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公开(公告)号：US20230408406A1
公开(公告)日：2023-12-21
申请号：US18338020
申请日：2023-06-20
Applicant: California Institute of Technology
Inventor： Mathieu Fradet , Ryan M. Briggs , Kazi M. Islam
CPC classification number: G01N21/39 , H01S5/0268 , H01S5/3401 , H01S5/1203 , H01S5/34346 , H01S5/34313 , G01N2021/396 , G01N2021/393
Abstract: Disclosed herein is a spectroscopy device incorporating a mid-infrared laser. In one particular embodiment a spectroscopy device is provided including: a substrate; a single mode laser positioned on the substrate; a single mode detector positioned opposite to the single mode laser on the substrate. A gap is formed between the single mode laser and the single mode detector and a substance is positioned in the gap. The single mode laser is configured to output a tunable narrow wavelength of radiation towards the detector and when the single mode laser outputs a wavelength of radiation overlapping one of the substance's rotational-vibrational energy levels, the substance at least partially absorbs the radiation. The single mode detector is configured to measure the amount of narrow wavelength radiation that is not absorbed by the substance between the single mode detector and the single mode laser.
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公开(公告)号：US20200285131A1
公开(公告)日：2020-09-10
申请号：US16813462
申请日：2020-03-09
Applicant: California Institute of Technology
Inventor： Alireza Marandi , Luis Ledezma , Yinglun Xu , Ryan M. Briggs
IPC: G02F1/39
Abstract: An optical parametric oscillator (OPO) including a thin film waveguide including a material having a second order nonlinear susceptibility generating an electromagnetic field in response to pump electromagnetic field inputted into the thin film waveguide. The electromagnetic field has a first wavelength or first set of wavelengths longer than a second wavelength or second set of wavelengths of the pump electromagnetic field. The thin film waveguide has a thickness on the order of the first wavelength or the first set of wavelengths in the thin film waveguide so as to guide the electromagnetic field along the thin film waveguide.
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公开(公告)号：US09991677B2
公开(公告)日：2018-06-05
申请号：US14711695
申请日：2015-05-13
Applicant: California Institute of Technology
Inventor： Ryan M. Briggs , Clifford F. Frez , Siamak Forouhar
CPC classification number: H01S5/3402 , H01S5/12 , H01S5/1237 , H01S5/125 , H01S5/22 , H01S5/2216 , H01S5/2275
Abstract: Quantum cascade (QC) lasers and methods of fabricating such QC lasers are provided. The QC lasers incorporate a DFB grating without requiring the use of relying on epitaxial regrowth processes. The DFB gratings are formed as sidewall gratings along the lateral length of the QC active region, or the DFB gratings are formed atop the lateral length of the QC active region, and wherein the top DFB grating is planarized with a polymeric material.
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4.发明申请INDEX-COUPLED DISTRIBUTED-FEEDBACK SEMICONDUCTOR QUANTUM CASCADE LASERS FABRICATED WITHOUT EPITAXIAL REGROWTH 有权指数耦合分布式反馈半导体量子级数激光器，无需外延继电器公开(公告)号：US20150333482A1
公开(公告)日：2015-11-19
申请号：US14711695
申请日：2015-05-13
Applicant: California Institute of Technology
Inventor： Ryan M. Briggs , Clifford F. Frez , Siamak Forouhar
CPC classification number: H01S5/3402 , H01S5/12 , H01S5/1237 , H01S5/125 , H01S5/22 , H01S5/2216 , H01S5/2275
Abstract: Quantum cascade (QC) lasers and methods of fabricating such QC lasers are provided. The QC lasers incorporate a DFB grating without requiring the use of relying on epitaxial regrowth processes. The DFB gratings are formed as sidewall gratings along the lateral length of the QC active region, or the DFB gratings are formed atop the lateral length of the QC active region, and wherein the top DFB grating is planarized with a polymeric material.
Abstract translation: 提供量子级联（QC）激光器和制造这种QC激光器的方法。 QC激光器结合DFB光栅，而不需要依赖于外延再生长过程。 DFB光栅沿着QC有源区域的横向长度形成为侧壁光栅，或者DFB光栅形成在QC有源区域的横向长度之上，并且其中顶部DFB光栅用聚合物材料平坦化。
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Patent Agency Ranking
公开(公告)号：US11226538B2
公开(公告)日：2022-01-18
申请号：US16813462
申请日：2020-03-09
Applicant: California Institute of Technology
Inventor： Alireza Marandi , Luis Ledezma , Yinglun Xu , Ryan M. Briggs
Abstract: An optical parametric oscillator (OPO) including a thin film waveguide including a material having a second order nonlinear susceptibility generating an electromagnetic wave in response to pump electromagnetic wave inputted into the thin film waveguide. The electromagnetic wave has a first wavelength or first set of wavelengths longer than a second wavelength or second set of wavelengths of the pump electromagnetic wave. The thin film waveguide has a thickness on the order of the first wavelength or the first set of wavelengths in the thin film waveguide so as to guide the output electromagnetic wave along the thin film waveguide.
