Optical switch
    41.
    发明授权
    Optical switch 失效
    光开关

    公开(公告)号:US5444802A

    公开(公告)日:1995-08-22

    申请号:US341929

    申请日:1994-11-16

    IPC分类号: G02F1/35 G02B6/00

    摘要: A grating optical switch has at least one switch region for ON-OFF switch control of a signal light transmission and a signal light reflection, at least one input/output optical waveguide region for guiding the signal light to the switch, at least one coupler region for coupling the control light colinearly to the signal light and for guiding the control light to the switch region together with the signal light, and at least one separator region for separating the signal light and the control light. The switch region transmits the signal light when the control light is coupled while reflecting the signal light when the control light is not coupled.

    摘要翻译: 光栅光开关具有用于信号光透射和信号光反射的ON-OFF开关控制的至少一个开关区域,用于将信号光引导至开关的至少一个输入/输出光波导区域,至少一个耦合器区域 用于将控制光共线耦合到信号光并将控制光与信号光一起引导到开关区域,以及用于分离信号光和控制光的至少一个分离器区域。 当控制光不耦合时,开关区域发射信号光,同时在控制光不耦合时反射信号光。

    Optical switch
    42.
    发明授权
    Optical switch 失效
    光开关

    公开(公告)号:US4778235A

    公开(公告)日:1988-10-18

    申请号:US683100

    申请日:1984-12-18

    申请人: Masahiko Fujiwara

    发明人: Masahiko Fujiwara

    摘要: An optical switch having a plurality of channel waveguides. At least one of which is a gain-guided channel waveguide. In operation, a light beam incident on one end face of the optical switch through one of the channel waveguides exits from the switch through one or another of the channel waveguides in accordance with current injected into the gain-guided channel waveguide. As a result, a compact low-voltage optical switch is possible. The channel waveguides may run parallel to each other, or may come together in a center portion in a X-shape, separated by a relatively small distance, or as a third alternative may be formed in a Y-shape, with a small distance separating the branches of said Y-shape.

    摘要翻译: 具有多个通道波导的光开关。 其中至少一个是增益引导通道波导。 在操作中,入射到通过一个通道波导的光开关的一个端面上的光束根据注入增益引导通道波导中的电流,从开关通过一个或另一个通道波导输出。 结果,紧凑型低压光开关成为可能。 沟道波导可以彼此平行地延伸,或者可以以相对较小的距离分开的X形的中心部分一起,或者作为第三替代物可以形成为Y形,其间隔小 所述Y形的分支。

    Electrostatically biased electrooptical devices
    43.
    发明授权
    Electrostatically biased electrooptical devices 失效
    静电偏置电光装置

    公开(公告)号:US4714312A

    公开(公告)日:1987-12-22

    申请号:US864231

    申请日:1986-05-19

    申请人: Suwat Thaniyavarn

    发明人: Suwat Thaniyavarn

    IPC分类号: G02F1/03 G02F1/035 G02B6/12

    摘要: A structure and a corresponding method for producing a permanent electric biasing field in an electrooptical device. Electrodes are embedded in an insulating layer formed over the device, which includes a substrate of electrooptical material and an optical waveguide formed in the substrate. The electrodes are electrostatically charged and encapsulated in the insulating layer, to produce the desired electric field without the need for an external voltage source.

    摘要翻译: 一种用于在电光装置中产生永久电偏置场的结构和相应方法。 电极嵌入在器件上形成的绝缘层中,该绝缘层包括电光材料基片和形成在基片中的光波导。 电极被静电充电并封装在绝缘层中,以产生所需的电场而不需要外部电压源。

    Thermo-optic phase shifter for semiconductor optical waveguide

    公开(公告)号:US10095056B1

    公开(公告)日:2018-10-09

    申请号:US15498274

    申请日:2017-04-26

    IPC分类号: G02F1/01

    摘要: Embodiments include a method and associated apparatuses for phase-shifting an optical signal. The method comprises receiving, at a first end of an optical waveguide formed in a semiconductor layer and extending along a first axis, an optical signal having a first phase. The method further comprises transmitting, at a second end of the optical waveguide opposite the first end, a modified optical signal having a second phase different than the first phase. Transmitting a modified optical signal comprises applying a voltage signal between a first contact region and a second contact region formed in the semiconductor layer apart from the first axis. Applying a voltage signal causes an electrical current to be conducted along a dimension of the optical waveguide. The electrical current causes resistive heating of the optical waveguide and a desired phase shift between the first phase and the second phase.

