专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

US20240154379A1 INTEGRATED LASER PACKAGE WITH LIGHT INTENSITY MONITORING 审中-公开
公开(公告)号：US20240154379A1
公开(公告)日：2024-05-09
申请号：US18272629
申请日：2021-01-21
申请人： GOOGLE LLC
发明人： Daniel Adema , Timothy Paul Bodiya
IPC分类号： H01S3/02 , G02B27/01 , G02B27/42 , H01S3/1055
CPC分类号： H01S3/025 , G02B27/0172 , G02B27/4205 , H01S3/1055
摘要： Systems and methods related to optical engines and laser projectors usable in wearable heads-up displays are described. An optical engine may include laser diodes that are configured to output laser light beams and that are disposed in a fully or partially hermetically sealed, encapsulated package having an exit window. A holographic or surface-relief diffraction grating may be integrated with or disposed on a primary output surface of the exit window of an enclosure of the optical engine. The diffraction grating may be configured to redirect a portion of the laser light toward one or more photodetectors disposed at or across from one or more surfaces of the exit window that are not parallel with the primary output surface. The primary output surface of the exit window may be slanted to be non-orthogonal to the primary direction of propagation of the emitted laser light.

2. 发明授权

US11239624B2 Laser device and line narrow optics 有权
公开(公告)号：US11239624B2
公开(公告)日：2022-02-01
申请号：US16827562
申请日：2020-03-23
申请人： Gigaphoton Inc.
发明人： Hirotaka Miyamoto
IPC分类号： G02B27/09 , H01S3/00 , H01S3/1055 , G02B7/18 , G02B17/00 , G02B27/28 , H01S3/225 , H01S3/02 , H01S3/08 , H01S3/038
摘要： A laser device may include a chamber accommodating a pair of discharge electrodes, a grating provided outside the chamber, first beam-expanding optics provided between the chamber and the grating and configured to expand a beam width of light outputted from the chamber at least in a first direction perpendicular to a direction of discharge between the pair of discharge electrodes, and second beam-expanding optics having a plurality of prisms provided between the chamber and the grating, the second beam-expanding optics being configured to expand a beam width of light outputted from the chamber at least in a second direction parallel to the direction of discharge between the pair of discharge electrodes.

3. 发明申请

US20200227878A1 LASER DEVICE AND LINE NARROW OPTICS 审中-公开
公开(公告)号：US20200227878A1
公开(公告)日：2020-07-16
申请号：US16827562
申请日：2020-03-23
申请人： Gigaphoton Inc.
发明人： Hirotaka MIYAMOTO
IPC分类号： H01S3/00 , H01S3/1055 , G02B7/18 , G02B17/00 , G02B27/09 , G02B27/28 , H01S3/225
摘要： A laser device may include a chamber accommodating a pair of discharge electrodes, a grating provided outside the chamber, first beam-expanding optics provided between the chamber and the grating and configured to expand a beam width of light outputted from the chamber at least in a first direction perpendicular to a direction of discharge between the pair of discharge electrodes, and second beam-expanding optics having a plurality of prisms provided between the chamber and the grating, the second beam-expanding optics being configured to expand a beam width of light outputted from the chamber at least in a second direction parallel to the direction of discharge between the pair of discharge electrodes.

4. 发明授权

US10522966B2 Laser apparatus 有权
公开(公告)号：US10522966B2
公开(公告)日：2019-12-31
申请号：US16123328
申请日：2018-09-06
申请人： Gigaphoton Inc.
发明人： Hirotaka Miyamoto
IPC分类号： H01S3/1055 , G03F7/20 , H01S3/038 , H01S5/00
摘要： A laser apparatus includes: a laser chamber in which a pair of discharge electrodes is provided; a first beam expander configured to expand a beam width of a beam outputted from the laser chamber at least in a first direction substantially parallel to a direction of electric discharge between the discharge electrodes; and a line narrow optical system including: a second beam expander configured to expand a beam width of the beam outputted from the laser chamber at least in a second direction substantially perpendicular to the first direction, the second beam expander including at least one optical element; and a grating configured to perform wavelength dispersion of the beam expanded by the first and second beam expanders, the wavelength dispersion being performed in a plane substantially parallel to the second direction, wherein at least one of the grating and the at least one optical element is arranged so as to compensate for wavelength dispersion caused by the first beam expander.

