公开(公告)号：US12066679B2

公开(公告)日：2024-08-20

申请号：US17130598

申请日：2020-12-22

Applicant: Massachusetts Institute of Technology

Inventor： Steven J. Augst ,  Peter O'Brien ,  Jonathan Wilson

IPC: G02B1/11 ,  G02B5/00 ,  G02B5/28 ,  G02B7/00 ,  H01S3/04 ,  H01S5/024

CPC classification number: G02B7/008 ,  G02B1/11 ,  G02B5/003 ,  G02B5/284 ,  H01S3/04 ,  H01S5/024

Abstract: High-power light absorbers (HPLAs) can exhibit low back-scattered light, mitigate stray light, and withstand high optical power. The absorbers can be used with or without baffling as beam dumps for high-power lasers. An HPLA may include a substrate made of high thermally conductive material with an anti-reflection (AR) coating formed on the substrate. A thin layer of highly absorbing material may be located between the AR coating and substrate. The substrate can be cooled with a fluid, such as water or air.

公开(公告)号：US20240069261A1

公开(公告)日：2024-02-29

申请号：US17821755

申请日：2022-08-23

Applicant: Photonic Inc.

Inventor： Youn Seok Lee ,  Gary Wolfowicz ,  Mohsen Keshavarz Akhlaghi

IPC: G02B5/28 ,  G01J1/44 ,  G02B6/26

CPC classification number: G02B5/284 ,  G01J1/44 ,  G02B6/26 ,  H01S5/14

Abstract: Excitation used to produce luminescence is cancelled using interference with an excitation cancelling beam by controlling or setting a phase difference. An excitation beam and an excitation cancelling beam are produced from a common source and the excitation beam directed quantum light emitter to produce luminescence. A residual excitation beam and the excitation cancelling beam are coupled to interfere destructively so that the luminescence is available for detection or otherwise without substantial portions of the excitation beam.

公开(公告)号：US20180267217A1

公开(公告)日：2018-09-20

申请号：US15688032

申请日：2017-08-28

Applicant: Kabushiki Kaisha Toshiba

Inventor： Haruhiko YOSHIDA ,  Kazuya OHIRA ,  Hirotaka UEMURA ,  Kaori WARABI

IPC: G02B5/20 ,  G01J1/04

CPC classification number: G02B5/20 ,  G01J1/0209 ,  G01J1/0252 ,  G01J1/0488 ,  G01J3/0259 ,  G01J3/0286 ,  G01J2003/1213 ,  G02B5/284 ,  G02F2203/055

Abstract: A wavelength filter of an embodiment includes: a first layer having a plurality of first regions containing a first material and a plurality of second regions containing a second material having a refractive index higher than that of the first material, each of the second regions provided between each of the first regions; a second layer provided on the first layer and containing the first material; and a third layer having a plurality of third regions containing the first material, each of the third regions provided on the second layer above each of the first regions, and a plurality of fourth regions containing the second material, each of the fourth regions provided between each of the third regions.

公开(公告)号：US20180252911A1

公开(公告)日：2018-09-06

申请号：US15969317

申请日：2018-05-02

Applicant: Seiko Epson Corporation

Inventor： Akira SANO ,  Yasushi MATSUNO

IPC: G02B26/00 ,  G01J3/26 ,  G02B5/28

CPC classification number: G02B26/001 ,  G01J3/26 ,  G02B5/28 ,  G02B5/284 ,  G02B5/285

Abstract: A tunable interference filter includes: first and second opposed substrates; a first reflection film provided on a first reflection film fixing surface of the first substrate; a second reflection film provided on a second reflection film fixing surface of the second substrate and separated from the first reflection film by a gap; and a first electrode provided on a first electrode surface of the first substrate facing the second substrate, wherein the first electrode surface is spaced apart from the second substrate by a different distance than the first reflection film fixing surface, and a layered part in which the first reflection film and the first electrode are stacked is provided on the first electrode surface, the layered part being spaced apart from the second substrate by a larger distance than the first reflection film fixing surface.

