side (3), and output light (P2) having a frequency different from the frequency of the input light (P0) is outputted from the output side (4) by the nonlinear optical property and by the generation of harmonic or by optical parametric oscillation by use of the periodical domain inversion portion (15). The refractive index of the part of nonlinear crystal body (1) between the phase adjustment electrodes (9A and 9B) is changed by changing the voltage between the electrodes (9A and 9B), and the frequency of resonance over the full length (Lt) of the path (2) is thus adjusted. The Q-switching of oscillation light (P) is conducted by changing the refractive index of an oblique crossing portion of the oblique side (G) of the electrode (12A) and the path (2) by changing the voltage between the Q switch electrodes (12A and 12B).

摘要翻译： 本发明的光学装置与传统的用于通过非线性光学晶体输出具有与输入光的频率不同的频率的光的光学装置不需要复杂的配置调整。 用于Q开关的电极（12A和12B），用于相位调节的电极（9A和9B）以及周期性畴反转部分（15）被设置在具有非线性光学元件的光学晶体（1）内的路径（2） 性质，电光特性和激光活性。 通过输入从输入侧（3）给出的光（P0）产生振荡光（P1），并且从输出侧（4）输出具有与输入光（P0）的频率不同的频率的输出光（P2） ）通过非线性光学性质和通过使用周期性畴反转部分（15）产生谐波或通过光学参量振荡来实现。 通过改变电极（9A和9B）之间的电压以及在全长（Lt）上的谐振频率来改变相位调节电极（9A和9B）之间非线性结晶体（1）的部分的折射率， 因此调整路径（2）的路径。 通过改变电极（12A）的斜边（G）和路径（2）的斜交部分的折射率，通过改变Q开关电极之间的电压来进行振荡光（P）的Q开关 （12A和12B）。

公开(公告)号：EP0878881A1

公开(公告)日：1998-11-18

申请号：EP96935471.1

申请日：1996-10-28

申请人： Mitsubishi Cable Industries, Ltd. ,  Ito, Hiromasa

发明人： ITO, Hiromasa

IPC分类号： H01S3/108 ,  H01S3/115 ,  H01S3/06

CPC分类号： H01S3/108 ,  G02F1/3558 ,  G02F2001/3548 ,  H01S3/0606 ,  H01S3/1083 ,  H01S3/1095 ,  H01S3/115

摘要： An optical device of this invention is such that complicated adjustment of the arrangement is not needed unlike a conventional optical device for outputting light having a frequency different from that of the input light by means of a nonlinear optical crystal. Electrodes (12A and 12B) for Q-switching, electrodes (9A and 9B) for phase adjustment and a periodical domain inversion portion (15) are disposed at predetermined positions in path (2) inside an optical crystal body (1) having nonlinear optical properties, electro-optical properties and laser activity. Oscillation light (P1) is produced by inputting light (P0) given from the input side (3), and output light (P2) having a frequency different from the frequency of the input light (P0) is outputted from the output side (4) by the nonlinear optical property and by the generation of harmonic or by optical parametric oscillation by use of the periodical domain inversion portion (15). The refractive index of the part of nonlinear crystal body (1) between the phase adjustment electrodes (9A and 9B) is changed by changing the voltage between the electrodes (9A and 9B), and the frequency of resonance over the full length (Lt) of the path (2) is thus adjusted. The Q-switching of oscillation light (P) is conducted by changing the refractive index of an oblique crossing portion of the oblique side (G) of the electrode (12A) and the path (2) by changing the voltage between the Q switch electrodes (12A and 12B).

摘要翻译： 本发明的光学装置不需要与通过非线性光学晶体输出具有与输入光的频率不同的频率的常规光学装置不需要复杂的调整。 用于Q开关的电极（12A和12B），用于相位调节的电极（9A和9B）和周期性域反转部分（15）设置在具有非线性光学的光学晶体（1）内的路径（2）中的预定位置 性能，电光性能和激光活性。 通过输入从输入侧（3）给出的光（P0）产生振荡光（P1），并且从输出侧（4）输出具有与输入光（P0）的频率不同的频率的输出光（P2） ）通过非线性光学特性以及通过使用周期性域反转部分（15）产生谐波或通过光学参数振荡。 通过改变电极（9A和9B）之间的电压和全长（Lt）的共振频率来改变相位调整电极（9A和9B）之间的非线性晶体（1）的一部分的折射率， 的路径（2）。 振荡光（P）的Q转换是通过改变电极（12A）的倾斜侧（G）和路径（2）的倾斜交叉部分的折射率来改变Q开关电极 （12A和12B）。

