公开(公告)号：US20230378710A1

公开(公告)日：2023-11-23

申请号：US17749078

申请日：2022-05-19

Applicant: Lightel Technologies, Inc.

Inventor： Shangyuan Huang ,  Po-Chih Hsu ,  Hsuan-Chieh Chang ,  Pai-Sheng Shen

IPC: H01S3/094 ,  H01S3/067 ,  H01S3/04

CPC classification number: H01S3/094019 ,  H01S3/094007 ,  H01S3/06745 ,  H01S3/04

Abstract: An apparatus includes an all-fiber side-pump combiner fabrication system and a control unit coupled to control operations of the all-fiber side-pump combiner fabrication system to produce a (N+1)×1 combiner with N side pump fibers.

公开(公告)号：US11824321B2

公开(公告)日：2023-11-21

申请号：US17879826

申请日：2022-08-03

Applicant: SHIMADZU CORPORATION

Inventor： Yusuke Nagai ,  Kotaro Kajikawa

IPC: H01S3/20 ,  H01S3/16 ,  H01S5/36 ,  H01S3/213 ,  H01S3/23 ,  H01S3/108 ,  H01S3/30 ,  G01N15/06 ,  G01N21/05 ,  G01N21/64 ,  H01S5/042 ,  H01S3/094

CPC classification number: H01S3/168 ,  H01S3/1086 ,  H01S3/213 ,  H01S3/2358 ,  H01S3/307 ,  H01S5/36 ,  G01N15/06 ,  G01N21/05 ,  G01N21/6402 ,  G01N2015/0693 ,  G01N2201/06113 ,  H01S3/094034 ,  H01S5/042

Abstract: A tube preparation step of preparing a resin tube that has a tube wall impregnable with a solution including a fine substance and is made of a light-transmitting resin material, a solution preparation step of preparing a solution that includes a fine fluorescent substance that emits fluorescence or a fine scattering substance that scatters light as an oscillation material and an impregnation step of causing the resin tube to be immersed in the solution and causing the tube wall of the resin tube to be impregnated with the oscillation material, are included.

公开(公告)号：US20230361525A1

公开(公告)日：2023-11-09

申请号：US18311379

申请日：2023-05-03

Applicant: II-VI Delaware, Inc.

Inventor： Zhiqian ZHU ,  Ian Peter McClean ,  Yongjun FU ,  Yongshi GU

IPC: H01S3/13 ,  G01R19/165 ,  H01S3/067 ,  H01S3/16 ,  H01S3/10 ,  H01S3/094

CPC classification number: H01S3/1305 ,  G01R19/16571 ,  H01S3/06716 ,  H01S3/1608 ,  H01S3/10023 ,  H01S3/1301 ,  H01S3/094003 ,  H01S3/0677 ,  H01S2301/02

Abstract: An EDFA may include an input photodiode configured to generate a control signal based on an input signal. The EDFA may include a blind stage configured to generate an amplified signal based on the control signal and the input signal. The EDFA may include a non-blind stage configured to generate an output signal based on the amplified signal within the blind stage, the control signal, and a feedback signal. The EDFA may include a filter configured to generate a filtered signal based on the output signal. The EDFA may include an output photodiode configured to generate the feedback signal based on the filtered signal. The EDFA may include an alarm device. A signal within the non-blind stage may be generated based on the feedback signal and the control signal. The alarm device may be configured to generate an alarm signal when the signal exceeds a threshold value.

公开(公告)号：US20230333315A1

公开(公告)日：2023-10-19

申请号：US17810087

申请日：2022-06-30

Applicant: Lumentum Operations LLC

Inventor： Patrick GREGG ,  Richard D. FAULHABER ,  Martin H. MUENDEL ,  Jeff GREGG ,  Kyle R. SCHNEIDER

IPC: G02B6/04 ,  H01S3/094 ,  G02B6/02

CPC classification number: G02B6/04 ,  H01S3/094053 ,  G02B6/02

Abstract: A laser component includes a pump-signal combiner, which includes a first capillary, a plurality of pump fibers, a second capillary, and a signal fiber. The plurality of pump fibers, the second capillary, and the signal fiber are arranged in a bundle configuration. The bundle configuration is disposed within an internal portion of the first capillary. A cross-section of the bundle configuration includes an outer area, in which the plurality of pump fibers are disposed, and an inner area, in which the second capillary and the signal fiber are disposed. The signal fiber is disposed within an internal portion of the second capillary.

公开(公告)号：US20230273503A1

公开(公告)日：2023-08-31

申请号：US18018137

申请日：2021-07-30

Applicant: UNIVERSITÉ LIBRE DE BRUXELLES

Inventor： Francois LEO ,  Simon-Pierre GORZA ,  Nicolas ENGLEBERT

IPC: G02F1/39 ,  G02F1/35 ,  G02F1/355 ,  G02F1/383 ,  H01S3/094

CPC classification number: G02F1/395 ,  G02F1/3536 ,  G02F1/3513 ,  G02F1/3558 ,  G02F1/383 ,  H01S3/094076 ,  H01S3/094003 ,  H01S3/094061 ,  G02F1/3503 ,  G02F2203/15 ,  G02F2203/48 ,  H01S3/06754

Abstract: An optical parametric oscillator and method for generating coherent signal light involve a resonant optical cavity for coherent signal light, and in the cavity a non-parametric gain element for amplifying the coherent signal light to only partially compensate for passive optical roundtrip losses, thereby obtaining lower effective roundtrip losses. A parametric gain element is arranged in the cavity, for converting coherent pump light into coherent signal light through an instantaneous nonlinear optical interaction. The parametric oscillator has means for adjusting an intracavity optical power of the coherent pump light above a threshold value, where the parametric gain is balancing the effective roundtrip losses, thus inducing sustained oscillations of the signal light in the optical cavity. The non-parametric gain element is configured to have a limited non-parametric gain over a gain bandwidth of the parametric gain element, which is less than the passive optical roundtrip losses in the gain bandwidth.

