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公开(公告)号：US5136598A
公开(公告)日：1992-08-04
申请号：US531416
申请日：1990-05-31
申请人： Joseph F. Weller , William K. Burns , Lew Goldberg
发明人： Joseph F. Weller , William K. Burns , Lew Goldberg
摘要： An apparatus for generating a relatively high-power, modulated optical beams disclosed. The apparatus comprises a first element for emitting a relatively low-power laser beam at a preselected wavelength, means for focusing the laser beam into a focused beam, a damage-resistant integrated optic modulator responsive to the focused beam for developing a modulated beam, optical means for shaping the modulated beam into a shaped modulated beam, and semiconductor means having a large active area responsive to the shaped, modulated beam for producing a relatively high-power, output modulated beam. In a first embodiment, the semiconductor means is a semiconductor amplifier which amplifies the modulated beam to produce the high-power, modulated output beam.
摘要翻译： 公开了一种用于产生相对高功率的调制光束的装置。 该装置包括用于以预选波长发射相对较低功率的激光束的第一元件，用于将激光束聚焦到聚焦光束的装置，响应于聚焦光束的抗损伤集成光学调制器，用于显影调制光束，光学 用于将调制的波束成形为成形的调制波束的装置，以及响应于成形的调制波束的大的有源区域的半导体装置，用于产生相对高功率的输出调制波束。 在第一实施例中，半导体装置是放大调制光束以产生高功率调制输出光束的半导体放大器。
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公开(公告)号：US4686485A
公开(公告)日：1987-08-11
申请号：US795796
申请日：1985-11-07
申请人： Lew Goldberg , Henry F. Taylor , Joseph F. Weller
发明人： Lew Goldberg , Henry F. Taylor , Joseph F. Weller
CPC分类号： H01S5/0656 , H01S5/4031 , H01S5/4081 , H01S5/0064
摘要： An apparatus for amplifying a laser beam through injection locking of a laser array by a single master laser is presented. The apparatus is comprised of a master laser which produces a beam that is shaped or focused onto a laser array facet which is further comprised of an array junction plane wherein the laser array is biased above threshold.
摘要翻译： 提出了通过单个主激光器通过激光器阵列的注入锁定来放大激光束的装置。 该设备由主激光器组成，该主激光器产生成形或聚焦到激光器阵列小面上的光束，该激光器阵列小面还包括阵列结面，其中激光阵列偏置在阈值以上。
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3.发明授权Acoustic-wave convolvers utilizing diffused waveguides and beam compression techniques 失效利用扩散波导和光束压缩技术的声波卷积器
公开(公告)号：US4181904A
公开(公告)日：1980-01-01
申请号：US932248
申请日：1978-08-09
CPC分类号： G06G7/195
摘要： Two input transducers launch oppositely-propagating acoustic surface waves on a piezoelectric substrate. The waves are compressed to a smaller beamwidth and then laterally confined in a diffused channel waveguide where non-linear interaction occurs at increased energy densities due to the beam compression. In one embodiment the beam compression is accomplished in multistrip couplers. In another embodiment, diffused horn-shaped channels are provided for compressing the beamwidth. Both piezoelectric and semiconductor convolvers are disclosed.
摘要翻译： 两个输入传感器在压电基板上发射相反传播的声表面波。 波被压缩到较小的波束宽度，然后横向限制在扩散通道波导中，由于波束压缩，在增加的能量密度下发生非线性相互作用。 在一个实施例中，束压缩是在多段耦合器中完成的。 在另一个实施例中，提供扩散的喇叭形通道用于压缩波束宽度。 公开了压电和半导体卷取器。
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4.发明授权
公开(公告)号：US4330768A
公开(公告)日：1982-05-18
申请号：US192962
申请日：1980-10-02
CPC分类号： H03H9/44 , H03H9/02614 , H03H9/02787 , H03H9/02881 , H03H9/6403
摘要： A surface acoustical wave (SAW) waveguide device which compensates for dispersion by utilizing diffused substrates. Various embodiments have in-diffused or out-diffused core regions in which the ray is channeled that are topped by a thin metallic film overlay. Partially surrounding each core region are cladding portions which are also selectively in-diffused or out-diffused and may be covered by the metal overlay. By varying the amounts of in-diffusion or out-diffusion for the particular application, the effects of dispersion are minimized.