公开(公告)号：EP0532969B1

公开(公告)日：1997-12-17

申请号：EP92114873.0

申请日：1992-08-31

申请人： FUJITSU LIMITED

发明人： Sawaki, Ippei, c/o FUJITSU LIMITED ,  Kurimura, Sunao, c/o FUJITSU LIMITED ,  Miura, Michio, c/o FUJITSU LIMITED

IPC分类号： G02F1/05 ,  G02F1/37 ,  H01L41/24 ,  H01G7/06

CPC分类号： H01G7/06 ,  G02F1/3558 ,  G02F1/3775 ,  G02F2001/3548 ,  H01L41/257 ,  Y10T29/42

公开(公告)号：EP0725307A3

公开(公告)日：1997-08-20

申请号：EP96100348.0

申请日：1996-01-11

申请人： Oki Electric Industry Co., Ltd.

发明人： Shinozaki, Keisuke ,  Xu, Chang-Qing ,  Sasaki, Hironori

IPC分类号： G02F1/37 ,  G02B5/00

CPC分类号： G02B3/06 ,  G02B5/001 ,  G02B5/1876 ,  G02B27/4277 ,  G02F1/3534 ,  G02F1/37 ,  G02F2001/3548

摘要： A non-diffracting beam generator converts coherent light from a semiconductor laser into a small, intense, non-diffracting beam, which is directed into a non-linear optical element. The non-linear optical element converts this beam to light of a different wavelength. The non-linear optical element is a bulk element, not having an internal waveguide, and not requiring precise alignment of the non-diffracting beam. The non-diffracting beam preferably has a length matching the thickness of the non-linear optical element.

公开(公告)号：EP0505453B1

公开(公告)日：1997-03-05

申请号：EP91901373.0

申请日：1990-12-07

申请人： E.I. DU PONT DE NEMOURS AND COMPANY

发明人： BIERLEIN, John, David ,  LAUBACHER, Daniel, B.

IPC分类号： G02F1/37

CPC分类号： G02F1/3775 ,  G02F1/3553 ,  G02F1/37 ,  G02F2001/3548

摘要： Articles and process for wavelength conversion are disclosed which use a series of aligned sections of optical materials which are suitably balanced over the series with regard to the section length and the section Δk (i.e. the difference between the sum of the propagation constants for the incident waves and the sum of the propagation constants for the waves generated). The sections are selected such that the sum for the series of the product of the length of each section with the Δk is equal to about zero, and the length of each section is less than its coherence length. Embodiments are disclosed wherein at least one of the optical materials is optically nonlinear and/or wherein a layer of nonlinear optical material is provided adjacent to the series of sections. Also disclosed is a process for preparing a channel waveguide for wavelength conversion systems wherein areas along a portion of a crystal substrate surface used for forming the desired channel are alternately masked and unmasked during cation replacement by immersion in a molten salt.

公开(公告)号：EP0699934A3

公开(公告)日：1996-08-14

申请号：EP95113603.5

申请日：1995-08-30

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： Mizuuchi, Kiminori ,  Yamamoto, Kazuhisa

IPC分类号： G02F1/05 ,  G02F1/37 ,  C30B30/00

CPC分类号： G02F1/3775 ,  G02F1/3558 ,  G02F1/37 ,  G02F1/377 ,  G02F2001/3548

摘要： A comb-shaped electrode and a planar electrode are formed on a surface and a bottom face of a substrate. Then, a DC voltage on which a pulse voltage is superimposed is applied to the electrodes using a DC power source and a pulse power source so as to apply a DC electric field on which a pulse electric field is superimposed to the substrate. As a result, periodic domain-inverted regions are formed by applying even a small pulse electric field. Since the applied electric field is highly uniform in a face of the substrate, the domain-inverted regions having a uniform periodic structure are formed. Alternatively, after the comb-shaped electrode is covered with an insulating film, the pulse voltage is applied to the electrodes using the pulse power source so as to apply the pulse electric field to the substrate. As a result, since movement of free charges in the surface of a crystal is restrained so as to inhibit the spread of domain inversion in a horizontal direction, a uniform short-periodic domain-inverted structure is formed. According to the present invention, deep short-periodic domain-inverted regions are uniformly formed over a large area of the substrate. As a result, an optical wavelength conversion device having a short wavelength with high efficiency can be manufactured.

