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71. 发明授权

US5267255A Array and method of operating a modulated solid state laser array with reduced thermal crosstalk 失效
标题翻译：操作具有降低的热串扰的调制固态激光器阵列的阵列和方法
公开(公告)号：US5267255A
公开(公告)日：1993-11-30
申请号：US841399
申请日：1992-02-25
申请人： Thomas L. Paoli
发明人： Thomas L. Paoli
IPC分类号： H01S5/00 , H01S5/026 , H01S5/0625 , H01S5/40 , H01S3/19
CPC分类号： H01S5/4031 , H01S5/0625 , H01S5/0265
摘要： Modulation-induced thermal crosstalk between the independently addressable lasers of a monolithic multilaser array is reduced or eliminated by forming each laser with two optically coupled active regions, an amplifier region and a modulator region. Modulation of the laser output is achieved by varying the internal optical loss of the modulator region, known as Q-switching. In one form, control of this loss is achieved by varying the reverse bias voltage applied to the modulation region. In another form, control of this loss is achieved by selectively connecting and disconnecting regions of p-type and n-type material in the modulator region together. In a third form, control of this loss is achieved by selectively connecting and disconnecting the modulator region to ground potential. In a fourth form, control of this loss is achieved by increasing the amplifier current to allow lasing and simultaneously offset any thermal effects produced by the increased optical power emitted. Q-switched operation of laser results in a cooling of the laser during operation. Increasing the bias applied to the amplifier region results in heating of the laser during operation. Parameters for Q-switching and biasing the amplifier region are selected such that cooling of the laser attributed to Q-switched operation is approximately equally offset by heating attributed to increasing the bias applied to the amplifier region.

72. 发明授权

US5212381A Method of controlling slow scan direction of spot position in an optical output device employing an electro-optical control apparatus 失效
标题翻译：在采用电光控制装置的光输出装置中控制光点位置的慢扫描方向的方法
公开(公告)号：US5212381A
公开(公告)日：1993-05-18
申请号：US747176
申请日：1991-08-19
申请人： James J. Appel , Thomas L. Paoli
发明人： James J. Appel , Thomas L. Paoli
IPC分类号： G02B26/10 , G02B5/04 , G02B26/12 , G02B27/00 , G02F1/29 , H04N1/047 , H04N1/113 , H04N1/12
CPC分类号： G02B27/0031 , G02B5/04 , H04N1/0473 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04763
摘要： A method of slow, or process, scan direction spot registration or position control in an optical output device, such as a raster output scanner (ROS), may be facilitated by interposing in the image path an electro-optic element whose angular dispersion varies for a given wavelength as a function of the electrical bias applied to it. By orienting the electro-optic element such that dispersion control is perpendicular to the fast or line scan direction of the ROS, varying the electrical bias applied to it varies the dispersion in the slow scan direction. The electro-optic element may be, for example, a prism of AlGaAs. Bias applied to the electro-optic element may be in response to the output of a means for detecting and quantifying such positional errors and/or in response to predetermined correction information output from a processor controlled memory unit or the like. Spot position for single or multiple beam optical output device may be achieved.
摘要翻译：在诸如光栅输出扫描器（ROS）的光学输出装置中，缓慢或处理扫描方向点对位或位置控制的方法可以通过将影像路径中的角度色散变化的电光元件插入到给定波长作为施加到其上的电偏压的函数。通过使电光元件定向使得色散控制垂直于ROS的快速或线扫描方向，改变施加到其上的电偏压改变慢扫描方向上的色散。电光元件可以是例如AlGaAs的棱镜。应用于电光元件的偏压可以响应于用于检测和量化这种位置误差的装置的输出和/或响应于从处理器控制的存储器单元等输出的预定校正信息。可以实现单光束或多光束光输出装置的光点位置。