公开(公告)号：US10061116B2

公开(公告)日：2018-08-28

申请号：US14724414

申请日：2015-05-28

Applicant: Seiko Epson Corporation

Inventor： Akira Sano ,  Yasushi Matsuno

IPC: G02B27/00 ,  G02B1/10 ,  G02B26/00 ,  G01J3/26 ,  G02B5/28

CPC classification number: G02B26/001 ,  G01J3/26 ,  G02B5/28 ,  G02B5/284 ,  G02B5/285

Abstract: A tunable interference filter includes: first and second opposed substrates; a first reflection film provided on a first reflection film fixing surface of the first substrate; a second reflection film provided on a second reflection film fixing surface of the second substrate and separated from the first reflection film by a gap; and a first electrode provided on a first electrode surface of the first substrate facing the second substrate, wherein the first electrode surface is spaced apart from the second substrate by a different distance than the first reflection film fixing surface, and a layered part in which the first reflection film and the first electrode are stacked is provided on the first electrode surface, the layered part being spaced apart from the second substrate by a larger distance than the first reflection film fixing surface.

公开(公告)号：US20180138243A1

公开(公告)日：2018-05-17

申请号：US15809158

申请日：2017-11-10

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wei Wang ,  Yafeng Yang ,  Xiaochuan Chen ,  Jing LV ,  Jifeng Tan ,  Can Zhang

IPC: H01L27/32 ,  G02B5/20 ,  G02B5/28 ,  H01L51/52

CPC classification number: H01L27/322 ,  G02B5/201 ,  G02B5/284 ,  H01L27/3211 ,  H01L51/5265 ,  H01L51/5271 ,  H01L51/5284 ,  H01L2251/558

Abstract: The present disclosure relates to a display device in the field of display. The display device comprises a plurality of sub-pixel areas, each of which corresponds to one color, wherein the display device comprises a reflecting interface, a photon conversion layer, and a light filter layer arranged sequentially along a display light emergent direction; in the sub-pixel area corresponding to a target color: the light filter layer is structured to transmit light within a first wavelength range in the display light emergent direction and reflect the light within a second wavelength range, wherein the first wavelength range refers to the wavelength range corresponding to the target color, and the second wavelength range includes a visible light waveband excluding the first wavelength range; the reflecting interface is structured to reflect the light from the light filter layer; and the photon conversion layer is structured to convert the transmitted light within a third wavelength range to the light within the first wavelength range, the third wavelength range is a preset wavelength range beyond the first wavelength range and the second wavelength range includes the third wavelength range. The present disclosure can improve the color conversion efficiency of the display device.

公开(公告)号：US09846079B2

公开(公告)日：2017-12-19

申请号：US15190727

申请日：2016-06-23

Applicant: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration

Inventor： Mark A. Stephen ,  Molly E. Fahey ,  Michael A. Krainak

IPC: G01B9/02 ,  G01J3/45 ,  G02B5/28 ,  G02B5/122 ,  G01J3/26

CPC classification number: G01J3/45 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/26 ,  G01J3/2803 ,  G02B5/122 ,  G02B5/284

Abstract: Systems, methods, and devices may provide an optical scheme that achieves simultaneous wavelength channels and maintains the resolution and luminosity of an etalon. Various embodiments may provide a method to optically recirculate the light reflected from the etalon back through the same etalon at new angles. Various embodiments create an etalon spectrometer based on angular dispersion without moving parts and without losing the light that is not initially transmitted. Various embodiments may provide a spectrally-resolved receiver and/or transmitter. Various embodiments may provide a system including a retro-reflector, a detector or transmitter array, and an etalon disposed between the retro-reflector and the detector or transmitter array, wherein the retro-reflector is configured to redirect light reflected by the etalon back to the etalon at a different angle of incidence than an original angle of incidence on the etalon of the light reflected by the etalon.

