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公开(公告)号：US10290993B2
公开(公告)日：2019-05-14
申请号：US15605362
申请日：2017-05-25
Applicant: Princeton Optronics, Inc.
Inventor： Tong Chen , Chuni Ghosh , Qing Wang , Alexey Kovsh , Laurence Watkins
Abstract: A VCSEL illuminator module includes a module forming a physical cavity having electrical contacts positioned on an inner surface of the module that feed through the module to electrical contacts positioned on an outer surface of the module. A VCSEL device is positioned on the inner surface module and includes electrical contacts that are electrically connected to the electrical contacts on the inner surface of the module. The VCSEL device generates an optical beam when current is applied to the electrical contacts. An optical element is positioned adjacent to an emitting surface of the VCSEL device and is configured to modify the optical beam generated by the VCSEL device.
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公开(公告)号：US09574541B2
公开(公告)日：2017-02-21
申请号：US15166296
申请日：2016-05-27
Applicant: Princeton Optronics Inc.
Inventor： Chuni L Ghosh , Qing Wang , Bing Xu , Robert van Leeuwen
CPC classification number: F02P23/04 , F02B19/12 , F02P13/00 , F02P15/08 , H01S3/025 , H01S3/0405 , H01S3/0407 , H01S3/061 , H01S3/0627 , H01S3/094053 , H01S3/0941 , H01S3/09415 , H01S3/113 , H01S3/2383 , H01S5/423
Abstract: A high efficiency optical ignition device is provided in a two-part compact and robust package to be mounted directly on an internal combustion engine chamber. The ignition device ignites a combustion fuel with a high intensity plasma generated by a high power laser beam from a solid state laser operable in Q-switched, or non-Q-switched mode for producing short or long pulses, respectively. Multiple pulses are generated, and duration and frequency of the laser beam pulses are controlled by controlling an optical pump module to pump the solid state laser. The optical pump module comprises a semiconductor laser, preferably a VCSEL device. One or more laser beams are precisely directed, each one to a desired location anywhere within the combustion chamber for more efficient and near complete burning of the combustion fuel. The robust packaging is well suited to withstand mechanical and thermal stresses of the internal combustion engine.
Abstract translation: 高效率的光学点火装置设置在两部分紧凑且坚固的包装中，以直接安装在内燃机室上。 点火装置用来自固态激光器的高功率激光束产生的高强度等离子体燃烧燃烧燃料，该固体激光器可以分别用于产生短脉冲或长脉冲的Q开关或非Q开关模式。 产生多个脉冲，通过控制光泵模块来泵浦固态激光器来控制激光束脉冲的持续时间和频率。 光泵模块包括半导体激光器，优选VCSEL器件。 一个或多个激光束被精确地引导到燃烧室中的任何地方的每个位置到达期望的位置，以便燃烧燃料的更有效和接近完全燃烧。 坚固的包装非常适合承受内燃机的机械和热应力。
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公开(公告)号：US09553423B2
公开(公告)日：2017-01-24
申请号：US15055589
申请日：2016-02-27
Applicant: Princeton Optronics Inc.
Inventor： Tong Chen , Chuni L Ghosh , Jean-Francois Seurin , Laurence S Watkins
CPC classification number: H01S5/005 , H01S5/02276 , H01S5/026 , H01S5/18308 , H01S5/18311 , H01S5/18388 , H01S5/2063 , H01S5/2072 , H01S5/423 , H04N5/2254 , H04N13/204 , H04N13/207 , H04N13/254 , H04N13/296
Abstract: A miniature structured light illuminator is provided. The miniature structured light illuminator uses a semiconductor surface emitting array including VCSEL or RC-LED array and an array of microlens elements to generate a wide range of structured light illumination patterns. The emission beam from a surface emitter array may be selectively directed, steered, focused or expanded, by applying a lateral displacement of the microlens array, such that centers of the emission beam and microlens array are misaligned. Emitted beams may be directed through small optical components to project the structured light pattern to a distant plane. The surface emitting arrays may be configured in addressable form to be activated separately for continuous or pulsed operation with very fast pulses having
Abstract translation: 提供微型结构光照明器。 微型结构光照射器使用包括VCSEL或RC-LED阵列的半导体表面发射阵列和微透镜元件阵列以产生宽范围的结构光照度图案。 可以通过施加微透镜阵列的横向位移来选择性地引导，转向，聚焦或扩展来自表面发射器阵列的发射光束，使得发射光束和微透镜阵列的中心不对准。 发射光束可以被引导通过小的光学部件，以将结构化光图案投影到远处的平面。 表面发射阵列可以被配置成可寻址的形式，以使具有<100ps上升时间的非常快的脉冲进行连续或脉冲操作。 具有投影光学元件的紧凑型结构光照射器模块以非常小的物理尺寸（〜6×6×3 mm3）提供，适合在手持设备中配置。
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公开(公告)号：US09520696B2
公开(公告)日：2016-12-13
申请号：US14634902
申请日：2015-03-02
Applicant: Princeton Optronics Inc.