5. 发明授权

US10361538B2 Movable diffraction grating, method of manufacturing the same, and external resonator type laser module 有权
$Movable diffraction grating, method of manufacturing the same, and external resonator type laser module$
公开(公告)号：US10361538B2
公开(公告)日：2019-07-23
申请号：US15687637
申请日：2017-08-28
申请人： HAMAMATSU PHOTONICS K.K.
发明人： Atsushi Sugiyama , Tadataka Edamura
IPC分类号： H01S3/10 , H01S5/14 , H01S5/06 , H01S5/12 , H01S5/34 , H01S3/1055
摘要： A movable diffraction grating includes: a support portion; a movable portion swingably connected to the support portion; a coil buried in the movable portion; a magnetic field generator configured to apply a magnetic field to the coil; an insulation layer provided on a surface of the movable portion; a resin layer provided on the insulation layer and provided with a diffraction grating pattern; and a reflection layer formed of a metal and provided on the resin layer to follow the diffraction grating pattern.

6. 发明授权

US10298317B2 Systems and methods for dynamic spectral shaping in optical communications 有权
公开(公告)号：US10298317B2
公开(公告)日：2019-05-21
申请号：US15851369
申请日：2017-12-21
申请人： Infinera Corp.
发明人： Pierre Mertz , Omer Faruk Yilmaz
IPC分类号： H04J14/02 , H04B10/073 , H04B10/296 , H01S3/1055 , G02B6/42 , G02B6/02 , H01S5/14 , G02B6/293 , G02B6/43 , H04Q11/00 , H04B10/079
摘要： A method is described in which a loss of spectrum in an optical signal having an optical signal spectrum is detected. The optical signal is transmitted from a first node to a second node. In response to detecting the loss of spectrum in the optical signal, at least one idler carrier without data imposed is supplied into the optical signal spectrum transmitted from the first node to the second node, the optical signal spectrum encompassing a frequency band including a plurality of optical channels, the idler carrier being amplified stimulated emission light having a frequency corresponding to a first optical channel of the plurality of optical channels.

7. 发明申请

US20190086195A1 OPTICAL MEASUREMENT DEVICE, OPTICAL MEASUREMENT METHOD, AND ROTARY MACHINE 审中-公开
公开(公告)号：US20190086195A1
公开(公告)日：2019-03-21
申请号：US16082446
申请日：2017-03-10
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.
发明人： Tomoyuki ONISHI , Akio KONDOU
IPC分类号： G01B11/16 , G01L1/24 , G01L5/00 , H01S5/14 , H01S5/0687 , H01S3/1055 , G01L3/10
摘要： The present invention includes: a laser that can change the emission wavelength of light; a light-emitting fiber that emits light output from the laser onto a rotor; a concave surface that is provided in a recessed manner in the rotor and reflects the light emitted from the light-emitting fiber; a light-receiving fiber that receives the light reflected by the concave surface; a photodetector that detects the intensity of the light received by the light-receiving fiber; and a control device that controls the laser and performs optical measurement. The intensity is detected by the photodetector while changing the emission wavelength of the laser; the emission wavelength at which the intensity is largest is selected; and optical measurement is performed by detecting the intensity of light reflected by the concave surface by using light having an emission angle determined by the selected emission wavelength.