摘要翻译： 为了制造一个wavelenghth转换装置（1000）要么是薄铁电影片（30）被外延生长在到光导基片（32）或铁电晶体接合在光学基材上，然后减薄通过抛光。 在强电介质薄电影，周期性畴反向区域（9）的创建和光学脊形波导（30A）由etching.In为了制造wavelenghth转换装置（1000）要么是薄铁电影片（30）形成的 外延生长到光导基片（32）或铁电晶体接合在光学基材上，然后通过抛光减薄。 在强电介质薄电影，周期性畴反向区域（9）的创建和光学脊形波导（30A）是通过蚀刻而形成。

公开(公告)号：EP0712184A2

公开(公告)日：1996-05-15

申请号：EP95109139.6

申请日：1995-06-13

申请人： FUJI PHOTO FILM CO., LTD.

发明人： Hyuga, Hiroaki, c/o Fuji Photo Film Co., Ltd.

IPC分类号： H01S3/109

CPC分类号： H01S3/109 ,  G02F2001/3548 ,  H01S3/1673

摘要： A wavelength-conversion laser capable of maintaining a single longitudinal mode even when the temperature of a resonator changes. The wavelength-conversion laser is made up of a solid-state laser crystal doped with Neodymium which is pumped by light, a nonlinear optical crystal disposed in a resonator for converting the wavelength of a solid-state laser beam emanated from the solid-state laser crystal, and an etalon disposed in the resonator for realizing a single longitudinal mode. The nonlinear optical crystal is a crystal, which effects type-I phase-matching, such as MgO:LiNbO₃ crystal. Moreover, the nonlinear optical crystal possesses periodic domain reversals.

摘要翻译： 即使当谐振器的温度改变时，能够保持单个纵向模式的波长转换激光器。 波长转换激光器由掺杂有被汲取的钕的固体激光晶体组成，设置在谐振器中的非线性光学晶体，用于转换从固态激光器发出的固态激光束的波长 晶体和设置在谐振器中的标准具，用于实现单个纵向模式。 非线性光学晶体是一种晶体，它会影响I型相位匹配，如MgO：LiNbO3晶体。 此外，非线性光学晶体具有周期性畴反转。

公开(公告)号：EP0683595A2

公开(公告)日：1995-11-22

申请号：EP95105829.6

申请日：1995-04-19

申请人： DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V.

发明人： Opower, Hans, Prof. Dr. ,  Becker, Uwe, Dr. rer. nat ,  Brauch, Uwe, Dr. rer. nat

IPC分类号： H04N1/04

CPC分类号： G03F7/70391 ,  B41J2/473 ,  G02F1/377 ,  G02F2001/3548 ,  H01S5/18305 ,  H01S5/4012 ,  H04N9/3129

摘要： Um eine Vorrichtung zur Erzeugung eines insbesondere für ein menschliches Auge sichtbaren Bildes in einer Bildfläche, umfassend eine Strahlungsquelle, welche über eine Projektionsoptik in dem Bild mindestens eine Bildreihe durch Ausleuchten einzelner nebeneinander liegender Bildflecken erzeugt, derart zu verbessern, daß die Bilderzeugung möglichst einfach und daher auch kostengünstig möglich ist, wird vorgeschlagen, daß zur Ausleuchtung der Bildflecken der Bildreihe eine eine Vielzahl von Halbleiteremittern umfassende Leuchtreihe vorgesehen ist, daß die Projektionsoptik mindestens einen Austrittsfleck für die Strahlung jedes Halbleiteremitters einem der Bildflecken zuordnet und daß die Projektionsoptik die Austrittsflecken aller Halbleiteremitter der Leuchtreihe gleichzeitig auf die diesen zugeordneten Bildflecken abbildet.

摘要翻译： 图像由多个具有从具有单独的控制线（24）的半导体发射器（20）的行（16）的透镜（28）投影到表面（14）上的多个点（34） 控制器（22）。 单个斑点的亮度例如变化。 通过来自公共电流源的每个控制线中的FET。 镜头是前置 使得从各个发射器投射的光斑在纵向方向（36）上不重叠，而是连续的或分开的。 狭窄的空间。