公开(公告)号：US20240364069A1

公开(公告)日：2024-10-31

申请号：US18685770

申请日：2022-08-19

Applicant: Pasqal

Inventor： Torben Pöpplau ,  Lucas Béguin ,  Arnaud Dumas

IPC: H01S3/067 ,  G06N10/40 ,  H01S3/00 ,  H01S3/16 ,  H01S3/23

CPC classification number: H01S3/0675 ,  G06N10/40 ,  H01S3/0092 ,  H01S3/1608 ,  H01S3/1616 ,  H01S3/1618 ,  H01S3/2391

Abstract: According to a first aspect, the present disclosure relates to a laser apparatus (210) for excitation of Rubidium (Rb) atoms in a quantum processor comprising an Er-doped DFB fiber laser (201) for emitting light at a wavelength of around 1560 nm; at least a first Yb-doped DFB fiber laser (202) for emitting light at a wavelength of around 1090 nm; a fiber-coupled laser source (203) for emitting light at a wavelength of around 1013 nm; a first fiber-coupled SHG device (301) configured to receive said light from said Yb-doped DFB fiber laser (202) and to produce light at a wavelength of around 545 nm; at least a first fiber-coupled DFG device (302) configured to receive a first part of said light from said Er-doped DFB fiber laser (201) and said light from said first fiber-coupled SHG device (301) and produce light at a wavelength of around 840 nm; a second fiber-coupled SHG device (303) configured to receive said light from said first fiber-coupled DFG device (302) and produce light at a wavelength of around 420 nm; a third fiber-coupled SHG device (304) configured to receive a second part of said light from said Er-doped DFB fiber laser (201) and produce light at a wavelength of around 780 nm, wherein said light at wavelength of around 780 nm is configured to produce MOT laser beams (111, 112, 113) for magneto-optical trapping of the Rb atoms and an optical pumping laser beam (120) for optical pumping of the Rb atoms; wherein said light at a wavelength of around 420 nm and said light at a wavelength of around 1013 nm are configured to produce Rydberg laser beams (141, 142) for transition of Rb atoms to Rydberg states.

公开(公告)号：US20240178630A1

公开(公告)日：2024-05-30

申请号：US18071880

申请日：2022-11-30

Applicant: Cybel, LLC.

Inventor： Wiktor Tomasz Walasik ,  Jean-Marc Pierre Delavaux ,  Alexandre Amavigan

IPC: H01S3/094 ,  H01S3/00 ,  H01S3/067 ,  H01S3/106 ,  H01S3/16

CPC classification number: H01S3/094011 ,  H01S3/0064 ,  H01S3/06716 ,  H01S3/06733 ,  H01S3/094042 ,  H01S3/106 ,  H01S3/1608 ,  H01S3/161 ,  H01S3/1616 ,  H01S3/1618 ,  H01S2301/02

Abstract: A high-power ASE source in the 2 μm wavelength band is achieved by using a relatively high-power pump beam that is generated within a fiber laser-based pump source. An optical isolator is included along the pump output path and is critical in maximizing the level of output power in the generated ASE, since without its use the ASE source begins to exhibit self-lasing cavity modes at a relatively low power level. Various embodiments of the present invention are based upon the use of a two-stage (or more) arrangement for generating a high-power ASE output, including an ASE-generating stage for establishing the broadband ASE spectrum and an amplifier stage for increasing the optical power within the ASE spectrum. The amplifier stage itself may include one or more individual amplifying elements in a concatenated arrangement. Optical isolators are included along the signal paths to prevent the type of reflections that would otherwise trigger self lasing.

公开(公告)号：US20240162678A1

公开(公告)日：2024-05-16

申请号：US18296143

申请日：2023-04-05

Applicant: APPLIED ENERGETICS, INC.

Inventor： Alan Kost ,  Stephen William McCahon

IPC: H01S3/30 ,  H01S3/067 ,  H01S3/08 ,  H01S3/16 ,  H01S3/23

CPC classification number: H01S3/305 ,  H01S3/08013 ,  H01S3/08054 ,  H01S3/1616 ,  H01S3/1618 ,  H01S3/2316 ,  H01S3/0675 ,  H01S2302/00

Abstract: Mid-Wave Infrared (MWIR) laser systems emits at multiple wavelengths spanning the mid-IR transmission bands with tunability not to coincide with absorption lines within the bands. Optical fiber-based pump sources and a series of Raman fiber wavelength shifting amplifiers create a single output aperture that contains multiple spectral lines within each MWIR sub-band.

