公开(公告)号：US5214724A

公开(公告)日：1993-05-25

申请号：US661602

申请日：1991-02-28

Applicant: Minoru Seino ,  Naoyuki Mekada ,  Tadao Nakazawa ,  Yoshinobu Kubota ,  Masaharu Doi

Inventor： Minoru Seino ,  Naoyuki Mekada ,  Tadao Nakazawa ,  Yoshinobu Kubota ,  Masaharu Doi

IPC: G02B6/12 ,  G02F1/035 ,  G02F1/21 ,  G02F1/225

CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F1/21 ,  G02F1/2255 ,  G02F2201/066 ,  G02F2203/21

Abstract: An optical waveguide device includes an optical waveguide formed on a surface of a substrate having an electrooptical effect, and a pair of electrodes formed on corresponding regions above the optical waveguide and receiving a driving electric signal thereacross. By applying the electric signal to the electrodes, an electric field is formed in a vicinity of the optical waveguide. By changing a distribution of the electric field in accordance with a change in a frequency of the electric signal, it is possible to suppress a DC drift of the device to effectively compensate a fluctuation in operational characteristics due to the DC drift, stress of the like.

公开(公告)号：US5214723A

公开(公告)日：1993-05-25

申请号：US828018

申请日：1992-01-30

Applicant: Frederic Zamkotsian

Inventor： Frederic Zamkotsian

IPC: G02F1/015 ,  G02F1/01 ,  G02F1/025 ,  H01S3/02 ,  H01S5/00 ,  H01S5/02 ,  H01S5/30

CPC classification number: G02F1/025 ,  G02F2001/0142 ,  G02F2201/066 ,  G02F2201/12

Abstract: An electro-optic device incorporating a waveguide includes a locating electrode formed on a plate for locating an electrical phenomenon in a waveguide carried by the plate. The electrode comprises two juxtaposed flat surfaces, namely a locating surface relatively close to the waveguide and which has a relatively high electrical resistivity and a connection surface relatively far from the waveguide and which has a relatively low electrical resistivity. This juxtaposition makes it possible to eliminate at least partially deformation and/or attenuation of the guided waves. Applications of the invention include the implementation of a polarization modulator.

Abstract translation: 结合波导的电光装置包括形成在板上的定位电极，用于定位由该板承载的波导中的电现象。 电极包括两个并置的平坦表面，即相对靠近波导的定位表面，并且具有相对高的电阻率和与波导相对较远并且具有相对较低电阻率的连接表面。 这种并置使得可以消除至少部分导波的变形和/或衰减。 本发明的应用包括实现偏振调制器。

公开(公告)号：US5153930A

公开(公告)日：1992-10-06

申请号：US460759

申请日：1990-01-04

Applicant: Richard E. DuPuy ,  Harold R. Gilles ,  Edwin Boyd Osgood

Inventor： Richard E. DuPuy ,  Harold R. Gilles ,  Edwin Boyd Osgood

IPC: G02F1/035 ,  G02F1/225 ,  G02F1/313

CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F1/3132 ,  G02F2201/066 ,  G02F2201/07 ,  G02F2202/20 ,  G02F2203/21

Abstract: An article is manufactured from a substrate of a material that exhibits the pyroelectric effect by depositing a film containing a selected material in a first state over a front surface of the substrate. At least one electrode is formed on the film, portions of the film being exposed around the electrode. The exposed portions of the film are subjected to a treatment such that they are converted from the first state to a second state, in which the material has a resistivity that lies within a desired range of values.

Abstract translation: 通过在衬底的前表面上沉积包含选定材料的膜在第一状态下，通过从表现出热电效应的材料的衬底制造制品。 在膜上形成至少一个电极，膜的部分暴露在电极周围。 对膜的暴露部分进行处理，使得它们从第一状态转变为第二状态，其中材料具有位于期望值范围内的电阻率。

公开(公告)号：US4907849A

公开(公告)日：1990-03-13

申请号：US233519

申请日：1988-08-18

Applicant: Alan D. Kersey ,  Catherine Bulmer ,  Anthony Dandridge

Inventor： Alan D. Kersey ,  Catherine Bulmer ,  Anthony Dandridge

IPC: G02F1/01 ,  G02F1/035

CPC classification number: G02F1/035 ,  G02F2001/0144 ,  G02F2201/066

Abstract: An integrated-optic, polarization-selective phase modulator is disclosed. a preferred embodiment of the invention a channel waveguide provides a path therethrough for polarized light having horizontal and vertical polarization components, and an electrode structure is disposed above the channel waveguide and is responsive to the application of a control voltage to the electrode structure for substantially phase modulating only the vertical component of the polarized light.