Inventor： Qing Wang , Jean-Francois Seurin , Chuni L Ghosh , Laurence S Watkins
CPC classification number: H01S5/0224 , H01L2224/48091 , H01L2224/73265 , H01S5/0203 , H01S5/0217 , H01S5/0425 , H01S5/18305 , H01S5/18311 , H01S5/18347 , H01S5/423 , H01L2924/00014
Abstract: A set of VCSEL fabrication methods has been invented which enhance the performance and long time reliability of VCSEL devices and arrays of devices. Wafer bow caused by growing a large number of epitaxial layers required to fabricate VCSEL device generates strain and results in bowing/warping of the device wafer. The stress so generated is eliminated by applying a stress compensation layer on the substrate to a surface opposite to the epitaxial layer surface. New oxidation equipment designs and process parameters are described which produce more precision apertures and reduce stress in the VCSEL device. An ultrathin fabrication procedure is described which enables high power VCSELs to be made for high power operation at many different wavelengths. A low temperature electrical contacting process improves VCSEL long term reliability.
Abstract translation: 已经发明了一组VCSEL制造方法，其增强了VCSEL器件和器件阵列的性能和长时间的可靠性。 通过生长制造VCSEL器件所需的大量外延层引起的晶片弓产生应变并导致器件晶片的弯曲/翘曲。 通过在衬底上施加应力补偿层到与外延层表面相对的表面来消除所产生的应力。 描述了新的氧化设备设计和工艺参数，其产生更精确的孔并减少VCSEL装置中的应力。 描述了一种超薄制造程序，其使得能够在许多不同波长下进行高功率操作的高功率VCSEL。 低温电接触工艺可提高VCSEL的长期可靠性。
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公开(公告)号：US20140333995A1
公开(公告)日：2014-11-13
申请号：US14341239
申请日：2014-07-25
Applicant: Princeton Optronics Inc.
Inventor： Jean-Francois Seurin , Qing Wang , Laurence Watkins , Chuni Lal Ghosh
CPC classification number: H01S5/50 , H01S3/0675 , H01S3/06754 , H01S3/091 , H01S3/094007 , H01S3/094053 , H01S3/09415 , H01S3/10 , H01S3/1068 , H01S3/11 , H01S3/235 , H01S5/005 , H01S5/02208 , H01S5/02284 , H01S5/026 , H01S5/141 , H01S5/183 , H01S5/18305 , H01S5/4012 , H01S5/423
Abstract: Optical pump modules comprising VCSEL and VCSEL array devices provide high optical power for configuring fiber optic gain systems such as fiber laser and fiber amplifier particularly suited for high power operation. Pump modules may be constructed using two reflector or three reflector VCSEL devices optionally integrated with microlens arrays and other optical components, to couple high power pump beams to an optical fiber output port, particularly suited to couple light to an inner cladding of a double-clad fiber suitable for a high power gain element. Multiple-pumps may be combined to increase pump power in a modular fashion without significant distortion to signal, particularly for short pulse operation. The pump modules may be operated in CW, QCW and pulse modes to configure fiber lasers and amplifiers using single end, dual end, and regenerative optical pumping modes.
Abstract translation: 包括VCSEL和VCSEL阵列器件的光泵模块提供高光功率，用于配置光纤增益系统，如光纤激光器和光纤放大器，特别适用于大功率操作。 可以使用可选地与微透镜阵列和其他光学部件集成的两个反射器或三个反射器VCSEL器件来构造泵模块，以将高功率泵浦光束耦合到光纤输出端口，特别适合于将光耦合到双包层的内包层 光纤适合高功率增益元件。 可以组合多泵以模块化方式增加泵功率，而不会对信号造成明显的失真，特别是对于短脉冲操作。 泵模块可以以CW，QCW和脉冲模式运行，以使用单端，双端和再生光泵浦模式配置光纤激光器和放大器。
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Patent Agency Ranking
公开(公告)号：US20140218898A1
公开(公告)日：2014-08-07
申请号：US14166664
申请日：2014-01-28
Applicant: Princeton Optronics Inc.
Inventor： Jean F. Seurin , Chuni L. Ghosh , Qing Wang , Laurence S. Watkins
CPC classification number: F21V29/74 , F21L4/02 , F21V29/56 , F21V29/65 , F21V29/67 , F21V29/70 , H01L2224/48091 , H01L2224/48137 , H01S5/005 , H01S5/02248 , H01S5/02272 , H01S5/02276 , H01S5/02469 , H01S5/02476 , H01S5/141 , H01S5/18305 , H01S5/18308 , H01S5/4018 , H01S5/423 , H01L2924/00014
Abstract: VCSEL arrays with planar electrical contacts readily adaptable for surface mounting are provided. Monolithic VCSEL arrays are configured in array patterns on two and three-dimensional surfaces for configuring optical illuminator modules. Illuminator modules are easily expandable by increasing the array size or by modularly arranging more arrays with or without a transparent substrate, in different shapes by tiling array modules monolithically on a common substrate, or by tiling small modules. The surface mountable illuminator modules are easily assembled on a thermally conductive surface that may be air or liquid cooled for efficient heat dissipation. Array modules may be integrated with other electronic circuits such as current drivers, sensors, controllers, processors, etc. on a common platform, for example, a single or multiple layer printed circuit boards (PCB) to assemble illumination systems for different applications including a gesture recognition apparatus and a battery operated portable illuminator devices.
