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公开(公告)号：US20110243493A1
公开(公告)日：2011-10-06
申请号：US13065737
申请日：2011-03-29
IPC分类号： G02B6/10
CPC分类号： G02B6/126 , G02B2006/1204 , G02B2006/12061 , G02B2006/12097
摘要： The waveguide-type polarizer includes: a Z-cut lithium niobate substrate; an optical waveguide having a ridge structure and formed on the substrate; a low refractive index film formed with a thickness satisfying 0≦n·t/λ≦0.3742 (where n is a refractive index, t (μm) is the thickness of the film, and λ (μm) is the wavelength of a light wave) on the side of the ridge structure; and a high refractive index film formed with a thickness satisfying 0.089≦n·/λ on the low refractive index film. The width of the ridge structure is a ridge width where the distribution of ordinary light of the light waves propagated through the optical waveguide changes and the distribution of extraordinary light of the light waves does not change, the angle of the ridge structure is less than 90°, and the waveguide-type polarizer has a function of transmitting extraordinary light.
摘要翻译： 波导型偏振器包括：Z切割的铌酸锂基板; 具有脊结构并形成在所述基板上的光波导; 形成厚度满足0＆nlE的低折射率膜; n·t /λ＆nlE; 0.3742（其中n是折射率，t（μm）是膜的厚度，λ（μm）是光波长 ）在脊结构的一侧; 以及在低折射率膜上形成厚度满足0.089
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公开(公告)号：US20100239218A1
公开(公告)日：2010-09-23
申请号：US12661590
申请日：2010-03-19
CPC分类号： G02B6/1342 , G02B2006/1204
摘要： To provide an optical waveguide device which can allow a light-receiving element to be precisely aligned with a diffused waveguide formed in a dielectric substrate to implement an evanescent coupling light-receiving element. An optical waveguide device includes a dielectric substrate 1, a diffused waveguide 2 formed by thermally diffusing a high-refractive material into the dielectric substrate, and a light-receiving element 4 which is disposed above the diffused waveguide and which receives a part of an optical wave propagating in the diffused waveguide. Here, at least a part 3 of a pedestal 3 and 5 supporting the light-receiving element above the dielectric substrate is formed by disposing the high-refractive material in a predetermined pattern in the vicinity of the diffused waveguide and thermally diffusing the high-refractive material at the same time as forming the diffused waveguide.
摘要翻译： 为了提供一种光波导器件，其可以使光接收元件与形成在电介质基片中的扩散波导精确对准，以实现渐逝耦合光接收元件。 光波导器件包括电介质基片1，通过将高折射材料热扩散到电介质基片中而形成的扩散波导2，以及设置在扩散波导上方的光接收元件4，该光接收元件4接收一部分光学 波在扩散波导中传播。 这里，通过在扩散波导附近设置预定图案的高折射材料，并且将高折射率材料热扩散，形成支撑介质基板上方的受光元件的台座3和5的至少一部分3 材料同时形成扩散波导。
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公开(公告)号：US20090129718A1
公开(公告)日：2009-05-21
申请号：US11992866
申请日：2006-09-27
CPC分类号： G02F1/035 , G02F1/2255 , G02F2201/066 , G02F2201/127 , G02F2202/28 , G02F2203/21
摘要： It is an object of the invention to provide a light modulator using a thin plate having a thickness of 20 μm or less and capable of stably holding a conductive film suppressing troubles such as resonance phenomenon of microwaves in a substrate and pyro-electric phenomenon and to provide a method of fabricating the light modulator. The light modulator includes: a thin plate (10) formed of a material having an electro-optic effect and having a thickness of 20 μm or less; a light waveguide (11) formed on the front or rear surface of the thin plate; and modulation electrodes (13, 14) formed on the front surface of the thin plate to modulate light passing through the light waveguide. The light modulator further includes a reinforcing plate (16) bonded to the rear surface of the thin plate and a conductive film (17) continuously formed in the range from the side surface of the thin plate to the side surface of the reinforcing plate.