Abstract translation: 公开了一种集成光学偏振选择相位调制器。 在本发明的优选实施例中，通道波导为具有水平和垂直偏振分量的偏振光提供穿过其中的通路，并且电极结构设置在通道波导上方，并且响应于向电极结构施加控制电压， 只调制偏振光的垂直分量。

公开(公告)号：US4791388A

公开(公告)日：1988-12-13

申请号：US43190

申请日：1987-04-27

Applicant: Norman A. Sanford ,  Amaresh Mahapatra

Inventor： Norman A. Sanford ,  Amaresh Mahapatra

IPC: G02F1/01 ,  G02F1/035 ,  G02B5/14

CPC classification number: G02F1/035 ,  G02F2001/0142 ,  G02F2201/066

Abstract: An optical modulator comprises a crystal whose top surface includes a channel waveguide whose axis makes an angle with the crystal optic axis larger than the critical angle for TE-polarized leaky mode propagation. An electrode structure overlies the top surface of the crystal for inducing mode conversion of TM-polarized waves propagating in the waveguide to lossy radiation modes.

公开(公告)号：US4775208A

公开(公告)日：1988-10-04

申请号：US906931

申请日：1986-09-15

Applicant: William C. Robinson ,  Norman A. Sanford

Inventor： William C. Robinson ,  Norman A. Sanford

IPC: G02B6/12 ,  G02F1/01 ,  G02F1/035 ,  G02B6/10 ,  G02B5/30

CPC classification number: G02F1/035 ,  G02F2201/066 ,  G02F2201/07

Abstract: A planar waveguide device including metallic electrodes has a buffer layer of reduced ordinary index of refraction formed in a substrate between its waveguide and electrodes. The device is preferably formed by first fabricating the waveguide in an x-or y-cut substrate of crystalline material, subsequently overcoating the substrate, including the waveguide, with a layer of magnesium, oxidizing the magnesium at temperature to form the buffer layer and then laying the electrodes over the buffer layer. Alternatively, the buffer layer may be formed by a proton exchange process.

Abstract translation: 包括金属电极的平面波导器件具有在其波导和电极之间的衬底中形成的具有降低的普通折射率的缓冲层。 优选地，该器件通过首先在晶体材料的x或y切割衬底中制造波导来形成，随后用包含该镁的镁层将衬底（包括波导）外涂，在温度下氧化镁以形成缓冲层，然后 将电极放置在缓冲层上。 或者，缓冲层可以通过质子交换工艺形成。

公开(公告)号：US4607909A

公开(公告)日：1986-08-26

申请号：US620619

申请日：1984-06-14

Applicant: Norman A. Sanford

Inventor： Norman A. Sanford

IPC: G02B6/14 ,  G02F1/03 ,  G02F1/035 ,  G02F1/05 ,  G02F1/313 ,  H04B10/00 ,  H04B10/04 ,  H04B10/06 ,  H04B10/142 ,  H04B10/152 ,  G02B6/10

CPC classification number: G02F1/035 ,  G02F1/3137 ,  G02F2201/066 ,  Y10S359/90

Abstract: A method for externally modulating an optical carrier wave by propagating the wave through a single channel waveguide structured to have an output whose optical power in the near field is distributed in a predetermined spatial pattern, selectively changing the optical power distribution pattern in correspondence with an information signal, and spatially filtering the power distribution pattern so that only the power available within selected region of the pattern is transmitted beyond the point of spatial filtering where it is available as an optical carrier wave whose intensity is modulated in correspondence with the information signal.

Abstract translation: 通过将波形传播通过构造成具有近场中光功率的输出以预定的空间图案分布的输出的单通道波导来外光调制光载波的方法，根据信息选择性地改变光功率分布图案 信号和空间滤波功率分布图案，使得只有在图案的选定区域内可用的功率超过空间滤波点才能被发送，其中可用作为其强度与信息信号对应的强度的光载波。