公开(公告)号：US07283689B1

公开(公告)日：2007-10-16

申请号：US11479298

申请日：2006-06-29

Applicant: Bruce A. Block ,  Paul Davids

Inventor： Bruce A. Block ,  Paul Davids

IPC: G02F1/035

CPC classification number: G02F1/065 ,  B82Y20/00 ,  G02B6/1221 ,  G02B6/1223 ,  G02F2001/0151 ,  G02F2001/212 ,  G02F2201/066

Abstract: According to embodiments of the present invention, an optical waveguide includes a high dielectric constant core material relative to the cladding material. The cladding material has an index of refraction that is adjustable in response to an electrical stimulus.

Abstract translation: 根据本发明的实施例，光波导包括相对于包层材料的高介电常数芯材料。 包层材料具有响应于电刺激而可调节的折射率。

公开(公告)号：US07224878B1

公开(公告)日：2007-05-29

申请号：US11273152

申请日：2005-11-14

Applicant: Bruce W. Wessels ,  Pingsheng Tang ,  David J. Towner ,  Anthony L. Meier

Inventor： Bruce W. Wessels ,  Pingsheng Tang ,  David J. Towner ,  Anthony L. Meier

IPC: G02B6/10 ,  G02F1/035 ,  G02F1/295

CPC classification number: G02F1/0356 ,  B82Y20/00 ,  G02F2201/063 ,  G02F2201/066 ,  G02F2201/127 ,  G02F2202/36

Abstract: Electro-optic modulator devices and related waveguide components comprising BaTiO3 films.

Abstract translation: 电光调制器装置和包括BaTiO 3膜的相关波导部件。

公开(公告)号：US20060120680A1

公开(公告)日：2006-06-08

申请号：US11333454

申请日：2006-01-17

Applicant: Ruolin Li ,  Ut Tran

Inventor： Ruolin Li ,  Ut Tran

IPC: G02B6/10

CPC classification number: G02F1/065 ,  G02F1/0147 ,  G02F2201/066

Abstract: A polymer well may be formed over a thermal oxide formed over a semiconductor substrate in one embodiment. The well may include a waveguide and a pair of heaters adjacent the waveguide. Each heater may be mounted on a platform of insulating material to reduce heat loss through the substrate and the thermal oxide, in one embodiment.

公开(公告)号：US20050115491A1

公开(公告)日：2005-06-02

申请号：US10919695

申请日：2004-08-16

Applicant: Lee Burrows

Inventor： Lee Burrows

IPC: C30B15/00 ,  C30B33/00 ,  G02B6/12 ,  G02B6/134 ,  G02F1/035 ,  C30B1/00 ,  C30B3/00 ,  C30B5/00 ,  C30B28/02 ,  G02B6/10

CPC classification number: G02F1/035 ,  C30B15/00 ,  C30B29/30 ,  C30B33/00 ,  G02B6/1345 ,  G02B2006/12169 ,  G02F2201/066 ,  G02F2201/07 ,  G02F2202/20 ,  Y10S117/91

Abstract: A method for fabricating ion exchange waveguides, such as lithium niobate or lithium tantalate waveguides in optical modulators and other optical waveguide devices, utilizes pressurized annealing to further diffuse and limit exchange of the ions and includes ion exchanging the crystalline substrate with a source of ions and annealing the substrate by pressurizing a gas atmosphere containing the lithium niobate or lithium tantalate substrate above normal atmospheric pressure, heating the substrate to a temperature ranging from about 150 degrees Celsius to about 1000 degrees Celsius, maintaining pressure and temperature to effect greater ion diffusion and limit exchange, and cooling the structure to an ambient temperature at an appropriate ramp down rate. In another aspect of the invention a powder of the same chemical composition as the crystalline substrate is introduced into the anneal process chamber to limit the crystalline substrate from outgassing alkaline earth metal oxide during the anneal period. In yet another aspect of the invention an anneal container is provided that allows for crystalline substrates to be annealed in the presence of powder without contaminating the substrate with the powder during the anneal process. Waveguides manufactured in accordance with the method exhibit superior drift performance.