公开(公告)号：US20230194412A1

公开(公告)日：2023-06-22

申请号：US18082739

申请日：2022-12-16

Applicant: VERSITECH LIMITED ,  ADVANCED BIOMEDICAL INSTRUMENTATION CENTRE LIMITED

Inventor： Kenneth Kin Yip WONG ,  Jiawei SHI ,  Mingsheng LI ,  Jiqiang KANG

IPC: G01N21/17 ,  H01S3/067 ,  H01S3/10 ,  H01S3/094 ,  H01S3/00 ,  H01S3/16 ,  H01S3/108 ,  G02F1/39 ,  H01S3/23 ,  H03F3/19 ,  G01N33/483

CPC classification number: G01N21/1702 ,  H01S3/06716 ,  H01S3/10038 ,  H01S3/094015 ,  H01S3/06791 ,  H01S3/1003 ,  H01S3/005 ,  H01S3/1608 ,  H01S3/1083 ,  G02F1/395 ,  H01S3/1616 ,  H01S3/2316 ,  H03F3/19 ,  G01N33/4833 ,  H03F2200/451 ,  H03F2200/294 ,  G01N2201/06113 ,  G01N2201/08 ,  G01N2201/0633 ,  G01N2201/103 ,  G01N2021/1706

Abstract: An optical-resolution photoacoustic microscopy (OR-PAM) system for visualizing water content deep in biological tissue uses an all-fiber 1930-nm hybrid optical parametrically-oscillating emitter. The emitter includes a tunable laser source whose output is amplified by a first erbium-doped fiber amplifier (EDFA). The output of the first amplifier is modulated with a Mach-Zehnder amplitude modulator that receives an RF signal with a nanosecond pulse width and a multiple kilohertz repetition rate. A second EDFA further amplifies the signal and passes it to a fiber circulator that in turn delivers it to a 1950/1550 mm fiber wavelength-division-multiplexing coupler WDM. The coupler introduces the signal to a cavity that includes a spool of highly nonlinear fiber and a Thulium-doped fiber amplifier TDFA. From the TDFA the signal reaches a 50/50 fiber coupler that sends part to a second output TDFA and guides part back to the cavity through a port of the WDM.

公开(公告)号：US09977184B1

公开(公告)日：2018-05-22

申请号：US15347602

申请日：2016-11-09

Applicant: The University of Hong Kong

Inventor： Kenneth Kin Yip Wong ,  Xiaoming Wei

IPC: G02B6/04 ,  G02B6/42 ,  G02B6/293 ,  H01S3/11 ,  H01S3/067 ,  H01S3/0941 ,  H01S3/094 ,  G02B6/32 ,  H04N7/18

CPC classification number: G02B6/04 ,  G02B6/29359 ,  G02B6/2938 ,  G02B6/32 ,  G02B6/4285 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/0092 ,  H01S3/06791 ,  H01S3/094007 ,  H01S3/094053 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/1106 ,  H01S3/1608 ,  H01S3/1616 ,  H01S3/1618 ,  H04N7/18 ,  H04N7/22

Abstract: A spatio-temporally incremental fiber sweep source includes a laser light pulse generator for generating light pulses and a fiber array of individual optical fibers. The fiber array has an input end and an output end, with the fibers at the input end receiving the light pulses substantially simultaneously. The optical fibers at the output end are arranged in a raster scan pattern, e.g., a square pattern, wherein the optical delay in each fiber is greater than the previous one in the scan pattern direction. As a result light exits the array in a completely optical two dimensional raster scan pattern. It has no moving parts, and thus no mechanical inertia, so extremely high speed scanning can be achieved.

公开(公告)号：US09972960B1

公开(公告)日：2018-05-15

申请号：US15381521

申请日：2016-12-16

Applicant: RAYTHEON COMPANY

Inventor： Christopher R. Koontz ,  David M. Filgas ,  Kurt S. Ketola ,  Carl W. Townsend

IPC: G02B6/10 ,  H01S3/063 ,  H01S3/04 ,  H01S3/094 ,  H01S3/16

CPC classification number: H01S3/0637 ,  H01S3/04 ,  H01S3/0405 ,  H01S3/094003 ,  H01S3/1608 ,  H01S3/161 ,  H01S3/1611 ,  H01S3/1616 ,  H01S3/1618 ,  H01S3/1643 ,  H01S5/02461 ,  H01S5/02476

Abstract: An active optical planar waveguide apparatus includes a planar core layer comprising an active laser ion; one or more cladding layers in optical contact with at least one surface of the planar core layer; a metallic binder layer chemically bonded to an outermost cladding layer of the one or more cladding layers; a metallic adhesion layers disposed on the metallic binder layer; a heatsink for dissipating heat from the planar waveguide; and a metallic thermal interface material (TIM) layer providing a metallurgical bond between the metallic adhesion layer and the heatsink.

公开(公告)号：US20180131154A1

公开(公告)日：2018-05-10

申请号：US15702064

申请日：2017-09-12

Applicant: DICON FIBEROPTICS, INC.