摘要翻译： 本发明的目的是提供一种使用厚度为20μm或更小的薄板的光调制器，并且能够稳定地保持抑制诸如基板中的微波共振现象和热电现象等的麻烦的导电膜，并且 提供一种制造光调制器的方法。 光调制器包括：由具有电光效应并具有20μm或更小的厚度的材料形成的薄板（10）; 形成在所述薄板的前表面或后表面上的光波导（11） 以及形成在薄板的前表面上的调制电极（13,14），以调制通过光波导的光。 光调制器还包括粘合到薄板的后表面的加强板（16）和在从薄板的侧表面到加强板的侧表面的范围内连续形成的导电膜（17）。
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公开(公告)号：US07444039B2
公开(公告)日：2008-10-28
申请号：US11389380
申请日：2006-03-24
IPC分类号： G02F1/035
CPC分类号： G02F1/035 , G02B2006/12145 , G02B2006/12147 , G02F2001/212
摘要： An optical modulator capable of efficiently separating radiation light and propagation light from each other or removing the radiation light in the optical modulator to suppress loss of the optical modulator and deterioration of an extinction ratio, including a thin plate of a material having an electrooptic effect and a thickness of 20 μm or less; an optical waveguide formed in a top surface or a bottom surface of the thin plate; and a modulation electrode formed in the top surface of the thin plate to modulate light which propagates in the optical waveguide, the optical waveguide has an optical junction portion in which a plurality of optical waveguide portions are joined together and, for shielding a portion of radiation light radiated from the optical junction portion, a concave portion or through-hole in the thin plate.
摘要翻译： 一种光调制器，其能够有效地将辐射光和传播光彼此分离或去除光调制器中的辐射光，以抑制光调制器的损耗和消光比的劣化，包括具有电光效应的材料的薄板和 厚度20μm以下; 形成在薄板的顶表面或底表面中的光波导; 以及调制电极，形成在所述薄板的上表面，以调制在所述光波导中传播的光，所述光波导具有光接合部，所述光接合部中多个光波导部接合在一起，并且用于屏蔽所述辐射的一部分 从光学接合部辐射的光，薄板中的凹部或通孔。
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公开(公告)号：US20070014014A1
公开(公告)日：2007-01-18
申请号：US11367261
申请日：2006-03-03
申请人： Futoshi Yamamoto , Katsutoshi Kondou , Junichiro Ichikawa , Masaru Nakamura , Sunao Kurimura , Shunji Takekawa , Kenji Kitamura
发明人： Futoshi Yamamoto , Katsutoshi Kondou , Junichiro Ichikawa , Masaru Nakamura , Sunao Kurimura , Shunji Takekawa , Kenji Kitamura
CPC分类号： G02B6/1342
摘要： An object of the present invention is to provide an optical device having high quality, excellent productivity and optical characteristics, and capable of suppressing a refractive index of a substrate surface from increasing when a dopant is thermally diffused into, or a heat treatment is performed in order to compensate of process distortion in stoichiometric lithium niobate crystal or a crystal substrate in which Mg is doped into the crystal, and a method of manufacturing the same. According to the present invention, there is provided a method of manufacturing an optical device including the steps of: forming a dopant layer on a substantial stoichiometric lithium niobate single crystal substrate; and diffusing a dopant in the dopant layer into at least a portion of the substantial stoichiometric lithium niobate single crystal substrate, wherein, in the diffusing step, a heat treatment is performed at a diffusion temperature of 1000° C. to 1200° C. in an atmosphere in which a gas having a dew-point temperature of 0° C. or less is introduced, preferably for a diffusion time of 3 hours or more, and more preferably 3 hours to 24 hours.
摘要翻译： 本发明的目的是提供一种具有高质量，优异的生产率和光学特性的光学器件，并且能够抑制当掺杂剂热扩散时衬底表面的折射率增加，或者在 为了补偿化学计量比的铌酸锂晶体或其中Mg掺杂到晶体中的晶体衬底的工艺失真及其制造方法。 根据本发明，提供了一种制造光学器件的方法，包括以下步骤：在基本上化学计量的铌酸锂单晶衬底上形成掺杂剂层; 并且将掺杂剂层中的掺杂剂扩散到至少一部分实质上的化学计量的铌酸锂单晶衬底中，其中在扩散步骤中，在1000℃至1200℃的扩散温度下进行热处理 引入露点温度为0℃以下的气体的气氛，优选扩散时间为3小时以上，更优选为3小时〜24小时。
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