公开(公告)号：US20230268709A1

公开(公告)日：2023-08-24

申请号：US17676307

申请日：2022-02-21

Applicant: UCHICAGO ARGONNE, LLC

Inventor： Benjamin Diroll

IPC: H01S3/094 ,  H01S3/16

CPC classification number: H01S3/094096 ,  H01S3/169

Abstract: Optical gain mediums are required for lasing devices and high intensity optical systems across a wide range of applications. A method for achieving optical gain includes an optical gain medium having colloidal quantum fountains includes providing pump radiation to the gain medium. The electrons of the colloidal quantum fountains are promoted from a valence band to an excited state in a conduction band of the colloidal quantum fountains. Seed radiation is provided to the gain medium and electrons of the quantum fountains are de-excited by the seed radiation through stimulated emission from the excited state to a lower energy state of the conduction band, thereby providing optical gain.

公开(公告)号：US11735883B2

公开(公告)日：2023-08-22

申请号：US16972514

申请日：2019-05-31

Applicant: IMAGINE OPTIC

Inventor： Guillaume Gorju ,  Adam Ayeb ,  Xavier Levecq

IPC: H01S3/094 ,  H01S3/23 ,  G02B26/00 ,  H01S3/0941

CPC classification number: H01S3/094053 ,  G02B26/002 ,  H01S3/09415 ,  H01S3/094076 ,  H01S3/2316 ,  G02B26/007 ,  H01S2301/206

Abstract: The present description relates, according to one aspect, to a high-peak-power laser pulse generation system (10), comprising at least one first light source (101) for emitting first laser pulses (IL), a fiber device (110) for transporting said first laser pulses, comprising at least one first multimode fiber with a single core designed to receive said first laser pulses, and a module (102) for temporally shaping said first laser pulses, arranged upstream of the fiber device, configured so as to reduce the power spectral density of said pulses by reducing the temporal coherence.

公开(公告)号：US20230261430A1

公开(公告)日：2023-08-17

申请号：US17920847

申请日：2021-01-15

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takashi SEKINE ,  Yuma HATANO ,  Yuki MURAMATSU ,  Yasuki TAKEUCHI ,  Yoshinori TAMAOKI

IPC: H01S3/0941 ,  H01S3/094

CPC classification number: H01S3/09415 ,  H01S3/094049

Abstract: An optical amplification device includes: a laser medium that amplifies input light to generate output light; an excitation light source that supplies excitation light used for amplifying the input light, to the laser medium; a resonator that includes a pair of first optical elements and disposed to optically face each other with the laser medium interposed between the first optical elements and that resonates generated light generated in the laser medium through the supply of the excitation light; and an optical switch disposed on an optical path of the resonator between the pair of first optical elements.

公开(公告)号：US20230246408A1

公开(公告)日：2023-08-03

申请号：US18092187

申请日：2022-12-30

Applicant: OPTIWAVE SYSTEMS INC.

Inventor： Ahmad Atieh ,  Muhammad Jawad Mirza ,  Salman Abdul Ghafoor

IPC: H01S3/094 ,  H01S3/16 ,  H01S3/067 ,  H01S3/0941 ,  H01S3/23

CPC classification number: H01S3/094003 ,  H01S3/161 ,  H01S3/1608 ,  H01S3/1616 ,  H01S3/06754 ,  H01S3/0941 ,  H01S3/094042 ,  H01S3/23

Abstract: A Holmium-doped fiber amplifier (HDFA) with cascaded pumping is disclosed. The cascaded pumping has at least two pumping stages arranged so that an emission spectrum of a preceding pumping stage at least partly corresponds to an absorption spectrum of the succeeding pumping stage, and the pumping stages are staggered so that an emission spectrum of the last pumping stage at least partly corresponds to an absorption spectrum of the Holmium-doped fiber.

公开(公告)号：US11695248B2

公开(公告)日：2023-07-04

申请号：US17665087

申请日：2022-02-04

Applicant: Gigaphoton Inc.

Inventor： Keisuke Ishida

IPC: H01S3/134 ,  H01S3/102 ,  H01S3/094 ,  H01S3/10

CPC classification number: H01S3/1024 ,  H01S3/094076 ,  H01S3/10015

Abstract: A laser device may include a laser resonator; a chamber arranged on an optical path of the laser resonator; a pair of electrodes arranged in the chamber; a power source applying a voltage to the electrodes; a storage unit storing a voltage value; and a control unit configured to set an application voltage value of the voltage applied to the electrodes as setting the application voltage value for outputting a pulse whose pulse number is equal to or larger than 1 and smaller than i based on the voltage command value and the voltage value stored in the storage unit, and setting the application voltage for outputting a pulse whose pulse number is equal to or larger than i and smaller than j based on the voltage command value and an offset value corresponding to the voltage command value, where i>1 and j>i.