公开(公告)号：US09686018B2

公开(公告)日：2017-06-20

申请号：US15074556

申请日：2016-03-18

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Katsumi Uesaka

IPC: H04B10/572 ,  H01S5/0625 ,  H01S5/0683 ,  H01S5/022 ,  H01S5/068 ,  G02B5/28 ,  H01S5/12 ,  H01S5/026 ,  H01S5/06 ,  H01S5/0687

CPC classification number: H04B10/572 ,  G02B5/284 ,  H01S5/02256 ,  H01S5/0261 ,  H01S5/0612 ,  H01S5/06258 ,  H01S5/06817 ,  H01S5/06832 ,  H01S5/0687 ,  H01S5/1209

Abstract: An optical transmitter that narrows the linewidth of its output light is disclosed. The optical transmitter includes a wavelength tunable laser diode (LD) known as a CSG-DR LD integrated with a semiconductor optical amplifier (SOA) driven in a constant magnitude mode. The wavelength of the light output from the LD is determined by transmission through an etalon filter. The optical transmitter feeds the output of the etalon filter back to an injection current supplied to the LD to reduce phase noise inherently contained in the output light.

公开(公告)号：US09519130B2

公开(公告)日：2016-12-13

申请号：US13883332

申请日：2011-10-14

Applicant: Stephen Andrew Webster

Inventor： Stephen Andrew Webster

IPC: G02B5/28 ,  G02B26/00

CPC classification number: G02B26/001 ,  G02B5/284

Abstract: A Fabry-Perot etalon is provided with first and second partially reflecting mirrors (12, 14) attached to a cuboidal spacer (16). The spacer (16) has a cylindrical bore (18) through its center and the mirrors (12, 14) are bonded, on axis, to opposite ends of this bore (18). Four support elements (22-28) are arranged symmetrically with respect to the axis in a tetrahedral configuration and constrain the cuboidal spacer (16) in all degrees of freedom. The cuboidal spacer (16) is flattened at its vertices, which results in modified distortion of the spacer (16) under the action of a compressive force acting through the supports. This structure of etalon provides insensitivity to inertial forces due to acceleration in all six degrees of freedom (three linear and three rotational) simultaneously with insensitivity to differential forces.

Abstract translation: 法布里 - 珀罗标准具设置有附接到立方形间隔件（16）的第一和第二部分反射镜（12,14）。 间隔件（16）具有通过其中心的圆柱形孔（18），并且反射镜（12,14）在轴线上接合到该孔（18）的相对端。 四个支撑元件（22-28）以四面体结构相对于轴对称布置，并以所有自由度约束立方体间隔件（16）。 立方形间隔件（16）在其顶点处变平，这导致在通过支撑件作用的压缩力的作用下间隔件（16）的改变变形。 这种标准具结构对于所有六个自由度（三个线性和三个旋转）的加速同时具有对差分力的不敏感性，对惯性力的不敏感。

公开(公告)号：US20160276803A1

公开(公告)日：2016-09-22

申请号：US15074556

申请日：2016-03-18

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Katsumi UESAKA

IPC: H01S5/068 ,  H04B10/572 ,  H04B10/50 ,  H01S5/062 ,  H01S5/12 ,  H01S5/06 ,  G02B5/28 ,  H01S5/00 ,  H04B10/58 ,  H01S5/125

CPC classification number: H04B10/572 ,  G02B5/284 ,  H01S5/02256 ,  H01S5/0261 ,  H01S5/0612 ,  H01S5/06258 ,  H01S5/06817 ,  H01S5/06832 ,  H01S5/0687 ,  H01S5/1209

Abstract: An optical transmitter that narrows the linewidth of the output light is disclosed. The optical transmitter includes a wavelength tunable laser diode (LD) type of the CSG-DR LD integrated with a semiconductor optical amplifier (SOA) driven by the constant magnitude mode. The wavelength of the light output from the LD is determined through the etalon filter. The optical transmitter feeds the output of the etalon filter back to the injection current supplied to the LID to reduce the phase noise inherently contained in the output light.

Abstract translation: 公开了一种缩小输出光线宽的光发射机。 光发射机包括与由恒定幅度模式驱动的半导体光放大器（SOA）集成的CSG-DR LD的波长可调激光二极管（LD）类型。 通过标准滤波器确定从LD输出的光的波长。 光发射机将标准具滤波器的输出反馈回提供给LID的注入电流，以减少输出光中固有的相位噪声。