73. 发明授权

US5136604A Apparatus and method for detecting the power level in single and multi-stripe integrated lasers 失效
标题翻译：用于检测单条和多条集成激光器功率电平的装置和方法
公开(公告)号：US5136604A
公开(公告)日：1992-08-04
申请号：US500814
申请日：1990-03-28
申请人： Thomas L. Paoli , Neville Connell , Doanld R. Scifres , Robert L. Thornton
发明人： Thomas L. Paoli , Neville Connell , Doanld R. Scifres , Robert L. Thornton
IPC分类号： H01S5/00 , H01L27/15 , H01S5/026 , H01S5/042 , H01S5/06 , H01S5/0683 , H01S5/40
CPC分类号： H01S5/0264 , H01L27/15 , H01S5/0683 , H01S5/4031
摘要： The present invention is an apparatus and method for providing detection of a laser output on a semiconductor wafer. A laser cavity and a detection cavity are formed on a semiconductor wafer in parallel such that light emitted laterally from the laser cavity is detected by the detection cavity. The amount of light detected can then be transformed into data, which in turn can be used to control the output of the laser.

74. 发明授权

US5114877A Method of fabricating quantum wire semiconductor laser via photo induced evaporation enhancement during in situ epitaxial growth 失效
标题翻译：通过在实际生长过程中照相诱导的蒸发增强来制造量子线半导体激光的方法
公开(公告)号：US5114877A
公开(公告)日：1992-05-19
申请号：US638587
申请日：1991-01-08
申请人： Thomas L. Paoli , John E. Epler
发明人： Thomas L. Paoli , John E. Epler
IPC分类号： H01L21/203 , H01L33/00 , H01S5/00 , H01S5/34 , H01S5/40
CPC分类号： H01S5/341 , B82Y20/00 , H01S5/4043 , H01S5/405 , Y10S438/962
摘要： In situ removal of selected or patterned portions of quantum well layers is accomplished by photo induced evaporation enhancement to form quantum wire and multiple quantum wires in a semiconductor laser structure.

75. 发明授权

US4802182A Monolithic two dimensional waveguide coupled cavity laser/modulator 失效
标题翻译：单片二维波导耦合腔激光器/调制器
公开(公告)号：US4802182A
公开(公告)日：1989-01-31
申请号：US117706
申请日：1987-11-05
申请人： Robert L. Thornton , Thomas L. Paoli
发明人： Robert L. Thornton , Thomas L. Paoli
IPC分类号： H01S5/026 , H01S5/06 , H01S5/10 , H01S5/20 , H01S5/34 , H01S5/50 , H01S3/19 , H01S3/10
CPC分类号： B82Y20/00 , H01S5/0265 , H01S5/0601 , H01S5/10 , H01S5/34 , H01S5/1021 , H01S5/2063 , H01S5/50
摘要： A monolithic two dimensional waveguide coupled cavity laser/modulator structure for high speed modulation comprising a plurality of semiconductor layers on a semiconductor substrate. One of the semiconductor layers functions as an active region. Impurity induced disordering techniques are utilized to form first and second active mediums in the structure having co-axial two dimensional optical cavities. One of these active mediums functions as a laser and the other as a modulator. A passive two dimensional waveguide is integrally formed between the two active mediums having a highest refractive index at its core with diminishing refractive index omnidirectionally from its core with waveguide core having a energy bandgap level higher than both of the active mediums exhibiting low optical absorption at the gain wavelength of either of the active mediums. The modulator can be operated between an electro-absorption mode and a gain modulation mode while the laser is current pumped above threshold with the modulated optical switching of the output of said laser being less than 100 picoseconds as a function of applied voltage to said modulator varied in a range of 0 to 2 volts as illustrated by the curves in FIG. 14.
摘要翻译：一种用于高速调制的单片二维波导耦合腔激光器/调制器结构，包括半导体衬底上的多个半导体层。半导体层之一起主动区域的作用。利用杂质诱导的无序化技术在具有同轴二维光学腔的结构中形成第一和第二活性介质。这些活性介质中的一种用作激光，另一种用作调制器。无源二维波导一体地形成在其核心处具有最高折射率的两个有源介质之间，其核心的折射率从其芯部全向减小，波导芯的能带隙水平高于在任何一种活性介质的增益波长。调制器可以在电吸收模式和增益调制模式之间操作，同时激光器被电流泵送到阈值以上，所述激光器的输出的调制光切换小于100皮秒，作为施加到所述调制器的电压的函数。在0至2伏的范围内，如图8中的曲线所示。 14。