Abstract translation: 用于制造离子交换波导的方法，如光调制器和其它光波导器件中的铌酸锂或钽酸锂波导，利用加压退火来进一步扩散和限制离子的交换，并且包括使晶体衬底与离子源离子交换， 通过将含有铌酸锂或钽酸锂衬底的气体气氛加压到正常大气压下来对衬底进行退火，将衬底加热至约150摄氏度至约1000摄氏度的温度，保持压力和温度以实现更大的离子扩散和限制 交换，并以适当的降速率将结构冷却至环境温度。 在本发明的另一方面，将与结晶基底相同的化学组成的粉末引入退火处理室中，以在退火期间限制结晶底物从脱气碱土金属氧化物。 在本发明的另一方面，提供一种退火容器，其允许结晶基材在粉末存在下进行退火，而不会在退火过程中用粉末污染基材。 根据该方法制造的波导显示出优异的漂移性能。

公开(公告)号：US06792167B2

公开(公告)日：2004-09-14

申请号：US10226309

申请日：2002-08-23

Applicant: Mitsutoshi Honda ,  Takashi Naito ,  Tatsuya Sugita ,  Masahiko Ando

Inventor： Mitsutoshi Honda ,  Takashi Naito ,  Tatsuya Sugita ,  Masahiko Ando

IPC: G02F1295

CPC classification number: G02F1/3515 ,  G02F2201/066

Abstract: An optical switch includes at least one light-receiving core for receiving an optical signal, a plurality of light-emitting cores which are used selectively for emitting the optical signal, and a plurality of waveguides connecting the light-receiving core and the plurality of light-emitting cores. A nonlinear optical element which, when pumped, changes its refractive index by 2% or above relative to the surroundings to control a traveling direction of the optical signal is disposed near at least one of the plurality of waveguides.

Abstract translation: 光开关包括用于接收光信号的至少一个光接收芯，用于选择性地发射光信号的多个发光芯，以及连接光接收芯和多个光的多个波导 发射核心。 一种非线性光学元件，当被泵送时，其折射率相对于周围环境改变2％或更高，以控制光信号的行进方向设置在多个波导中的至少一个波导附近。

公开(公告)号：US20030123130A1

公开(公告)日：2003-07-03

申请号：US10302222

申请日：2002-11-22

Inventor： Tsuyoshi Kouchi ,  Takashi Mitsuma

IPC: G02F001/03 ,  G02F001/07 ,  G02F001/00

CPC classification number: G02F1/025 ,  G02F2201/066 ,  G02F2201/07

Abstract: There is provided an optical modulator in which positive holes produced in the valence band are not piled up, the electrostatic capacity can be decreased, the frequency response characteristic is improved, and which is capable of operating at a high speed. In an optical modulator comprising: an n-type clad layer; a stripe-like modulation layer elongated in the direction of light propagation and formed on the top surface of the n-type clad layer; a buffer layer formed on the top surface of the modulation layer; and a p-type clad layer formed on the top surface of the buffer layer, the buffer layer has its composition the band gap energy of which is higher by an energy due to a p-type acceptor level than that of the modulation layer, thereby to remove a difference in band gap energy between the modulation layer and the buffer layer.

Abstract translation: 提供了一种光电调制器，其中在价带中产生的空穴不堆积，可以降低静电容量，提高频率响应特性，并且能够高速运行。 一种光学调制器，包括：n型覆盖层; 在光传播方向上延伸并形成在n型覆盖层的顶表面上的条状调制层; 形成在调制层的上表面上的缓冲层; 以及形成在缓冲层顶表面上的p型覆盖层，缓冲层的组成是由于与受调制层的p型受主电平相比由于p型受主电平而产生的能量较高的带隙能量，因此 以去除调制层和缓冲层之间的带隙能量的差异。

公开(公告)号：US20020159667A1

公开(公告)日：2002-10-31

申请号：US10120137

申请日：2002-04-11

Inventor： Timothy Edwin Van Eck ,  Lawrence Joseph Dries ,  Rebecca Ellen Taylor ,  Wendell Douglas Eades ,  Angelina Sandra Moss

IPC: G02F001/035

CPC classification number: G02F1/065 ,  G02F2201/066 ,  G02F2201/12 ,  G02F2202/07

Abstract: A method of optimizing for achieving maximum sensitivity for poled polymer electro-optic modulator is given by maximizing confinement of optical power in the electro-optic core layer and maximizing lateral field attenuation coefficient in the modulator cladding material.