8. 发明授权

US09997890B2 Discrete wavelength tunable laser 有权
公开(公告)号：US09997890B2
公开(公告)日：2018-06-12
申请号：US15488400
申请日：2017-04-14
申请人： ROCKLEY PHOTONICS LIMITED
发明人： Aaron John Zilkie
IPC分类号： H01S5/0625 , H01S5/125 , G02F1/00 , H01S3/1055 , H01S5/14 , H01S3/106 , H01S5/028
CPC分类号： H01S5/06256 , G02F1/00 , H01S3/1055 , H01S3/106 , H01S5/0287 , H01S5/125 , H01S5/141 , H01S5/142
摘要： A multisection digital supermode-distributed Bragg reflector (MSDS-DBR) comprising: a plurality P of digital supermode Bragg reflector (DS-DBR) grating sections arranged along a waveguide; wherein each DS-DBR grating section is configured to pass or reflect light over a given spectral region, the given spectral region being different from the spectral regions of the other DS-DBR grating sections; wherein each DS-DBR grating section comprises a plurality M of grating sub-regions, each sub-region corresponding to a spectral sub-band within the spectral region of the DS-DBR grating section, and wherein each grating sub-region includes a positive electrical contact and a negative electrical contact; said grating sub-region being configured to pass or reflect light of its spectral sub-band when an electrical bias is provided between its positive and negative electrical contacts.

9. 发明授权

US09991678B1 Dispersion compensated diffractive optical element beam combiner 有权
$Dispersion compensated diffractive optical element beam combiner$
公开(公告)号：US09991678B1
公开(公告)日：2018-06-05
申请号：US14734959
申请日：2015-06-09
申请人： NORTHROP GRUMMAN SYSTEMS CORPORATION
发明人： Peter A. Thielen , William H. Long, Jr. , Eric C. Cheung , Gregory D. Goodno
IPC分类号： H01S5/00 , H01S3/08 , H01S5/40 , H01S5/14 , H01S3/082 , H01S3/067 , H01S3/10 , H01S3/23 , H01S3/081 , H01S3/1055 , H01S3/13
CPC分类号： H01S3/2383 , G02B27/0944 , H01S3/005 , H01S3/06754 , H01S3/1307 , H01S5/3402
摘要： An optical system, such as a fiber laser amplifier, including a plurality of optical sources, such as fiber amplifiers, each generating a beam. In one embodiment, the system includes first and second diffraction gratings that correct the angle of the propagation direction of the beams to remove angular dispersion caused by a diffractive optical element (DOE). In another embodiment, the system includes a single diffraction grating, where the optical beams pass through the grating twice to also remove the angular dispersion caused by the DOE.

10. 发明授权

US09887510B2 Mid-IR microchip laser: ZnS:Cr2+ laser with saturable absorber material 有权
公开(公告)号：US09887510B2
公开(公告)日：2018-02-06
申请号：US14321553
申请日：2014-07-01
申请人： The UAB Research Foundation
发明人： Sergey B. Mirov , Vladimir V. Fedorov
IPC分类号： H01S3/08 , C30B31/00 , C30B31/02 , H01S3/06 , H01S3/0941 , H01S3/1055 , H01S3/16 , H01S3/108 , H01S3/115 , H01S3/117 , H01S3/00 , H01S3/094 , H01S3/113
CPC分类号： H01S3/0805 , C30B29/48 , C30B31/00 , C30B31/02 , H01S3/0014 , H01S3/0604 , H01S3/0627 , H01S3/08009 , H01S3/08086 , H01S3/094038 , H01S3/094042 , H01S3/094046 , H01S3/09415 , H01S3/1055 , H01S3/108 , H01S3/113 , H01S3/115 , H01S3/117 , H01S3/162 , H01S3/1623 , H01S3/1628 , H01S2301/04 , Y10S438/917
摘要： A method of fabrication of laser gain material and utilization of such media includes the steps of introducing a transitional metal, preferably Cr2+ thin film of controllable thickness on the ZnS crystal facets after crystal growth by means of pulse laser deposition or plasma sputtering, thermal annealing of the crystals for effective thermal diffusion of the dopant into the crystal volume with a temperature and exposition time providing the highest concentration of the dopant in the volume without degrading laser performance due to scattering and concentration quenching, and formation of a microchip laser either by means of direct deposition of mirrors on flat and parallel polished facets of a thin Cr:ZnS wafer or by relying on the internal reflectance of such facets.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式