76. 发明授权

US4730331A Superluminescent LED source 失效
标题翻译：超发光LED源
公开(公告)号：US4730331A
公开(公告)日：1988-03-08
申请号：US874982
申请日：1986-06-16
申请人： Robert D. Burnham , Thomas L. Paoli , Robert L. Thornton , Robert A. Sprague
发明人： Robert D. Burnham , Thomas L. Paoli , Robert L. Thornton , Robert A. Sprague
IPC分类号： B41J2/455 , G06K15/12 , H01L33/00 , H01S3/19
CPC分类号： H01L33/0045 , B41J2/45 , G06K15/1252
摘要： A light source comprises a semiconductor laser having a plurality of deposited semiconductor layers including an active region consisting of a plurality of layers forming at least two quantum wells in the active region. The layers immediately adjacent to the active region provide confinement for light generated in one or more optical cavities established in the active region and propagating between end facets of the source. Means, such as in the form of an antireflection (AR) coating, is provided to convert the semiconductor laser into a superluminescent LED source. Further, means is provided to broaden the wavelength spectral emission from the source by rendering the energy levels present in the quantum wells to be at different levels between or among the quantum wells. The resulting output beam has high output intensity and a uniform far field pattern without intensity variation along the beam width particularly useful as a superluminescent LED source for electrooptic line TIR modulators and line printers.
摘要翻译：光源包括具有多个沉积的半导体层的半导体激光器，该半导体层包括由在有源区域中形成至少两个量子阱的多个层组成的有源区域。紧邻有源区域的层提供了在建立在有源区域中并在源的端面之间传播的一个或多个光学空穴中产生的光的约束。提供诸如以抗反射（AR）涂层形式的装置，以将半导体激光器转换成超发光LED源。此外，提供了通过使存在于量子阱中的能级在量子阱之间或之中处于不同级别来扩大来自源的波长光谱发射的装置。所得到的输出光束具有高输出强度和均匀的远场图案，沿着光束宽度没有强度变化，特别适用于电光线TIR调制器和线打印机的超发光LED光源。

77. 发明授权

US06567443B2 Structure and method for self-aligned, index-guided, buried heterostructure AlGalnN laser diodes 有权
标题翻译： AlCalnN激光二极管的自对准，折射率引导，掩埋异质结构的结构和方法
公开(公告)号：US06567443B2
公开(公告)日：2003-05-20
申请号：US09408415
申请日：1999-09-29
申请人： David P. Bour , Michael A. Kneissl , Linda T. Romano , Thomas L. Paoli , Christian G. Van de Walle
发明人： David P. Bour , Michael A. Kneissl , Linda T. Romano , Thomas L. Paoli , Christian G. Van de Walle
IPC分类号： H01S500
CPC分类号： B82Y20/00 , H01S5/2218 , H01S5/2222 , H01S5/2275 , H01S5/3211 , H01S5/34333
摘要： A self aligned, index-guided, buried heterostructure AlGalnN laser diode provides improved mode stability and low threshold current when compared to conventional ridge waveguide structures. A short period superlattice is used to allow adequate cladding layer thickness for confinement without cracking. The intensity of the light lost due to leakage is reduced by about 2 orders of magnitude with an accompanying improvement in the far-field radiation pattern when compared to conventional structures. The comparatively large p-contact area allowed by the self-aligned architecture contributes to a lower diode voltage and less heat during continuous wave operation of the laser diode.
摘要翻译：与传统的脊波导结构相比，自对准，折射率引导，埋入异质结AlGalnN激光二极管提供了改进的模式稳定性和低阈值电流。短周期超晶格用于允许足够的包层厚度进行约束而不会开裂。与常规结构相比，由于泄漏而损失的光的强度降低了约2个数量级，伴随着远场辐射图的改进。自对准结构允许的较大的p接触面积有助于在激光二极管的连续波动操作期间较低的二极管电压和较少的热量。

