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    Optical device and method of manufacturing the same
    1.
    发明授权
    Optical device and method of manufacturing the same 失效
    光学装置及其制造方法

    公开(公告)号：US06178035B1

    公开(公告)日：2001-01-23

    申请号：US08955725

    申请日：1997-10-22

    申请人： Akira Eda ,  Kiyofumi Muro

    发明人： Akira Eda ,  Kiyofumi Muro

    IPC分类号： G02F135

    CPC分类号： H01S3/2383 ,  G02B3/0012 ,  G02B3/0018 ,  G02B3/005 ,  G02B3/0056 ,  G02B3/0068 ,  G02B6/1245 ,  G02F1/37 ,  G03F7/0005 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/0627 ,  H01S3/08095 ,  H01S3/09415 ,  H01S3/2308 ,  H01S5/0267 ,  H01S5/18388

    摘要： An optical device includes a light transmitting non-linear optical material having a first face and a second face. The first and second faces oppose each other. The first face has a plurality of first reflecting portions provided thereon, and the second face has a plurality of second reflecting portions provided thereon. Each of the second reflecting portions corresponds to one of the first reflecting portions. Furthermore, the first and second faces are substantially flat except for at least one convex arcuate portion being formed on at least one of the first and second faces. Additionally, at least one of the first and second reflecting portions is obtained by coating a reflective material on the convex arcuate portion.

    摘要翻译： 光学装置包括具有第一面和第二面的透光非线性光学材料。 第一面和第二面相互对立。 第一面具有设置在其上的多个第一反射部，第二面具有设置在其上的多个第二反射部。 每个第二反射部分对应于第一反射部分中的一个。 此外，除了形成在第一和第二面中的至少一个上的至少一个凸形弓形部分之外，第一和第二面基本上是平坦的。 此外，第一和第二反射部分中的至少一个通过在凸弧形部分上涂覆反射材料而获得。

    Optical mirror and optical device using the same
    2.
    发明授权
    Optical mirror and optical device using the same 失效
    光学镜和使用它的光学装置

    公开(公告)号：US5608577A

    公开(公告)日：1997-03-04

    申请号：US633520

    申请日：1996-04-17

    申请人： Akira Eda

    发明人： Akira Eda

    IPC分类号： G02B5/08 ,  G02B5/28 ,  G02B17/06 ,  G02B17/08 ,  G02F1/35 ,  G02F1/37

    CPC分类号： G02F1/37 ,  G02B17/0663 ,  G02B17/0856 ,  G02B5/0833 ,  G02B5/285 ,  G02B5/288 ,  G02F1/3534

    摘要： The present invention provides an optical mirror and an optical device in which the mirror is capable of reflecting a light beam having a plurality of wavelengths with the phase matching condition required for nonlinear optical materials being satisfied, so that a decrease in efficiency due to the phase difference does not generate even if harmonic generation, optical mixing or the like is performed, thereby improving conversion efficiency. The optical mirror includes a plurality of reflection films, e.g., multilayer films 2 and 3, formed on one surface of a transparent substrate, each of which films corresponds to each wavelength of a light beam having a plurality of wavelengths to reflect selectively one of said plurality of wavelengths, wherein a phase difference adjusting layer 4 is formed between the two reflection films 2 and 3, reflecting light beams having different wavelengths. The adjusting layer eliminates the phase difference between a phase of the light beam reflected by the 2 or 3 of the reflection films and a phase of the light beam reflected by the other 3 or 2 of the reflection films. This optical mirror can be suitably applied to second harmonic generation, optical mixing, optical parametric generation and the like because it is capable of reflecting with the phase matching condition required for the nonlinear optical materials being satisfied and has high conversion efficiency.

    摘要翻译： 本发明提供了一种光学镜和光学装置，其中反射镜能够反射具有多个波长的光束，使得满足非线性光学材料所需的相位匹配条件，使得由于相位而导致的效率降低 即使执行谐波产生，光学混合等，也不会产生差异，从而提高转换效率。 光学镜包括多个反射膜，例如形成在透明基板的一个表面上的多层膜2和3，每个膜对应于具有多个波长的光束的每个波长，以选择性地反射所述 多个波长，其中在两个反射膜2和3之间形成相位差调节层4，反射具有不同波长的光束。 调整层消除由2或3个反射膜反射的光束的相位与由另一个3或2个反射膜反射的光束的相位之间的相位差。 由于能够以满足非线性光学材料所需的相位匹配条件反射并具有高转换效率，因此该光学镜可以适用于二次谐波产生，光学混合，光学参数生成等。

    Method of manufacturing an optical device
    3.
    发明授权
    Method of manufacturing an optical device 失效
    制造光学装置的方法