Inventor： Ho-Shang Lee

IPC: H01S3/06 ,  H01L33/00 ,  H01L33/38 ,  H01L33/06 ,  H01L33/24 ,  H01L33/32 ,  H01L33/30 ,  H01L33/58 ,  H01S3/0933 ,  G02B27/28 ,  H01S3/16 ,  H01S3/00 ,  H01S3/067 ,  H03F3/08 ,  H01L33/62

CPC classification number: H01S3/0627 ,  G02B27/286 ,  H01L27/15 ,  H01L33/0079 ,  H01L33/06 ,  H01L33/24 ,  H01L33/30 ,  H01L33/32 ,  H01L33/38 ,  H01L33/58 ,  H01L33/62 ,  H01S3/005 ,  H01S3/025 ,  H01S3/0632 ,  H01S3/0637 ,  H01S3/06754 ,  H01S3/0933 ,  H01S3/10061 ,  H01S3/1603 ,  H01S3/1608 ,  H01S3/1613 ,  H01S3/1616 ,  H01S3/176 ,  H01S3/2308 ,  H01S5/0217 ,  H01S5/4031 ,  H03F3/08

Abstract: A solid-state optical amplifier is described, having an active core and doped cladding in a single chip. An active optical core runs through a doped cladding in a structure formed on a substrate. A light emitting structure, such as an LED, is formed within and/or adjacent to the optical core. The cladding is doped, for example, with erbium or other rare-earth elements or metals. Several exemplary devices and methods of their formation are given.

公开(公告)号：US09954341B2

公开(公告)日：2018-04-24

申请号：US15185867

申请日：2016-06-17

Applicant: Marysol Technologies

Inventor： Dan Bar-Joseph

IPC: H01S3/139 ,  H01S3/08 ,  H01S3/16 ,  H01S3/06 ,  H01S3/092 ,  H01S3/042 ,  H01S3/04 ,  H01S3/105

CPC classification number: H01S3/08059 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/061 ,  H01S3/092 ,  H01S3/105 ,  H01S3/139 ,  H01S3/161 ,  H01S3/1616 ,  H01S3/1623 ,  H01S3/1643

Abstract: A flash lamp pumped CTH:YAG resonating laser and method for operating the laser whereby the laser is capable of lasing at the 2097 nm wavelength. The method for operating at the 2097 nm wavelength include utilizing an output coupler with a lower reflectivity and minimizing the passive losses in the laser. The resulting laser is capable of operating with a lower intra-cavity energy density and increased output energy, decreasing the probability of optical breakdown of the laser components when operated.

公开(公告)号：US09855099B2

公开(公告)日：2018-01-02

申请号：US15165475

申请日：2016-05-26

Applicant: Light Age, Inc.

Inventor： Chunbai Wu ,  Donald F. Heller

IPC: A61B18/20 ,  H01S3/16 ,  H01S3/04 ,  H01S3/06 ,  A61B18/00 ,  H01S3/094 ,  H01S3/00 ,  H01S3/02 ,  H01S3/042

CPC classification number: A61B18/203 ,  A61B2018/00452 ,  A61B2018/2035 ,  A61B2018/2065 ,  H01S3/0007 ,  H01S3/005 ,  H01S3/025 ,  H01S3/0404 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/061 ,  H01S3/094038 ,  H01S3/1616 ,  H01S3/1643

Abstract: In some embodiments, the instant invention provides for a system that includes at least the following components: (i) an Alexandrite laser pumping subsystem; where the Alexandrite laser pumping subsystem is configured to: 1) produce wavelengths between 700 and 820 nm, and 2) produce a pump pulse having: i) a duration between 1 to 10 milliseconds, and ii) an energy measuring up to 100 Joules; where the Alexandrite laser pumping subsystem includes: 1) an optical fiber, and 2) a Lens system, (ii) a Thulium doped Yttrium Aluminum Garnet (Tm:YAG) laser subsystem; where the Tm:YAG laser subsystem includes: 1) a Tm:YAG gain medium, 2) a rod heat sink, and 3) at least one cooling device, (iii) a wavelength selecting device, where the wavelength selecting device is configured to deliver a wavelength between 1.75 microns to 2.1 microns; and where the system is configured to produce a high energy conversion efficiency.

公开(公告)号：US09819141B2

公开(公告)日：2017-11-14

申请号：US15146675

申请日：2016-05-04

Applicant: IMRA America, Inc.

Inventor： Martin E. Fermann

IPC: H01S3/11 ,  H01S3/067 ,  H01S3/1055 ,  H01S3/106 ,  H01S3/107 ,  H01S3/13 ,  H01S3/16

CPC classification number: H01S3/1112 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/0675 ,  H01S3/1055 ,  H01S3/1067 ,  H01S3/107 ,  H01S3/1115 ,  H01S3/1307 ,  H01S3/161 ,  H01S3/1616 ,  H01S2301/085

Abstract: Examples of robust self-starting passively mode locked fiber oscillators are described. In certain implementations, the oscillators are configured as Fabry-Perot cavities containing an optical loop mirror on one cavity end and a bulk mirror or saturable absorber on the other end. The loop mirror can be further configured with an adjustable line phase delay to optimize modelocking. All intra-cavity fiber(s) can be polarization maintaining. Dispersion compensation components such as, e.g., dispersion compensation fibers, bulk diffraction gratings or fiber Bragg gratings may be included. The oscillators may include a bandpass filter to obtain high pulse energies when operating in the similariton regime. The oscillator output can be amplified and used whenever high power short pulses are required. For example the oscillators can be configured as frequency comb sources or supercontinuum sources. In conjunction with repetition rate modulation, applications include dual scanning delay lines and trace gas detection.