78. 发明授权

US06548908B2 Structure and method for planar lateral oxidation in passive devices 有权
标题翻译：无源器件平面侧向氧化的结构与方法
公开(公告)号：US06548908B2
公开(公告)日：2003-04-15
申请号：US09473108
申请日：1999-12-27
申请人： Christopher L. Chua , Philip D. Floyd , Thomas L. Paoli , Decai Sun
发明人： Christopher L. Chua , Philip D. Floyd , Thomas L. Paoli , Decai Sun
IPC分类号： H01L2348
CPC分类号： G02B6/136 , G02B6/132 , G02B2006/12102 , G02B2006/12104 , G02B2006/12119 , G02B2006/12121 , G02B2006/12142 , G02B2006/1215 , G02B2006/12176 , H01S5/18313 , H01S5/18338 , H01S5/18388 , H01S5/2215
摘要： A passive semiconductor device structure is made using planar lateral oxidation to define a buried oxidized semiconductor structure such as a passive waveguide, microlens or DBR mirror stack.
摘要翻译：无源半导体器件结构使用平面侧向氧化来形成掩埋氧化半导体结构，例如无源波导，微透镜或DBR反射镜叠层。

79. 发明授权

US6121983A Method and apparatus for a solid state laser scanning architecture 有权
标题翻译：固体激光扫描架构的方法和装置
公开(公告)号：US6121983A
公开(公告)日：2000-09-19
申请号：US196396
申请日：1998-11-19
申请人： David K. Fork , G. A. Neville Connell , Eric Peeters , Robert L. Thornton , Patrick Y. Maeda , Ross D. Bringans , Thomas L. Paoli , Joel A. Kubby , Decai Sun , Philip D. Floyd
发明人： David K. Fork , G. A. Neville Connell , Eric Peeters , Robert L. Thornton , Patrick Y. Maeda , Ross D. Bringans , Thomas L. Paoli , Joel A. Kubby , Decai Sun , Philip D. Floyd
IPC分类号： B41J2/465 , G02B26/08 , G02B26/10 , H04N1/113 , H04N1/192 , H04N1/195 , G03G15/04
CPC分类号： H04N1/1135 , B41J2/465 , G02B26/0833 , G02B26/10 , H04N1/192 , H01S5/18388 , H01S5/423 , H04N1/195
摘要： A solid state laser array is multiplexed using an array of micromirrors to permit high resolution printing in a wide format. Each laser in the laser array and each micromirror in the mirror array is individually controlled. The laser array may be an array of VCSELs produced on a GaAs substrate.
摘要翻译：使用微镜阵列来复用固态激光器阵列，以允许以宽格式进行高分辨率打印。激光阵列中的每个激光器和反射镜阵列中的每个微镜单独控制。激光器阵列可以是在GaAs衬底上产生的VCSEL阵列。

80. 发明授权

US5995267A Time division multiplexing multiple beam raster output scanning system 失效
标题翻译：时分复用多光束光栅输出扫描系统
公开(公告)号：US5995267A
公开(公告)日：1999-11-30
申请号：US016691
申请日：1998-01-30
申请人： Thomas L. Paoli
发明人： Thomas L. Paoli
IPC分类号： G02B26/12 , G02B27/28 , H04N1/113 , H04N1/191 , H04N1/50 , G02B26/08
CPC分类号： H04N1/1911 , G02B26/123 , G02B27/283 , H04N1/506 , H04N1/1135
摘要： A time division multiplexed laser emits two beams of the same wavelength but orthogonal polarization or two beams of different wavelengths from a single laser source for use in a multiple beam raster output scanning system. The multiple beam raster output scanning is obtained from a single raster scanning system (ROS) with a rotating mirror, beneficially a polygon mirror, and a single set of scan optics for use in single or multiple station printers. A plurality of the coaxially overlapping laser beams from the same laser source are deflected using a common mirror surface area and laser beams containing different channels of data signals are subsequently separated by a plurality of dynamic and static beam separators based on polarization or wavelength. The channels of the separated laser beams are directed onto associated photoreceptors.
摘要翻译：时分复用激光器从单个激光源发射具有相同波长但正交偏振或不同波长的两个波束的两束，用于多光束光栅输出扫描系统。从具有旋转镜的单个光栅扫描系统（ROS）获得多光束光栅输出扫描，有利地是多面镜，以及用于单台或多台打印机的单组扫描光学器件。来自相同激光源的多个同轴重叠的激光束使用公共镜面区域偏转，并且包含不同数据信号通道的激光束随后由基于偏振或波长的多个动态和静态光束分离器分离。分离的激光束的通道被引导到相关联的光感受器上。

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