公开(公告)号：US20240339802A1

公开(公告)日：2024-10-10

申请号：US18294579

申请日：2022-08-04

Applicant: ETH Zurich

Inventor： Ursula Keller ,  Christopher Phillips ,  Justinas Pupeikis ,  Benjamin Willenberg

IPC: H01S3/1118 ,  H01S3/081

CPC classification number: H01S3/1118 ,  H01S3/0817

Abstract: An apparatus for emitting electromagnetic radiation includes a gain element, an optical arrangement defining a resonator and arranged to re-direct radiation emitted by the gain element along a beam path back onto the gain element, the optical arrangement including an output coupler configured to couple a portion of the radiation in the resonator out of the resonator, and a pump arrangement configured to pump the gain element. The optical arrangement further includes a passive device placed in the resonator in the beam path, the passive device having at least two surface portions at an angle to each other. The passive device is arranged to direct first radiation portions and second radiation portions of the radiation, which first and second radiation portions are incident on different ones of the surface portions, to be spatially separated. The apparatus is suitable as a source of dual-comb pulsed laser radiation.

公开(公告)号：US20230170664A1

公开(公告)日：2023-06-01

申请号：US17959285

申请日：2022-10-03

Applicant: Vescent Photonics LLC

Inventor： Juan Pino ,  Eng Hiang Mark Yeo ,  Kurt Richard Vogel

IPC: H01S3/1118 ,  G02B27/30 ,  H01S3/105

CPC classification number: H01S3/1118 ,  G02B27/30 ,  H01S3/105 ,  H01S3/094003

Abstract: A mode locking device is disclosed for altering repetition rate in a mode-locked laser. In an example device, laser light is coupled from a fiber into a cavity through a sliding pigtail collimator with a diameter selected such that it is a close tolerance fit with a female snout on a package. A lens focuses laser light to an appropriate spot size onto a SAM or SESAM, such that back-reflection into the fiber is maximized, A piezoelectric transducer is mounted in cooperation with the SAM or SESAM for cavity tuning.

公开(公告)号：US20190072600A1

公开(公告)日：2019-03-07

申请号：US15694743

申请日：2017-09-01

Applicant: X Development LLC

Inventor： Martin Friedrich Schubert ,  Michael Jason Grundmann

IPC: G01R29/08 ,  H01S5/065 ,  H01S5/06 ,  H01S3/067 ,  H01S3/11

CPC classification number: G01R29/0885 ,  A61B5/04001 ,  A61B5/0476 ,  A61B5/4064 ,  A61B2562/0233 ,  G01R29/12 ,  H01S3/0014 ,  H01S3/067 ,  H01S3/1109 ,  H01S3/1118 ,  H01S3/1603 ,  H01S5/0028 ,  H01S5/0614 ,  H01S5/0657

Abstract: An electro-optic (EO) sensor and a method for detecting a local electric field strength, the EO sensor including: a first optical cavity; a gain medium within the first optical cavity; a mode locking element within the first optical cavity; and an EO material within the first optical cavity, an effective optical path length of the EO material being variable depending on the local electric field strength at the EO sensor, wherein the gain medium, the mode locking element, and the EO material are arranged in a common path of light within the first optical cavity, and wherein during operation, the EO sensor emits pulses of light at a repetition rate characteristic of an effective optical path length of the light within the first optical cavity, the effective optical path length varying depending on the electric field strength local to the EO sensor.

公开(公告)号：US20190013639A1

公开(公告)日：2019-01-10

申请号：US15643456

申请日：2017-07-06

Applicant: Industrial Technology Research Institute

Inventor： Jin-Long Peng

IPC: H01S3/11 ,  H01S3/067 ,  H01S3/08

CPC classification number: H01S3/1118 ,  H01S3/06712 ,  H01S3/06791 ,  H01S3/08054 ,  H01S3/1112 ,  H01S5/5009

Abstract: A laser device with a ring laser resonator includes a polarization maintaining (PM) fiber, a first quarter waveplate, and an optical isolator. The PM fiber has a light input end and a light output end and is configured to guide a first linearly polarized light with a first phase along a fast axis of the PM fiber from the light input end and a second linearly polarized light with a second phase along a slow axis of the PM fiber from the input end. The first quarter waveplate is disposed at the light output end of the PM fiber and configured to convert the first and the second linearly polarized lights into left-handed and right-handed (or right-handed and left-handed) circularly polarized lights, respectively. The optical isolator is configured to unidirectionally transmit a laser pulse in the ring laser resonator.