    Method for manufacturing semiconductor optical modulator and semiconductor optical modulator
    47.
    发明授权
    Method for manufacturing semiconductor optical modulator and semiconductor optical modulator 有权
    制造半导体光调制器和半导体光调制器的方法

    公开(公告)号:US08731344B2

    公开(公告)日:2014-05-20

    申请号:US13478280

    申请日:2012-05-23

    申请人: Hideki Yagi

    发明人: Hideki Yagi

    摘要: A method for manufacturing a semiconductor optical modulator includes forming a p-type semiconductor layer on a main surface of a p-type semiconductor substrate; forming a pair of stripe-shaped masks on the p-type semiconductor layer, the stripe-shaped masks extending in a first direction along the main surface of the p-type semiconductor substrate and being spaced apart from each other; simultaneously forming a hole and a pair of stripe structures extending in the first direction by etching the p-type semiconductor layer through the stripe-shaped masks, the pair of stripe structures defining the hole; after removing the stripe-shaped masks, forming a buried layer in the hole; forming a core layer on the buried layer and the stripe structures; and forming an upper cladding layer on the core layer. The buried layer is made of a semiconductor material with a lower optical absorption loss than that of the p-type semiconductor layer.

    摘要翻译: 一种制造半导体光调制器的方法包括在p型半导体衬底的主表面上形成p型半导体层; 在p型半导体层上形成一对条形掩模,所述条形掩模沿着所述p型半导体衬底的主表面沿第一方向延伸并且彼此间隔开; 同时形成通过蚀刻p型半导体层通过条形掩模在第一方向延伸的孔和一对条纹结构,所述一对条纹结构限定该孔; 在去除条形掩模之后,在孔中形成掩埋层; 在掩埋层和条纹结构上形成核心层; 以及在所述芯层上形成上包层。 埋层由具有比p型半导体层低的光吸收损耗的半导体材料制成。

    Optical control device
    48.
    发明授权
    Optical control device 有权
    光控装置

    公开(公告)号:US08644647B2

    公开(公告)日:2014-02-04

    申请号:US12225787

    申请日:2007-03-30

    IPC分类号: G02F1/035

    摘要: It is an object to provide an optical control device capable of realizing speed matching between a microwave and a light wave or impedance matching of microwaves and of reducing a driving voltage. An optical control device including a thin plate 1 (11) which has an electro-optical effect and has a thickness of 10 μm or less, an optical waveguide 2 formed in the thin plate, and control electrodes for controlling light passing through the optical waveguide is characterized in that the control electrodes are configured to include a first electrode and a second electrode disposed to interpose the thin plate therebetween, the first electrode has a coplanar type electrode including at least a signal electrode 4 and a ground electrode 5, and the second electrode has at least a ground electrode 54 (55, 56) and is configured to apply an electric field to the optical waveguide in cooperation with the signal electrode of the first electrode.