摘要翻译： 表面声波（SAW）波导器件，通过利用扩散衬底补偿色散。 各种实施例具有扩散或扩散的芯区域，其中通过薄金属膜覆盖层覆盖射线。 部分地围绕每个芯区域是包层部分，其也是选择性地扩散或扩散的并且可以被金属覆盖层覆盖。 通过改变特定应用的扩散或扩散的量，可以使色散的影响最小化。
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公开(公告)号：US4907238A
公开(公告)日：1990-03-06
申请号：US370965
申请日：1989-06-26
申请人： Myung K. Chun , Lew Goldberg , Joseph F. Weller
发明人： Myung K. Chun , Lew Goldberg , Joseph F. Weller
CPC分类号： H01S5/4006 , G02F1/37
摘要： An apparatus for generating coherent radiation at a desired frequency is disclosed. In a preferred embodiment the apparatus comprises: an injection-locked semiconductor diode structure having a large active area for emitting a diffraction-limited beam at a preselected frequency; optics for focusing the diffraction-limited beam into a focused beam; a nonlinear crystal responsive to the focused beam for producing a beam of laser power which includes an output beam at a desired harmonic of the preselected frequency; and a device for passing the output beam in a given direction. In a modification of the preferred embodiment, the output of the injection-locked semiconductor diode structure is mixed with an emission from a laser source in the nonlinear crystal to produce a desired sum or difference frequency.
摘要翻译： 公开了一种以期望的频率产生相干辐射的装置。 在优选实施例中，该装置包括：具有大的有源区域的注入锁定半导体二极管结构，用于以预选频率发射衍射受限束; 用于将衍射受限束聚焦到聚焦光束中的光学器件; 响应于聚焦光束的非线性晶体，用于产生激光功率束，其包括在预选频率的期望谐波处的输出光束; 以及用于沿给定方向通过输出光束的装置。 在优选实施例的修改中，注入锁定半导体二极管结构的输出与来自非线性晶体中的激光源的发射混合以产生期望的和频或差频。
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6.发明授权Method and apparatus for acousto-optically shifting the frequency of a light signal propagating in a single-mode fiber 失效用于对在单模光纤中传播的光信号的频率进行声光移位的方法和装置
公开(公告)号：US4666255A
公开(公告)日：1987-05-19
申请号：US873488
申请日：1986-06-12
CPC分类号： G02F1/0134
摘要： An acousto-optic frequency shifter in which two cylindrical acoustic resonators driven 90.degree. out of phase from one another are placed around a birefringent, single-mode optical fiber approximately three-quarters of a polarization beat length apart. The resonators interact with optical radiation propagating in one of two polarization modes of the fiber, the first to cross-couple two sidebands into the other polarization mode, and the second to suppress one of the sidebands in the cross-coupled mode and enhance the other, thereby creating a single sideband signal completely within the fiber.
摘要翻译： 一个声光移频器，其中相互驱动90°异相的两个圆柱形声谐振器被放置在双折射单模光纤周围大约四分之三的偏振拍子长度。 谐振器与在光纤的两个偏振模式中的一个中传播的光辐射相互作用，首先将两个边带交叉耦合到另一个偏振模式，第二个将交叉耦合模式中的一个边带抑制，并增强另一个 ，从而在光纤内完全产生单个边带信号。
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公开(公告)号：US4503541A
公开(公告)日：1985-03-05
申请号：US440685
申请日：1982-11-10
申请人： Joseph F. Weller , Lew Goldberg
发明人： Joseph F. Weller , Lew Goldberg
CPC分类号： H01S5/065 , H01S5/0601 , H01S5/14 , H01S5/026
摘要： Laser linewidth is controlled by reflecting a certain portion of the laser light back into the laser cavity. This control is accomplished by aligning the active layer on an electroabsorptive cell with the active layer of a semiconductor laser on a single substrate with a first waveguide therebetween. Light from the laser is guided by the first waveguide to the electroabsorptive cell whose light absorption is electronically controlled. The laser light propagates through the active region in the electroabsorptive cell and then is guided by a second waveguide to a reflection facet. The laser light is reflected by this reflection facet back through the waveguide-cell-waveguide-laser light path. The foregoing device can be formed using either a monolithic or a hybrid design.
