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1. 发明授权

US5159420A Dual medium heterojunction acoustic charge transport multiple quantum well spatial light modulator 失效
标题翻译：双介质异质结声电荷传输多量子阱空间光调制器
公开(公告)号：US5159420A
公开(公告)日：1992-10-27
申请号：US777883
申请日：1991-10-15
申请人： Thomas W. Grudkowski , Glen W. Drake , Frederick J. Leonberger , Robert N. Sacks , William J. Tanski
发明人： Thomas W. Grudkowski , Glen W. Drake , Frederick J. Leonberger , Robert N. Sacks , William J. Tanski
IPC分类号： G02F1/017 , G02F1/11
CPC分类号： B82Y20/00 , G02F1/017 , G02F1/11
摘要： A one-dimensional or two-dimensional transmission mode spatial light modulator (SLM) includes two different mediums, one medium being a semiconductor comprising one or more heterojunction acoustic charge transport (HACT) channels 28 with surrounding layers 26, 30 vertically adjacent to a multiple quantum well (MQW) region 22, and the other being a transparent piezoelectric insulating substrate 10 thick enough to allow a surface acoustic wave (SAW) 13 to propagate therein. The SAW 13 is launched in the substrate 10 by a transducer 12 and generates electric fields which propagate the charge along the HACT channel 28 in the semiconductor medium 18. Electrodes 32, 34, 36 carry charge to and from the HACT channel 28, and light 40 is applied to a surface 44 perpendicular to the MQW region 22. Charge packets 19 in the HACT channel 28 invoke electric fields within the MQW region 22 which determines the optical absorption and/or index-of-refraction thereof, thereby determining the intensity and/or phase of each output light beam 46. Light modulation is achieved by modulating the amount of charge injected and/or the characteristics of the SAW 11. Various different materials for the substrate 10 may be used to provide desired efects.
摘要翻译：一维或二维透射模式空间光调制器（SLM）包括两种不同介质，一种介质是包括一个或多个异质结声电荷传输（HACT）通道28的半导体，其中周围层26,30垂直相邻于多个量子阱（MQW）区域22，另一个是透明压电绝缘基板10，该透明压电绝缘基板10足够厚以允许表面声波（SAW）13在其中传播。 SAW 13通过换能器12在衬底10中发射，并产生沿着半导体介质18中的HACT通道28传播电荷的电场。电极32,34,36向HCC通道28和/ 40被施加到垂直于MQW区域22的表面44.HACT通道28中的充电包19调用MQW区域22内的电场，该电场确定光学吸收和/或其折射率，由此确定强度和 /或每个输出光束的相位46.通过调制注入的电荷量和/或SAW 11的特性来实现光调制。可以使用用于衬底10的各种不同的材料来提供期望的效果。

2. 发明授权

US4518219A Optical guided wave devices employing semiconductor-insulator structures 失效
标题翻译：采用半导体 - 绝缘体结构的光导波器件
公开(公告)号：US4518219A
公开(公告)日：1985-05-21
申请号：US463568
申请日：1983-02-03
申请人： Frederick J. Leonberger , Ivars Melngailis , Carl O. Bozler , Robert W. McClelland
发明人： Frederick J. Leonberger , Ivars Melngailis , Carl O. Bozler , Robert W. McClelland
IPC分类号： G02B6/13 , G02B5/174
CPC分类号： G02B6/131
摘要： A three-dimensional optical waveguide is disclosed. This waveguide comprises a single crystal semiconductor layer grown upon an insulator which has an index of refraction lower than the semiconductor. The semiconductor layer has a thickness which provides confinement of light propagating in the semiconductor layer in the vertical direction. An effective larger index of refraction over a cross-sectional region of the semiconductor layer provides confinement of light in the lateral direction. This lateral confinement is achieved by side walls in the semiconductor layer which extend toward, but fall short of, the insulator layer.
摘要翻译：公开了一种三维光波导。该波导包括在绝缘体上生长的单晶半导体层，其具有低于半导体的折射率。半导体层具有在垂直方向上提供在半导体层中传播的光的限制的厚度。在半导体层的横截面区域上的有效的较大的折射率提供了在横向方向上的光的限制。该侧向约束由半导体层中的侧壁延伸，但是绝缘层延伸但不短。