    摘要翻译: 本发明的目的是提供一种能够实现微波和光波之间的速度匹配或微波的阻抗匹配以及降低驱动电压的光学控制装置。 一种光学控制装置,包括具有电光效应并且具有10μm或更小的厚度的薄板1(11),形成在薄板中的光波导2和用于控制通过光波导的光的控制电极 其特征在于,控制电极被配置为包括第一电极和设置成将薄板夹在其间的第二电极,第一电极具有至少包括信号电极4和接地电极5的共面型电极,第二电极 电极至少具有接地电极54(55,56),并且被配置为与第一电极的信号电极协作地向光波导施加电场。

    Waveguide type optical device
    49.
    发明授权
    Waveguide type optical device 有权
    波导型光学器件

    公开(公告)号:US08358891B2

    公开(公告)日:2013-01-22

    申请号:US12747953

    申请日:2008-11-20

    IPC分类号: G02B6/26 G02B6/10

    摘要: There is provided a waveguide type optical device whose parasitic capacitance is reduced to allow an increase in signal transmission speed. Bottom electrode 41 is formed on substrate 2, bottom cladding 51 is formed on bottom electrode 41, and bottom core 62 is formed on bottom cladding 51. Top core 61 is formed on bottom core 62, top cladding 53 is formed on top core 61, and top electrode 42 is formed on top cladding 53. Two sides of top core 61 and bottom core 62 are covered with side cladding layer 52. Vertically overlapping portions of top electrode 42 and bottom electrode 41 are located almost at a same place as a region for a core layer composed of top core 61 and bottom core 62. The width of one from among top core 61 and bottom core 62 is satisfying a single mode condition, and the width of the other is almost equal to or more than the width of a field distribution.

    摘要翻译: 提供了一种其寄生电容减小以允许信号传输速度增加的波导型光学器件。 底部电极41形成在基板2上,底部包层51形成在底部电极41上,底部芯62形成在底部包层51上。顶部芯61形成在底部芯62上,顶部包层53形成在顶部芯61上, 并且顶部电极42形成在顶部包层53上。顶部芯61和底部芯62的两侧被侧包层52覆盖。顶部电极42和底部电极41的垂直重叠的部分几乎位于与区域 用于由顶芯61和底芯62组成的芯层。顶芯61和底芯62之一的宽度满足单模状态,另一个的宽度几乎等于或大于 一个现场分配。

    METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL MODULATOR AND SEMICONDUCTOR OPTICAL MODULATOR
    50.
    发明申请
    METHOD FOR MANUFACTURING SEMICONDUCTOR OPTICAL MODULATOR AND SEMICONDUCTOR OPTICAL MODULATOR 有权
    制造半导体光学调制器和半导体光学调制器的方法

    公开(公告)号:US20120308173A1

    公开(公告)日:2012-12-06

    申请号:US13478280

    申请日:2012-05-23

    申请人: Hideki YAGI

    发明人: Hideki YAGI

    IPC分类号: G02F1/025 H01L21/302

    摘要: A method for manufacturing a semiconductor optical modulator includes forming a p-type semiconductor layer on a main surface of a p-type semiconductor substrate; forming a pair of stripe-shaped masks on the p-type semiconductor layer, the stripe-shaped masks extending in a first direction along the main surface of the p-type semiconductor substrate and being spaced apart from each other; simultaneously forming a hole and a pair of stripe structures extending in the first direction by etching the p-type semiconductor layer through the stripe-shaped masks, the pair of stripe structures defining the hole; after removing the stripe-shaped masks, forming a buried layer in the hole; forming a core layer on the buried layer and the stripe structures; and forming an upper cladding layer on the core layer. The buried layer is made of a semiconductor material with a lower optical absorption loss than that of the p-type semiconductor layer.

    摘要翻译: 一种制造半导体光调制器的方法包括在p型半导体衬底的主表面上形成p型半导体层; 在p型半导体层上形成一对条形掩模,所述条形掩模沿着所述p型半导体衬底的主表面沿第一方向延伸并且彼此间隔开; 同时形成通过蚀刻p型半导体层通过条形掩模在第一方向延伸的孔和一对条纹结构,所述一对条纹结构限定该孔; 在去除条形掩模之后,在孔中形成掩埋层; 在掩埋层和条纹结构上形成核心层; 以及在所述芯层上形成上包层。 埋层由具有比p型半导体层低的光吸收损耗的半导体材料制成。