摘要翻译： 通过将激光的某一部分反射回激光腔来控制激光线宽。 该控制是通过将电吸收性电池上的有源层与半导体激光器的有源层在单个衬底上进行对准来实现的，其中第一波导在其间。 来自激光器的光由第一波导引导到电吸收光电池，其电吸收被电子控制。 激光传播通过电吸收单元中的有源区，然后被第二波导引导到反射面。 激光由该反射面反射通过波导管 - 波导 - 激光光路。 上述装置可以使用单片或混合设计来形成。
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8.发明授权Optical injection locking of solid-state oscillators by frequency-multiplexed injection-locked, laser diodes 失效通过频率复用注入锁定激光二极管的固态振荡器的光注入锁定
公开(公告)号：US4503403A
公开(公告)日：1985-03-05
申请号：US536588
申请日：1983-09-28
CPC分类号： H01S3/10092 , H03L7/24
摘要： The optical injection-locking of an FET oscillator is accomplished by injecting the beat signal between two coherently mixed slave lasers, which are locked to different harmonics of a modulated master laser, into the FET oscillator to be locked. 120 GHz injection-locking beat signals are possible using this technique.
摘要翻译： FET振荡器的光注入锁定通过将被锁定到调制主激光器的不同谐波的两个相干混合从激光器之间的拍频信号注入到要被锁定的FET振荡器中来实现。 使用这种技术可以实现120 GHz的注射锁定拍频信号。
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公开(公告)号：US5066148A
公开(公告)日：1991-11-19
申请号：US560702
申请日：1990-07-31
申请人： Paul T. Bryant , Joseph F. Weller , Lew Goldberg
发明人： Paul T. Bryant , Joseph F. Weller , Lew Goldberg
CPC分类号： H04B10/40 , G02B6/4246
摘要： A bi-directional optical transmission system for radio frequency electricalnergy includes first and second transmitter/receiver stations which transmit and receive light signals along an optical path therebetween. Each station includes a laser transmitter for transmitting a carrier light beam which is intensity modulated by a synchronization of an input radio frequency electrical signal. A photodetector at each station detects the intensity variations of the carrier light beam from the other station and outputs a respective radio frequency electrical signal which is synchronized with the radio frequency electrical input signal of the other station. A beam splitter is provided between the optical path at both the laser transmitter and photodetector to split the light beams incident thereon into a pass portion and angularly reflected portion. An isolator device also is provided between the laser transmitter and beam splitter to isolate the laser transmitter from back reflections. Preferably, the isolator is a Faraday isolator, and additionally or alternatively the laser transmitters transmit at widely separate wavelengths. The optical path can either be free space or a main optical fiber, and the synchronization of the input radio frequency electrical energy can either be phase synchronization or time synchronization.
摘要翻译： 用于射频电能的双向光传输系统包括沿其间的光路发送和接收光信号的第一和第二发射机/接收机站。 每个站包括用于发射由输入射频电信号的同步强度调制的载波光束的激光发射器。 每个站的光电检测器检测来自另一个站的载波光束的强度变化，并输出与另一个站的射频电输入信号同步的各个射频电信号。 在激光发射器和光电检测器之间的光路之间设置分束器，以将入射在其上的光束分成通过部分和角度反射部分。 在激光发射器和分束器之间还设有隔离器装置，以将激光发射器与背反射隔离。 优选地，隔离器是法拉第隔离器，并且附加地或替代地，激光发射器以广泛分开的波长发射。 光路可以是自由空间或主光纤，并且输入射频电能的同步可以是相位同步或时间同步。
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公开(公告)号：US4905252A
公开(公告)日：1990-02-27
申请号：US245176
申请日：1988-09-16
申请人： Lew Goldberg , Joseph F. Weller
发明人： Lew Goldberg , Joseph F. Weller
IPC分类号： H01S5/10
CPC分类号： H01S5/1071 , H01S3/0805 , H01S3/083 , H01S5/14 , H01S5/2036
摘要： Diffraction limited, single narrow lobe radiation from a large area laser is achieved in a system using an external ring laser cavity to return radiation to the laser via a spatial filter and a Faraday rotator. An antireflectance coating of sufficiently small reflectivity added to the large area laser converts it into a laser amplifier which provides optical gain in a ring laser cavity.
摘要翻译： 在使用外部环形激光腔的系统中，通过空间滤波器和法拉第旋转器将辐射返回激光器，实现了衍射限制，来自大面积激光器的单窄波长辐射。 添加到大面积激光器中的足够小的反射率的抗反射涂层将其转换成在环形激光腔中提供光学增益的激光放大器。
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