公开(公告)号：US20180316159A1

公开(公告)日：2018-11-01

申请号：US15814087

申请日：2017-11-15

Applicant: Arizona Board of Regents on behalf of The University of Arizona

Inventor： Isak R. Kilen ,  Stephan W. Koch ,  Jerome V. Moloney

IPC: H01S5/065 ,  H01S5/042 ,  H01S3/11 ,  H01S3/06 ,  H01S5/187 ,  H01S5/183 ,  H01S5/14 ,  H01S5/04 ,  H01S3/094 ,  H01S5/024 ,  H01S5/34

CPC classification number: H01S5/065 ,  H01S3/0604 ,  H01S3/094026 ,  H01S3/1115 ,  H01S3/1118 ,  H01S5/02484 ,  H01S5/041 ,  H01S5/042 ,  H01S5/0657 ,  H01S5/14 ,  H01S5/18341 ,  H01S5/18383 ,  H01S5/187 ,  H01S5/34

Abstract: A surface-emitting semiconductor laser system contains at least one MQW unit of at least three constituent QWs, axially separated from one another substantially non-equidistantly. The MQW unit is located within the axial extent covered, in operation of the laser, by a half-cycle of the standing wave of the field at a wavelength within the gain spectrum of the gain medium; immediately neighboring nodes of the standing wave are on opposite sides of the MQW unit. So-configured MQW unit can be repeated multiple times and/or complemented with individual QWs disposed outside of the half-cycle of the standing wave with which such MQW unit is associated. The semiconductor laser further includes a pump source configured to input energy in the semiconductor gain medium and a mode-locking element to initiate mode-locking.

公开(公告)号：US20180102624A1

公开(公告)日：2018-04-12

申请号：US15726486

申请日：2017-10-06

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Young Min Jhon ,  Young In Jhon ,  BYUNGHYUCK MOON ,  MINAH SEO ,  Taikjin Lee ,  JAE HUN KIM ,  Young Tae Byun ,  Seok Lee

IPC: H01S3/11 ,  H01S3/067 ,  H01S3/0941 ,  H01S3/094 ,  C01B32/921 ,  C01C3/08 ,  C09K11/67 ,  C09K11/02

CPC classification number: H01S3/1115 ,  B82Y20/00 ,  B82Y30/00 ,  C01B32/921 ,  C01C3/08 ,  C09K11/025 ,  C09K11/67 ,  H01S3/067 ,  H01S3/06712 ,  H01S3/06791 ,  H01S3/094003 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/11 ,  H01S3/1118 ,  H01S3/1608 ,  Y10S977/755 ,  Y10S977/814 ,  Y10S977/825 ,  Y10S977/951

Abstract: Provided are a saturable absorber including at least one material selected from a group of MXenes, and a Q-switching and mode-locked pulsed laser system using the same.

公开(公告)号：US20170261832A1

公开(公告)日：2017-09-14

申请号：US15457928

申请日：2017-03-13

Applicant: AOSense, Inc.

Inventor： Arman Cingoz ,  Dmitriy Churin ,  Jonathan Roslund ,  Miao Zhu

IPC: G02F1/35 ,  G02F1/355 ,  H01S3/11 ,  H01S3/067

CPC classification number: G02F1/353 ,  G02F1/3501 ,  G02F1/3544 ,  G02F1/3551 ,  G02F2203/56 ,  H01S3/0085 ,  H01S3/067 ,  H01S3/0675 ,  H01S3/06791 ,  H01S3/0941 ,  H01S3/10092 ,  H01S3/106 ,  H01S3/107 ,  H01S3/1106 ,  H01S3/1112 ,  H01S3/1118 ,  H01S3/1304 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/1608 ,  H01S3/1618

Abstract: A system for optical comb carrier envelope offset frequency control includes a mode-locked laser and a frequency shifter. The mode-locked laser produces a laser output. The frequency shifter shifts the laser output to produce a frequency shifted laser output based at least in part on one or more control signals. The frequency shifted laser output has a controlled carrier envelope offset frequency. The frequency shifter includes a first polarization converter, a rotating half-wave plate, and a second polarization converter.