Abstract translation: 通过最大化电光芯层中的光功率的限制并且最大化调制器包层材料中的横向场衰减系数来给出优化用于极化聚合物电光调制器的最大灵敏度的方法。

公开(公告)号：US20010022681A1

公开(公告)日：2001-09-20

申请号：US09839120

申请日：2001-04-23

Inventor： Hitoshi Tada ,  Tomoko Kadowaki

IPC: G02F001/03 ,  G02F001/07

CPC classification number: G02F1/025 ,  G02F2201/066 ,  G02F2201/122

Abstract: A light modulator having a reduced parasitic static capacitance includes a semiconductor substrate having a mesa section and a bonding pad forming section formed thereon. A primary insulating film is formed on the substrate so as to continuously cover the mesa section and the bonding pad forming section. After a mask has been formed on a portion of the primary insulating film that is above the bonding pad forming section, the remaining portion of the primary insulating film is etched off, followed by removal of the mask. After the removal of the mask, a secondary insulating film is formed so as to continuously cover that portion of the primary insulating film above the bonding pad forming section and the mesa section so that a relatively thick insulating layer can be formed only above the bonding pad forming section.

Abstract translation: 具有减小的寄生静电电容的光调制器包括具有台面部分的半导体衬底和形成在其上的焊盘形成部分。 在基板上形成主绝缘膜，以连续地覆盖台面部分和焊盘形成部分。 在形成在焊盘形成部分上方的初级绝缘膜的一部分上形成掩模之后，将第一绝缘膜的剩余部分蚀刻掉，然后除去掩模。 在去除掩模之后，形成二次绝缘膜，以便连续地覆盖在焊盘形成部分和台面部分上方的一次绝缘膜的部分，使得可以仅在焊盘上方形成相对厚的绝缘层 形成部分。

公开(公告)号：US4958918A

公开(公告)日：1990-09-25

申请号：US294069

申请日：1989-01-03

Applicant: Nigel G. Walker

Inventor： Nigel G. Walker

IPC: G02B26/00 ,  G02F1/01 ,  G02F1/03 ,  G02F1/035

CPC classification number: G02F1/035 ,  G02F1/0136 ,  G02F2201/066

Abstract: Apparatus for processing one or more optical signals to produce a desired polarization transformation on a Poincare sphere has particular application in a receiver for a coherent communication system. One or more birefringent elements (11) receive a polarized optical signal from a local oscillator (12), and vary the state of polarization of the local optical signal in order to match it to a received optical signal from a remote source on a line (13). The transformed local signal is fed on a line (14) to a directional coupler (15) which compares the local and remote optical signals. A receiver (16) extracts data by interference between the two signals in the directional coupler (15), and feeds data out at a line (17). A level detector (18) detects the level of the output signal (17) and supplies a feed-back signal to a polarization controller (19), which controls the birefringent element or elements (11). The birefringent device (11) is adapted to provide a variable rotation on a Poincare sphere about an axis of rotation which itself may be varied in direction. The control means (19) varies the amount of rotation on the Poincare sphere produced by the birefringent device, and varies the direction of the axis about which the rotation takes place, so as to achieve the desired polarization transformation. A preferred form of the birefringent device (11) comprises a waveguide (20) of electro-optic material, and means (22, 23) for producing in the electro-optic material an electric field or variable strength and variable orientation whereby required polarization transformation can take place. Preferably the electro-optic material is lithium niobate.

公开(公告)号：US4904038A

公开(公告)日：1990-02-27

申请号：US615111

申请日：1984-05-30

Applicant: Chin-Lung Chang

Inventor： Chin-Lung Chang

IPC: G02F1/035

CPC classification number: G02F1/035 ,  G02F2201/066

Abstract: This invention is a frequency shifter for receiving an optical carrier signal input and producing an output including a sideband that is shifted in frequency from the carrier. The frequency shifter includes an optical waveguide formed in a substrate of an electro-optically active material such as lithium niobate. A plurality of electrodes formed on the substrate cooperate with a signal generator to apply two perpendicular electric fields to the optical waveguide. The resultant of the two fields is a rotating electric field which produces a rotating birefringence in the optical waveguide. The rotating birefringence acts as a rotating wave plate, which shifts the frequency of optical signals input to the optical waveguide. The wave plate is preferably a half wave plate, which converts all of the input optical energy into the sideband.

Abstract translation: 本发明是一种用于接收光载波信号输入并产生包括从载波频移的边带的输出的移相器。 变频器包括形成在诸如铌酸锂的电光活性材料的衬底中的光波导。 形成在基板上的多个电极与信号发生器协作，以向光波导施加两个垂直的电场。 两个场的结果是在光波导中产生旋转双折射的旋转电场。 旋转双折射用作旋转波片，其将输入到光波导的光信号的频率偏移。 波片优选为半波片，其将所有输入光能转换成边带。