    公开(公告)号：US5728509A

    公开(公告)日：1998-03-17

    申请号：US470273

    申请日：1995-06-06

    申请人： Akira Eda ,  Kiyofumi Muro

    发明人： Akira Eda ,  Kiyofumi Muro

    IPC分类号： G02B3/00 ,  G02B6/124 ,  G02F1/37 ,  G03F7/00 ,  H01S3/05 ,  H01S3/06 ,  H01S3/23 ,  H01S5/10 ,  H01S5/183

    CPC分类号： H01S3/2383 ,  G02B3/0012 ,  G02B3/0018 ,  G02B3/005 ,  G02B3/0056 ,  G02B3/0068 ,  G02B6/1245 ,  G02F1/37 ,  G03F7/0005 ,  H01S3/0627 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/09415 ,  H01S3/2308 ,  H01S5/0267 ,  H01S5/18388

    摘要： At least one convex (or concave) arcuate face is formed by photolithography on a photoresist film formed on a surface of an optical device made of an optical material. The surface of the optical device and the photoresist film are etched to form, on the surface of the optical device, at least one convex (or concave) arcuate face similar to the convex (or concave) arcuate face formed on the photoresist film. After the surface of the optical material is mirror face polished, a photoresist film is formed on the polished surface, and the polished surface and the photoresist film are etched uniformly. An optical device obtained in this manner is used for a laser oscillator, a monolithic laser system, a nonlinear optical device, a microlens, a ring laser and so forth. Further, a plurality of reflecting portions are provided on a pair of opposing surfaces of a light transmitting optical material. At least one of the opposing surfaces is formed on the convex arcuate face. A zigzag optical path is formed between the reflecting portions of the opposing faces of the light transmitting optical material such that it couples the reflecting portions alternately to each other, thereby to obtain an optical device having a long optical path. The optical device is employed as a higher harmonic wave converting device, highly efficient for a short wavelength laser apparatus.

    摘要翻译： 通过光刻法形成在由光学材料制成的光学器件的表面上的光致抗蚀剂膜上形成至少一个凸（或凹）弧形面。 蚀刻光学器件和光致抗蚀剂膜的表面以在光学器件的表面上形成与形成在光致抗蚀剂膜上的凸（或凹）弧形面相似的至少一个凸（或凹）弧形表面。 在光学材料的表面被镜面抛光之后，在抛光表面上形成光致抗蚀剂膜，并且抛光表面和光致抗蚀剂膜被均匀地蚀刻。 以这种方式获得的光学器件用于激光振荡器，单片激光系统，非线性光学器件，微透镜，环形激光器等。 此外，多个反射部分设置在透光光学材料的一对相对表面上。 至少一个相对表面形成在凸形弓形面上。 在透光性光学材料的相对面的反射部分之间形成锯齿形光路，使得它们彼此交替地耦合反射部分，从而获得具有长光路的光学器件。 光学装置被用作高次谐波转换装置，对于短波长激光装置是高效的。

    Solid state laser apparatus
    4.
    发明授权
    Solid state laser apparatus 失效
    固态激光装置

    公开(公告)号：US5430754A

    公开(公告)日：1995-07-04

    申请号：US144512

    申请日：1993-11-02

    申请人： Kenji Suzuki ,  Akira Eda ,  Katsuhiko Shimomura

    发明人： Kenji Suzuki ,  Akira Eda ,  Katsuhiko Shimomura

    IPC分类号： G02F1/37 ,  H01S3/06 ,  H01S3/08 ,  H01S3/098 ,  H01S3/109 ,  H01S3/16 ,  H01S3/05

    CPC分类号： H01S3/109 ,  H01S3/0604 ,  H01S3/0627 ,  H01S3/0805 ,  H01S3/08054 ,  H01S3/08059 ,  H01S3/08063 ,  H01S3/1673

    摘要： A solid state laser apparatus is capable of suppressing a mode hopping phenomena by restricting longitudinal modes except a fundamental mode, thereby providing a very stable output. The solid state laser apparatus includes such components as a semiconductor laser emitting a pumping radiation for exciting a lasant material, a lens systems for focusing the pumping radiation and an optical resonator including a concave mirror. The lasant material may be formed of Nd:YVO.sub.4 doped with approximately 1 at % of Nd and a non-linear optical element may be formed of KTiOPO.sub.4 with an inclined c-axis.

    摘要翻译： 固体激光装置能够通过限制基本模式以外的纵向模式来抑制跳频现象，从而提供非常稳定的输出。 固态激光装置包括诸如发射用于激发野草材料的泵浦辐射的半导体激光器，用于聚焦泵浦辐射的透镜系统和包括凹面镜的光学谐振器的部件。 惰性材料可以由掺杂有大约1at％的Nd的Nd：YVO4形成，并且非线性光学元件可以由具有倾斜c轴的KTiOPO4形成。