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公开(公告)号：US11527868B2
公开(公告)日：2022-12-13
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: H01S5/042 , H01S5/42 , H01S5/02345 , H01S5/183 , H01S5/40
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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公开(公告)号：US20200350175A1
公开(公告)日：2020-11-05
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 , H01L29/45 , H01L21/324 , H01S5/042
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：US20200333131A1
公开(公告)日：2020-10-22
申请号：US16763210
申请日：2018-11-09
Applicant: Princeton Optronics, Inc.
Inventor： Baiming GUO , Jean-Francois SEURIN , Chuni GHOSH , Laurence WATKINS
Abstract: The present disclosure describes techniques to improve the resolution and reduce the distortion of structured light projection in miniature wide-angle VCSEL array projection modules used for 3D imaging and gesture recognition. The projector module includes a chief ray corrector optical element, which directs the VCSEL beams along the projector lens chief ray paths. The VCSEL structured illumination projector using the chief ray optical element corrector can create a high resolution, low distortion structured light pattern over an extended distance range greater that the projector lens image focal range. The corrector element is placed close to the VCSEL array. The corrector element can be implemented in various ways including, for example, a refractive lens, diffractive lens or microlens array, depending on the specific application requirements and optical configurations.
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公开(公告)号：US20160072258A1
公开(公告)日：2016-03-10
申请号：US14848791
申请日：2015-09-09
Applicant: Princeton Optronics Inc.
Inventor： Jean-Francois Seurin , Chuni L. Ghosh , Tong Chen , Laurence S. Watkins
CPC classification number: H04N13/204 , G01B11/2513 , G06K9/00134 , G06K9/0014 , G06K9/00147 , G06K9/00335 , G06K9/52 , G06K2209/05 , H01S5/02276 , H01S5/026 , H01S5/18308 , H01S5/18311 , H01S5/2063 , H01S5/2072 , H01S5/423
Abstract: A structured light source comprising VCSEL arrays is configured in many different ways to project a structured illumination pattern into a region for 3 dimensional imaging and gesture recognition applications. One aspect of the invention describes methods to construct densely and ultra-densely packed VCSEL arrays with to produce high resolution structured illumination pattern. VCSEL arrays configured in many different regular and non-regular arrays together with techniques for producing addressable structured light source are extremely suited for generating structured illumination patterns in a programmed manner to combine steady state and time-dependent detection and imaging for better accuracy. Structured illumination patterns can be generated in customized shapes by incorporating differently shaped current confining apertures in VCSEL devices. Surface mounting capability of densely and ultra-densely packed VCSEL arrays are compatible for constructing compact on-board 3-D imaging and gesture recognition systems.
Abstract translation: 包括VCSEL阵列的结构化光源以许多不同的方式配置以将结构化照明图案投影到用于三维成像和手势识别应用的区域中。 本发明的一个方面描述了构建密集和超密集VCSEL阵列以产生高分辨率结构照明图案的方法。 配置在许多不同规则和非规则阵列中的VCSEL阵列以及用于产生可寻址结构光源的技术非常适合以编程方式生成结构化照明模式，以结合稳态和时间相关检测和成像以获得更高的精度。 可以通过在VCSEL设备中引入不同形状的电流限制孔径，以定制的形状生成结构化的照明图案。 密集和超密集VCSEL阵列的表面贴装能力与构建紧凑型板载3-D成像和手势识别系统相兼容。
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公开(公告)号：US20140247841A1
公开(公告)日：2014-09-04
申请号：US13783172
申请日：2013-03-01
Applicant: Princeton Optronics Inc.
Inventor： Jean-Francois Seurin , Qing Wang , Laurence Watkins , Chuni Lal Ghosh
IPC: H01S3/067
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 a fiber output port. The pump module having a fiber output port is particularly suited to couple light to an inner cladding of a double-clad fiber, often used to configure high power fiber laser and fiber amplifier. 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. Multiple-pumps may be combined to increase pump power in a modular fashion without significant distortion to signal, particularly for short pulse operation.
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它光学部件集成的两个反射器或三个反射器VCSEL装置来构造泵模块，以将高功率泵浦光束耦合到光纤输出端口。 具有光纤输出端口的泵模块特别适用于将光耦合到双包层光纤的内包层，通常用于配置大功率光纤激光器和光纤放大器。 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。 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。
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Patent Agency Ranking
公开(公告)号：US08824519B1
公开(公告)日：2014-09-02
申请号：US13783172
申请日：2013-03-01
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 a fiber output port. The pump module having a fiber output port is particularly suited to couple light to an inner cladding of a double-clad fiber, often used to configure high power fiber laser and fiber amplifier. 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. Multiple-pumps may be combined to increase pump power in a modular fashion without significant distortion to signal, particularly for short pulse operation.