3. 发明授权

US4505587A Picosecond optical sampling 失效
标题翻译：皮秒光学取样
公开(公告)号：US4505587A
公开(公告)日：1985-03-19
申请号：US425130
申请日：1981-08-14
申请人： Hermann A. Haus , Steven T. Kirsch , Frederick J. Leonberger
发明人： Hermann A. Haus , Steven T. Kirsch , Frederick J. Leonberger
IPC分类号： G02F1/21 , G02F1/225 , G01B9/02
CPC分类号： G02F1/225 , G02F1/2255 , G02F2001/212 , G02F2203/26
摘要： A high speed sampling technique is proposed using a cascade of optical waveguide interferometers driven by CW sinusoidal traveling or standing microwaves. Each interferometer multiplies the optical signal by a function closely approximated by cos.sup.4 .omega.t, where .omega. is the frequency of its microwave drive. A cascade of four interferometers with 2.6 V microwave drives at 10, 20, 40, and 80 GHz and a total length of 2 cm can sample an optical signal with 2 ps resolution and 50 ps between samples.
摘要翻译： PCT No.PCT / US81 / 01086 Sec。 371日期1982年8月4日 102（e）日期1982年8月4日PCT PCT日期为1981年8月14日。提出了使用由CW正弦波行进或站立微波驱动的级联的光波导干涉仪的高速采样技术。每个干涉仪将光信号乘以由cos4ωωt近似的函数，其中ω是其微波驱动的频率。具有10,20,40和80 GHz的2.6 V微波驱动器和2 cm的总长度的四个干涉仪级联可以采样2 ps分辨率和50 ps样本之间的光信号。

4. 发明授权

US4376285A High speed optoelectronic switch 失效
标题翻译：高速光电开关
公开(公告)号：US4376285A
公开(公告)日：1983-03-08
申请号：US162073
申请日：1980-06-23
申请人： Frederick J. Leonberger , Frederick J. O'Donnell
发明人： Frederick J. Leonberger , Frederick J. O'Donnell
IPC分类号： H01L31/16 , H01L27/12 , H01L27/14 , H01L29/161
CPC分类号： H01L31/162
摘要： An optoelectronic switch has been formed from a semi-insulating substrate of indium phosphide doped with a deep level impurity and disposed intermediate a microstrip transmission line. One conductor of the transmission line has a small gap in its metallization. Upon illumination of the gap by laser pulses which are absorbed near the semiconductor surface, a photogenerated electron-hole plasma forms thereby providing a conducting path across the gap turning the switch "on."A process of fabricating the switch is described, an important feature of which is a heat-treatment process which improves the response time of the switch to .about.50 picoseconds. Another important part of the invention is the formation of an optically semi-transparent metallic film at the gap surface. This provides greater efficiency in the coupling of light into the device at the gap while at the same time maintaining a short electronically non-conductive gap and thus a relatively low ON-state impedance for the switch.
摘要翻译：由掺杂深层杂质的磷化铟半绝缘基板形成光电开关，并设置在微带传输线之间。传输线的一个导体在其金属化中具有小的间隙。通过在半导体表面附近吸收的激光脉冲照射间隙，从而形成光生电子 - 空穴等离子体，从而提供穿过间隙的导电路径，使开关“接通”。描述了制造开关的过程，其重要特征是热处理过程，其将开关的响应时间提高到差速比50皮秒。本发明的另一重要部分是在间隙表面形成光学半透明金属膜。这提供了在间隙处将光耦合到器件中更高的效率，同时保持短的电子不导电间隙，并且因此保持开关的相对低的导通状态阻抗。

5. 发明授权

US5077816A Fiber embedded grating frequency standard optical communication devices 失效
标题翻译：光纤嵌入式频率标准光通信设备
公开(公告)号：US5077816A
公开(公告)日：1991-12-31
申请号：US457044
申请日：1989-12-16
申请人： Walter L. Glomb , Frederick J. Leonberger
发明人： Walter L. Glomb , Frederick J. Leonberger
IPC分类号： G02B6/293 , G02F1/01 , G02F2/00 , H01S5/0687 , H04B10/04 , H04B10/155 , H04B10/20 , G02B6/34 , H01S3/10 , H04J1/00
CPC分类号： H04B10/572 , H01S5/0687 , H04B10/503 , H04B10/506
摘要： A narrowband laser source includes an optical fiber section including a core centered on a longitudinal axis and a cladding surounding the core, and having a grating region embedded in the core. The grating region includes a multitude of Bragg grating elements extending with a substantially equal longitudinal spacing substantially normal to the longitudinal axis for the grating region to significantly reduce the amount of light passing therethrough when the frequency of such light is in a predetermined narrow range around and including a predetermined center frequency, to an extent proportionate to the deviation of such frequency from the center frequency. A portion of the light emitted by a laser at a frequency dependent on the amount of electric energy applied to the laser is supplied into the core of the fiber section for propagation toward the grating region. The amount of light passing through the grating region is detected, and the amount of energy applied to the laser is varied in dependence on the extent of deviation of the frequency of such light from the center frequency in such a sense as to reduce the extent of such deviation.