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公开(公告)号：US09438011B2
公开(公告)日：2016-09-06
申请号：US14824933
申请日：2015-08-12
Applicant: California Institute of Technology
Inventor： Clifford F. Frez , Carl E. Borgentun , Ryan M. Briggs , Mahmood Bagheri , Siamak Forouhar
CPC classification number: H01S5/3402 , H01S5/0425 , H01S5/1003 , H01S5/1231 , H01S5/1237 , H01S5/125 , H01S5/187 , H01S5/2086 , H01S5/22 , H01S5/2205 , H01S5/3214 , H01S5/3401
Abstract: Single-mode, distributed feedback interband cascade lasers (ICLs) using distributed-feedback gratings (e.g., lateral Bragg gratings) and methods of fabricating such ICLs are provided. The ICLs incorporate distributed-feedback gratings that are formed above the laser active region and adjacent the ridge waveguide (RWG) of the ICL. The ICLs may incorporate a double-ridge system comprising an optical confinement structure (e.g., a RWG) disposed above the laser active region that comprises the first ridge of the double ridge system, a DFB grating (e.g., lateral Bragg grating) disposed above the laser active region and adjacent the optical confinement structure, and an electric confinement structure that passes at least partially through the laser active region and that defines the boundary of the second ridge comprises and the termination of the DFB grating.
Abstract translation: 提供了使用分布式反馈光栅（例如横向布拉格光栅）的单模，分布式反馈带间级联激光器（ICL）和制造这种ICL的方法。 ICL包含形成在激光有源区域上方并与ICL的脊波导（RWG）相邻的分布式反馈光栅。 ICL可以包括双脊系统，该双脊系统包括设置在激光有源区域之上的光限制结构（例如，RWG），其包括双脊系统的第一脊，DFB光栅（例如，横向布拉格光栅） 激光有源区并且邻近光限制结构，并且至少部分地穿过激光有源区并且限定第二脊的边界的电限制结构包括DFB光栅的终止和终止。
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公开(公告)号：US12228500B2
公开(公告)日：2025-02-18
申请号：US17758796
申请日：2021-02-23
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Ryan M. Briggs , Linda Y. Del Castillo , Mina Rais-Zadeh
IPC: G01N21/31 , E21B47/01 , G01N21/359
Abstract: A composition sensor for measuring composition of fluid mixtures is presented. The composition sensor includes a plurality of high-brightness emission sources having respective spectrally narrow wavelength emission bands in the infrared region. The wavelength emission bands overlap absorption wavelength bands of the composition. The wavelength emission bands are wavelength multiplexed and time multiplexed prior to emission through a fluid mixture. A single optical detector senses the emitted light. The composition sensor includes arms that can rotate to measure composition at different angular position of a pipe in a lateral section of an oil well. Rotation of the arms is provided by rotation of an element of a mobile vessel to which the arm is rigidly coupled. The rotation of the arms is provided by a rotation of a nose of the mobile vessel that rotates independently from a main body of the mobile vessel.
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公开(公告)号：US11456573B2
公开(公告)日：2022-09-27
申请号：US17061020
申请日：2020-10-01
Applicant: California Institute of Technology
Inventor： Ryan M. Briggs , Clifford F. Frez , Mathieu Fradet
Abstract: Single-mode distributed-feedback (DFB) lasers including single mode DFB waveguides with tapered grating structures are provided herein. Tapered grating structures provide for single mode DFB waveguides with predictable single mode operation. Uniform grating structures may provide for single mode operation, however DFB waveguides implementing uniform grating structures may operate at one of two single modes. Advantageously, DFB waveguides with tapered gratings operate with a spectrally narrow single mode at the same predictable single mode for all DFB waveguides with substantially identical specifications. Such predictability may lead to increased yield during manufacture of DFB waveguides with tapered gratings.
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公开(公告)号：US20160049770A1
公开(公告)日：2016-02-18
申请号：US14824933
申请日：2015-08-12
Applicant: California Institute of Technology
Inventor： Clifford F. Frez , Carl E. Borgentun , Ryan M. Briggs , Mahmood Bagheri , Siamak Forouhar
CPC classification number: H01S5/3402 , H01S5/0425 , H01S5/1003 , H01S5/1231 , H01S5/1237 , H01S5/125 , H01S5/187 , H01S5/2086 , H01S5/22 , H01S5/2205 , H01S5/3214 , H01S5/3401
Abstract: Single-mode, distributed feedback interband cascade lasers (ICLs) using distributed-feedback gratings (e.g., lateral Bragg gratings) and methods of fabricating such ICLs are provided. The ICLs incorporate distributed-feedback gratings that are formed above the laser active region and adjacent the ridge waveguide (RWG) of the ICL. The ICLs may incorporate a double-ridge system comprising an optical confinement structure (e.g., a RWG) disposed above the laser active region that comprises the first ridge of the double ridge system, a DFB grating (e.g., lateral Bragg grating) disposed above the laser active region and adjacent the optical confinement structure, and an electric confinement structure that passes at least partially through the laser active region and that defines the boundary of the second ridge comprises and the termination of the DFB grating.
Abstract translation: 提供了使用分布式反馈光栅（例如横向布拉格光栅）的单模，分布式反馈带间级联激光器（ICL）和制造这种ICL的方法。 ICL包含形成在激光有源区域上方并与ICL的脊波导（RWG）相邻的分布式反馈光栅。 ICL可以包括双脊系统，该双脊系统包括设置在激光有源区域之上的光限制结构（例如，RWG），其包括双脊系统的第一脊，DFB光栅（例如，横向布拉格光栅） 激光有源区并且邻近光限制结构，并且至少部分地穿过激光有源区并且限定第二脊的边界的电限制结构包括DFB光栅的终止和终止。
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