公开(公告)号：US20170187162A1

公开(公告)日：2017-06-29

申请号：US15304905

申请日：2015-04-20

Applicant: SOLUS TECHNOLOGIES LIMITED

Inventor： Craig James HAMILTON ,  Graeme Peter Alexander MALCOLM

IPC: H01S3/11 ,  H01S3/081 ,  H01S5/343 ,  H01S5/14 ,  H01S5/183 ,  H01S5/04 ,  H01S5/024

CPC classification number: H01S3/1115 ,  H01S3/0816 ,  H01S3/0817 ,  H01S3/1118 ,  H01S5/02415 ,  H01S5/02423 ,  H01S5/02484 ,  H01S5/041 ,  H01S5/14 ,  H01S5/18383 ,  H01S5/34313 ,  H01S2304/04

Abstract: A passively mode-locking laser and corresponding method is described. The laser comprises a resonator (2) terminated by first (3) and second (4) mirrors and folded by a third (5) and fourth (6) mirror. The third mirror comprises a reflector (14) surmounted by a multilayer semiconductor gain medium (15) including at least one quantum well layer while the second mirror (4) comprises an intensity saturable mirror. The resonator is configured to provide a cross sectional area of an intra cavity resonating field on the intensity saturable mirror that is greater than or equal to a cross sectional area of the intra cavity resonating field on the multilayer semiconductor gain medium. This arrangement provides a passively mode-locking laser that exhibits increased stability when compared to those systems known in the art.

公开(公告)号：US09595802B2

公开(公告)日：2017-03-14

申请号：US14223287

申请日：2014-03-24

Applicant: IMRA America, Inc.

Inventor： Martin E. Fermann ,  Donald J. Harter

IPC: H01S3/11 ,  H01S3/067 ,  G02B6/26 ,  H01S3/094 ,  H01S3/08 ,  H01S3/16 ,  H01S3/00

CPC classification number: H01S3/06708 ,  G02B6/26 ,  H01S3/0092 ,  H01S3/067 ,  H01S3/06704 ,  H01S3/06712 ,  H01S3/06716 ,  H01S3/06725 ,  H01S3/06729 ,  H01S3/06733 ,  H01S3/06737 ,  H01S3/06745 ,  H01S3/06783 ,  H01S3/08045 ,  H01S3/08054 ,  H01S3/094007 ,  H01S3/094019 ,  H01S3/094042 ,  H01S3/094069 ,  H01S3/1106 ,  H01S3/1109 ,  H01S3/1115 ,  H01S3/1118 ,  H01S3/1608 ,  H01S3/1618

Abstract: A laser utilizes a cavity design which allows the stable generation of high peak power pulses from mode-locked multi-mode fiber lasers, greatly extending the peak power limits of conventional mode-locked single-mode fiber lasers. Mode-locking may be induced by insertion of a saturable absorber into the cavity and by inserting one or more mode-filters to ensure the oscillation of the fundamental mode in the multi-mode fiber. The probability of damage of the absorber may be minimized by the insertion of an additional semiconductor optical power limiter into the cavity.

公开(公告)号：US20160344156A1

公开(公告)日：2016-11-24

申请号：US15161088

申请日：2016-05-20

Applicant: Quantum-Si Incorporated

Inventor： Jonathan M. Rothberg ,  Jason W. Sickler ,  Lawrence C. West ,  Faisal Ahmad ,  Paul E. Glenn ,  Jack Jewell ,  John Glenn ,  Jose Camara ,  Jeremy Christopher Jordan ,  Todd Rearick ,  Farshid Ghasemi ,  Jonathan C. Schultz ,  Keith G. Fife

IPC: H01S3/11 ,  H01S3/101 ,  C12Q1/68 ,  H01S3/10 ,  H01S3/0941 ,  H01S3/00 ,  H01S3/13

CPC classification number: C12Q1/6869 ,  G01N21/6408 ,  G01N21/645 ,  G01N21/6458 ,  G01N2021/6439 ,  G01N2021/6441 ,  G01S7/4814 ,  H01L27/14603 ,  H01S3/0071 ,  H01S3/0405 ,  H01S3/0817 ,  H01S3/0941 ,  H01S3/10061 ,  H01S3/101 ,  H01S3/105 ,  H01S3/1115 ,  H01S3/1118 ,  H01S3/1305 ,  H01S3/1611 ,  H01S3/1673

Abstract: Apparatus and methods for producing ultrashort optical pulses are described. A high-power, solid-state, passively mode-locked laser can be manufactured in a compact module that can be incorporated into a portable instrument for biological or chemical analyses. The pulsed laser may produce sub-100-ps optical pulses at a repetition rate commensurate with electronic data-acquisition rates. The optical pulses may excite samples in reaction chambers of the instrument, and be used to generate a reference clock for operating signal-acquisition and signal-processing electronics of the instrument.

Abstract translation: 描述了用于产生超短光脉冲的装置和方法。 大功率，固态，被动锁模激光器可以在紧凑的模块中制造，可以并入到用于生物或化学分析的便携式仪器中。 脉冲激光器可以以与电子数据采集速率相称的重复速率产生次100ps光脉冲。 光脉冲可以在仪器的反应室中激发样品，并用于产生用于操作仪器的信号采集和信号处理电子设备的参考时钟。