6. 发明授权

US4798437A Method and apparatus for processing analog optical wave signals 失效
标题翻译：用于处理模拟光波信号的方法和装置
公开(公告)号：US4798437A
公开(公告)日：1989-01-17
申请号：US906593
申请日：1986-09-09
申请人： Robert H. Rediker , Frederick J. Leonberger , Darryl P. Greenwood
发明人： Robert H. Rediker , Frederick J. Leonberger , Darryl P. Greenwood
IPC分类号： G02B6/34 , G02F1/225 , G02F1/313 , H04N5/225 , G02F1/01
CPC分类号： G02B6/12011 , G02B6/12019 , G02B6/12033 , G02F1/225 , G02F1/313 , H04N5/2254 , Y10S359/90
摘要： Discrete segments of an analog optical wave signal are collected in individual waveguides of a waveguide array. In the waveguide array, the optical signal is processed to provide an analysis of the signal or to control the signal. The signal can be analyzed by Mach-Zehnder interferometers which can provide an indication of the distance of a subject from the array. By controlling the dielectric constants of the waveguides electronically, the array can serve as an aberration free focusing lens or as an aberration compensation lens. Rapid electronic control of the focal length of the lens makes the lens particularly applicable to automatic focusing systems, systems which view only objects within a selected range of distances from the array, and the compiling of in focus segments to form a wide depth of field image.
摘要翻译：模拟光波信号的离散段被收集在波导阵列的各个波导中。在波导阵列中，处理光信号以提供对信号的分析或控制信号。该信号可以由马赫 - 曾德尔（Mach-Zehnder）干涉仪进行分析，该干涉仪可以提供受试者距离阵列距离的指示。通过电子控制波导的介电常数，该阵列可以用作无像差自由聚焦透镜或像差补偿透镜。对镜头焦距进行快速电子控制使得镜头特别适用于自动对焦系统，仅查看距离阵列的选定距离范围内的物体的系统，以及聚焦片段的编译，以形成广阔的景深图像。

7. 发明授权

US4420873A Optical guided wave devices employing semiconductor-insulator structures 失效
标题翻译：采用半导体 - 绝缘体结构的光导波器件
公开(公告)号：US4420873A
公开(公告)日：1983-12-20
申请号：US115420
申请日：1980-01-25
申请人： Frederick J. Leonberger , Ivars Melngailis , Carl O. Bozler , Robert W. McClelland
发明人： Frederick J. Leonberger , Ivars Melngailis , Carl O. Bozler , Robert W. McClelland
IPC分类号： G02B6/122 , G02B6/13 , G02B5/172
CPC分类号： G02B6/122 , G02B6/131 , Y10S117/918
摘要： A method for fabricating three-dimensional optical waveguides is disclosed. In this method, a single crystal semiconductor layer is grown upon an insulator which has an index of refraction lower than the semiconductor. The semiconductor layer is deposited to a thickness which provides confinement of light propagating in the semiconductor layer in the vertical direction. An effective larger index of refraction over a cross-sectional region of the semiconductor layer is then formed to provide confinement of light in the lateral direction. In the preferred method, the growth of single crystal semiconductor upon the insulator is achieved by a vapor-phase lateral epitaxial overgrowth technique.Devices fabricated according to the method are also disclosed.
摘要翻译：公开了制造三维光波导的方法。在该方法中，单晶半导体层生长在折射率低于半导体的绝缘体上。半导体层被沉积成在垂直方向上提供在半导体层中传播的光的限制的厚度。然后在半导体层的横截面区域上形成有效的较大的折射率，以在侧向方向上提供光的约束。在优选的方法中，单晶半导体在绝缘体上的生长通过气相横向外延生长技术实现。还公开了根据该方法制造的器件。