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它光学部件集成的两个反射器或三个反射器VCSEL装置来构造泵模块，以将高功率泵浦光束耦合到光纤输出端口。 具有光纤输出端口的泵模块特别适用于将光耦合到双包层光纤的内包层，通常用于配置大功率光纤激光器和光纤放大器。 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。 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。
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公开(公告)号：US11128100B2
公开(公告)日：2021-09-21
申请号：US16483610
申请日：2018-01-11
Applicant: Princeton Optronics, Inc.
Inventor： Baiming Guo , Qing Wang , Laurence Watkins , Jean-Francois Seurin
IPC: H01S5/42 , H01S5/02255 , H01S5/00 , H01S5/02234
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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公开(公告)号：US10353215B2
公开(公告)日：2019-07-16
申请号：US15919563
申请日：2018-03-13
Applicant: Princeton Optronics, Inc.
Inventor： Tong Chen , Chuni Ghosh , Laurence Watkins
IPC: G02B27/42 , H04N13/254 , G03B21/20 , G06T7/521 , F21V5/00 , F21V5/04 , G01S17/08 , G02B3/00 , G02B27/12 , G02B27/30 , G06K9/00 , G01S7/481 , G02B27/46 , G06K9/20 , H04N13/207 , F21Y115/30 , F21Y115/10
Abstract: A coded pattern projector apparatus comprises a surface-emitting array of emitters comprising a plurality of emitters where each of the plurality of emitters generates one of a plurality of optical beams in response to an electrical drive signal applied to a respective electrical input of each of the plurality of emitters. A first optical element projects each the plurality of optical beams generated by the surface-emitting array of emitters. A second optical element collimates the plurality of optical beams in a first dimension and diverges the plurality of optical beams in a second dimension such that the plurality of optical beams form at least one stripe patterns. A controller has electrical outputs, each of the electrical outputs is connected to a respective electrical input of each of the plurality of emitters. The controller generates electrical drive signals that produce a coded stripe pattern.
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公开(公告)号：US20190067909A1
公开(公告)日：2019-02-28
申请号：US16053541
申请日：2018-08-02
Applicant: Princeton Optronics, Inc.
Inventor： Chuni Ghosh , Jean-Francois Seurin , Delai Zhou , Laurence Watkins
IPC: H01S5/183 , H01S5/042 , H01S5/187 , H01S5/22 , H01S5/30 , H01S5/026 , H01S5/062 , H01S5/34 , H01S5/42
Abstract: A Vertical Cavity Surface Emitting Laser (VCSEL) includes a reflecting surface of the VCSEL. A gain region is positioned on the distributed Bragg reflector that generates optical gain. The gain region comprises a first and second multiple quantum well stack, a tunnel junction positioned between the first and second multiple quantum well stack, and a current aperture positioned on one of the first and second multiple quantum well stack. The current aperture confines a current flow in the gain region. A partially reflective surface and the reflective surface forming a VCSEL resonant cavity, wherein an output optical beam propagates from the partially reflecting surface.
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公开(公告)号：US20180203247A1
公开(公告)日：2018-07-19
申请号：US15919563
申请日：2018-03-13
Applicant: Princeton Optronics, Inc.
Inventor： Tong Chen , Chuni Ghosh , Laurence Watkins
IPC: G02B27/42 , G06T7/521 , F21V5/00 , G06K9/20 , G02B27/46 , G02B27/30 , G02B27/12 , G02B3/00 , G01S17/08 , G01S7/481 , F21V5/04 , G06K9/00 , F21Y115/10 , F21Y115/30
CPC classification number: G02B27/425 , F21V5/004 , F21V5/005 , F21V5/008 , F21V5/04 , F21V5/043 , F21Y2115/10 , F21Y2115/30 , G01B11/2513 , G01S7/4815 , G01S17/08 , G02B3/0037 , G02B27/12 , G02B27/126 , G02B27/30 , G02B27/46 , G03B21/2033 , G06K9/00335 , G06K9/2036 , G06T7/521 , H04N13/207 , H04N13/254
Abstract: A coded pattern projector apparatus comprises a surface-emitting array of emitters comprising a plurality of emitters where each of the plurality of emitters generates one of a plurality of optical beams in response to an electrical drive signal applied to a respective electrical input of each of the plurality of emitters. A first optical element projects each the plurality of optical beams generated by the surface-emitting array of emitters. A second optical element collimates the plurality of optical beams in a first dimension and diverges the plurality of optical beams in a second dimension such that the plurality of optical beams form at least one stripe patterns. A controller has electrical outputs, each of the electrical outputs is connected to a respective electrical input of each of the plurality of emitters. The controller generates electrical drive signals that produce a coded stripe pattern.
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