Abstract translation: 提供了具有易于适用于表面安装的平面电触头的VCSEL阵列。 单片VCSEL阵列以阵列图案配置在二维和三维表面上，用于配置光学照明器模块。 照明器模块通过增加阵列尺寸或者通过将阵列模块整体地平铺在公共基板上或通过平铺小模块而以不同的形状通过模块化地布置更多具有或不具有透明基板的阵列来容易地扩展。 可表面安装的照明器模块容易地组装在可以是空气或液体冷却以有效散热的导热表面上。 阵列模块可以与公共平台上的其它电子电路（例如电流驱动器，传感器，控制器，处理器等）集成，例如单层或多层印刷电路板（PCB），以组合用于不同应用的照明系统，包括 手势识别装置和电池操作的便携式照明装置。
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公开(公告)号：US20040228375A1
公开(公告)日：2004-11-18
申请号：US10435197
申请日：2003-05-12
Applicant: Princeton Optronics, Inc.
Inventor： Chuni Ghosh , Laurence S. Watkins , Qing Wang , Raymond William Simpson , Steven R. Leffler
IPC: H01S003/13
CPC classification number: G02B6/4215 , H01S3/136
Abstract: A wavelength locker comprising a semiconductor or air gap etalon is used to monitor and maintain the output wavelength of a coherent radiation source. Said etalon may be fabricated from a commercially available silicon wafer, with individual regions of the wafer, each functioning as a separate etalon, etched or otherwise processed to produce different thicknesses. Illumination by the coherent radiation source generated transmitted signal intensities that are detected and processed to determine the output wavelength of the coherent radiation source. A wavelength tuner is then used to maintain or vary the output wavelength based on continuous measurements of etalon signal intensity.
Abstract translation: 包括半导体或气隙标准具的波长锁定器用于监测和维持相干辐射源的输出波长。 所述标准具可以由市售的硅晶片制造，晶片的各个区域各自用作单独的标准具，蚀刻或以其它方式处理以产生不同的厚度。 通过相干辐射源的照明产生被检测和处理的传输信号强度，以确定相干辐射源的输出波长。 然后使用波长调谐器来维持或改变基于标准具信号强度的连续测量的输出波长。
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公开(公告)号：US11195721B2
公开(公告)日：2021-12-07
申请号：US16956994
申请日：2019-01-14
Applicant: Princeton Optronics, Inc.
Inventor： Guoyang Xu , Jean-Francois Seurin , Chuni Ghosh
IPC: H01L21/285 , H01L21/324 , H01L29/45 , H01S5/042 , H01S5/183 , H01L21/768
Abstract: Ohmic contacts, including materials and processes for forming n-type ohmic contacts on n-type semiconductor substrates at low temperatures, are disclosed. Materials include reactant layers, n-type dopant layers, capping layers, and in some instances, adhesion layers. The capping layers can include metal layers and diffusion barrier layers. Ohmic contacts can be formed on n-type semiconductor substrates at temperatures between 150 and 250° C., and can resist degradation during operation.
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公开(公告)号：US20210218231A1
公开(公告)日：2021-07-15
申请号：US16640119
申请日：2018-08-21
Applicant: Princeton Optronics, Inc.
Inventor： Chuni Ghosh , Jean-Francois Seurin , Laurence Watkins , Guoyang XU
IPC: H01S5/42 , H01S5/02345 , H01S5/183
Abstract: A multilayer interconnect is described which enables electrically connecting a complex distribution of VCSEL or other light emitter elements in a large high density addressable array. The arrays can include many groups of VCSEL elements interspersed among each other to form a structured array. Each group can be connected to a contact pad so that each group of light emitter elements can be activated separately.
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40.发明申请公开(公告)号：US20200067264A1
公开(公告)日：2020-02-27
申请号：US16483610
申请日：2018-01-11
Applicant: Princeton Optronics, Inc.
Inventor： Baiming Guo , Qing Wang , Laurence Watkins , Jean-Francois Seurin
Abstract: A VCSEL illuminator package includes one or more VCSELs in a substrate. The one or more VCSELs are operable to generate a VCSEL output radiation beam. An encapsulant covers the one or more VCSELs, and an optical structure is integrated in the encapsulant. The optical structure is disposed in a path of the VCSEL output radiation beam and is operable to change at least one of a propagation characteristic or intensity distribution of the VCSEL output radiation beam exiting the encapsulant.
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