8. 发明授权

US4984861A Low-loss proton exchanged waveguides for active integrated optic devices and method of making same 失效
标题翻译：用于有源集成光学器件的低损耗质子交换波导及其制造方法
公开(公告)号：US4984861A
公开(公告)日：1991-01-15
申请号：US329123
申请日：1989-03-27
申请人： Paul G. Suchoski, Jr. , Talal K. Findakly , Frederick J. Leonberger
发明人： Paul G. Suchoski, Jr. , Talal K. Findakly , Frederick J. Leonberger
IPC分类号： G02B6/126 , G02B6/134
CPC分类号： G02B6/1345 , G02B6/126 , G02F1/035
摘要： A single polarization active IO device includes a crystalline material substrate having an IO circuit array comprising an optical waveguide array disposed on a major surface of the substrate by a two step proton exchange (TSPE) process, and including an electrode array disposed on the major surface in juxtaposed relation with the waveguide array to provide one or more active IO regions thereon.
摘要翻译：单偏振有源IO器件包括具有IO电路阵列的结晶材料衬底，其包括通过两步质子交换（TSPE）工艺设置在衬底的主表面上的光波导阵列，并且包括设置在主表面上的电极阵列与波导阵列并置关系以在其上提供一个或多个有源IO区域。

9. 发明授权

US4696533A Spatial light modulator 失效
标题翻译：空间光调制器
公开(公告)号：US4696533A
公开(公告)日：1987-09-29
申请号：US224140
申请日：1981-01-12
申请人： Robert H. Kingston , Frederick J. Leonberger
发明人： Robert H. Kingston , Frederick J. Leonberger
IPC分类号： G02F1/01 , G02F1/015 , G02F1/025 , G02B6/10
CPC分类号： G02F1/025 , G02F1/0126 , G02F2001/0157
摘要： Spatial light modulators which use a substrate having a buried channel charge-coupled device (CCD) formed therein, wherein the amount of charge in the charge storage wells associated with the electrodes of the CCD is controlled by an electrically or optically addressed data signal. The level of charge in such charge storage wells controls the electric field beneath the electrodes so that the intensity of electromagnetic energy (e.g., light) directed through the CCD is spatially modulated by the charge levels in the charge storage wells in accordance with the Franz-Keldysh electroabsorption effect.
摘要翻译：使用其中形成有掩埋沟道电荷耦合器件（CCD）的衬底的空间光调制器，其中与CCD的电极相关联的电荷存储阱中的电荷量由电或光学寻址的数据信号控制。这种电荷存储阱中的电荷水平控制电极下面的电场，使得通过CCD引导的电磁能量（例如，光）的强度根据Franz- 凯尔迪斯电吸收效应。

10. 发明授权

US4525871A High speed optoelectronic mixer 失效
标题翻译：高速光电混频器
公开(公告)号：US4525871A
公开(公告)日：1985-06-25
申请号：US345228
申请日：1982-02-03
申请人： Arthur G. Foyt , Frederick J. Leonberger , Richard C. Williamson
发明人： Arthur G. Foyt , Frederick J. Leonberger , Richard C. Williamson
IPC分类号： H03D7/00 , H04B1/26
CPC分类号： H03D7/00 , H03D2200/0047 , H03D2200/009
摘要： An electronic mixer is decribed which utilizes an optoelectronic switch formed from a semi-insulating substrate of indium phosphide doped with a deep level impurity and disposed intermediate a microstrip transmission line. One conductor of the transmission line has a small gap in its metallization. Upon illumination of the gap by laser pulses from a laser source which are absorbed near the semiconductor surface, a photo-generated electron-hole plasma forms thereby providing a conducting path across the gap. An RF signal to be mixed with a LO signal is coupled to one side of the switch. The LO signal controls the Laser source. The output of the switch is therefore the product of the RF and LO signal.
摘要翻译：描述了一种电子混合器，其使用由掺杂有深级杂质的磷化铟的半绝缘衬底形成的光电开关并且设置在微带传输线之间。传输线的一个导体在其金属化中具有小的间隙。通过在半导体表面附近被吸收的来自激光源的激光脉冲照射间隙，从而形成光电子 - 空穴等离子体，从而提供穿过间隙的导电路径。与LO信号混合的RF信号耦合到开关的一侧。 LO信号控制激光源。因此，开关的输出是RF和LO信号的乘积。

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