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    ETCHED PLATE ALIGNMENT METHOD AND APPARATUS
    211.
    发明申请
    ETCHED PLATE ALIGNMENT METHOD AND APPARATUS 审中-公开
    蚀刻板对准方法和装置

    公开(公告)号：WO2005101072A2

    公开(公告)日：2005-10-27

    申请号：PCT/US2005/008624

    申请日：2005-03-14

    Applicant: IMRA AMERICA, INC. ,  CARR, Charles, D.

    Inventor： CARR, Charles, D.

    IPC: G02B6/00

    CPC classification number: G02B7/003

    Abstract: An alignment apparatus for optical components includes chemically co-etched parts which may be assembled with high tolerances and in a repeatable manner. The resulting construction, together with a translatable stage and/or a micrometer, allows for rapid and extremely precise alignment of the mounted optics.

    Abstract translation: 用于光学部件的对准装置包括化学共蚀刻部件，其可以以高公差和可重复的方式组装。 所得到的结构以及可平移台和/或千分尺允许安装的光学器件的快速且极其精确的对准。

    POLARIZATION MAINTAINING DISPERSION CONTROLLED FIBER LASER SOURCE OF ULTRASHORT PULSES
    214.
    发明申请
    POLARIZATION MAINTAINING DISPERSION CONTROLLED FIBER LASER SOURCE OF ULTRASHORT PULSES 审中-公开
    极化维持分散控制光纤激光源的超声波脉冲

    公开(公告)号：WO2005017955A2

    公开(公告)日：2005-02-24

    申请号：PCT/US2004/017458

    申请日：2004-06-03

    Applicant: IMRA AMERICA, INC. ,  FERMANN, Martin, E. ,  CHO, Gyu, C.

    Inventor： FERMANN, Martin, E. ,  CHO, Gyu, C.

    IPC: H01L

    CPC classification number: H01S3/1118 ,  H01S3/005 ,  H01S3/06708 ,  H01S3/06712 ,  H01S3/094019 ,  H01S3/0941 ,  H01S3/1055

    Abstract: A modelocked linear fiber laser cavity with enhanced pulse-width control includes concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers are included in the cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth are obtained by matching the dispersion value of the fiber Bragg grating to the inverse of the dispersion of the intra-cavity fiber.

    Abstract translation: 具有增强的脉冲宽度控制的锁模线性光纤激光腔包括两个偏振保持和非偏振保持光纤的级联部分。 变形纤维布拉格光栅和集成光纤偏振器被包括在空腔中，以帮助线性偏振空腔的输出。 通过将光纤布拉格光栅的色散值与腔内光纤的色散相反来获得具有大光学带宽的非常短的脉冲。

    MULTI-PULSE AMPLIFICATION
    216.
    发明申请
    MULTI-PULSE AMPLIFICATION 审中-公开

    公开(公告)号：WO2019023015A1

    公开(公告)日：2019-01-31

    申请号：PCT/US2018/042654

    申请日：2018-07-18

    Applicant: IMRA AMERICA, INC.

    Inventor： XU, Jingzhou ,  HORI, Takashi ,  SUZUKI, Shigeru ,  CHO, Gyu, Cheon

    IPC: H01S3/00 ,  H01S3/23

    Abstract: Chirped pulse amplification (CPA) systems configured to generate and amplify multi-pulses are described. The nonlinear interaction of pulses can generate a multiple pulse pack with a dense time separation between pulses. Reducing or eliminating the nonlinear interaction can be provided by spectrally and/or temporally splitting pulses in the chirped amplification system.

    LASER-BASED MODIFICATION OF TRANSPARENT MATERIALS
    217.
    发明申请
    LASER-BASED MODIFICATION OF TRANSPARENT MATERIALS 审中-公开
    透明材料的激光改性

    公开(公告)号：WO2016122821A3

    公开(公告)日：2016-09-22

    申请号：PCT/US2015068066

    申请日：2015-12-30

    Applicant: IMRA AMERICA INC

    Inventor： TURNER MARK ,  ARAI ALAN Y ,  OTA MICHIHARU

    IPC: B23K26/082 ,  B23K26/142 ,  B23K26/146 ,  B23K26/382 ,  B23K26/402

    CPC classification number: B23K26/382 ,  B23K26/0624 ,  B23K26/064 ,  B23K26/0676 ,  B23K26/082 ,  B23K26/142 ,  B23K26/146 ,  B23K26/402 ,  B23K2203/50 ,  B23K2203/52 ,  B23K2203/54

    Abstract: The present disclosure provides examples of a laser-based material processing system for liquid-assisted, ultrashort pulse (USP) laser micromachining. An example material processing application includes drilling thru-holes or blind holes in a nearly transparent glass workpiece (substrate) (1005) using parallel processing with an n x m array of focused laser beams (1040). Methods and systems are disclosed herein which provide for formation of high aspect ratio holes with low taper in fine pitch arrangements.

    Abstract translation: 本公开提供了用于液体辅助超短脉冲（USP）激光微加工的基于激光的材料处理系统的实例。 示例性材料处理应用包括使用具有n×m聚焦激光束阵列（1040）的并行处理在几乎透明的玻璃工件（基板）（1005）中钻孔通孔或盲孔。 本文公开的方法和系统提供了形成具有细锥度布置的低锥度的高纵横比孔。

    LOW CARRIER PHASE NOISE FIBER OSCILLATORS
    218.
    发明申请
    LOW CARRIER PHASE NOISE FIBER OSCILLATORS 审中-公开
    低载波相位噪声光纤振荡器

    公开(公告)号：WO2016048740A3

    公开(公告)日：2016-06-09

    申请号：PCT/US2015050362

    申请日：2015-09-16

    Applicant: IMRA AMERICA INC

    Inventor： FERMANN MARTIN E ,  KUSE NAOYA ,  LEE KEVIN F

    IPC: H01S3/105 ,  H01S3/106 ,  H01S3/107 ,  H01S3/11 ,  H01S3/131 ,  H01S3/139

    CPC classification number: H01S3/1112 ,  H01S3/06758 ,  H01S3/094003 ,  H01S3/0941 ,  H01S3/10061 ,  H01S3/105 ,  H01S3/106 ,  H01S3/1067 ,  H01S3/107 ,  H01S3/108 ,  H01S3/1115 ,  H01S3/1118 ,  H01S3/1305 ,  H01S3/1312 ,  H01S3/139 ,  H01S3/1608 ,  H01S3/2308 ,  H01S2301/02

    Abstract: The present disclosure relates to the design of fiber frequency comb lasers with low carrier phase noise. Examples of these low carrier phase noise oscillators can be constructed from both soliton and dispersion compensated fiber lasers via the use of intra-cavity amplitude modulators such as graphene modulators. In low carrier phase noise dispersion compensated fiber frequency comb lasers, graphene and/or bulk modulators can further be used, for example, for phase locking of one comb line to an external continuous wave (cw) reference laser via high bandwidth control of the repetition rate of the comb laser via the graphene modulator. As a result a low phase noise radio frequency (RF) signal can be generated. In some implementations, a frequency comb exhibiting phase noise suppression of at least about 10 dB over a frequency range up to about 100 kHz is provided.

    Abstract translation: 本公开涉及具有低载波相位噪声的光纤频率梳状激光器的设计。 这些低载波相位噪声振荡器的实例可以通过使用腔内幅度调制器（例如石墨烯调制器）从孤子和色散补偿光纤激光器构成。 在低载波相位噪声色散补偿光纤频率梳状激光器中，可以进一步使用石墨烯和/或体调制器，例如，通过重复的高带宽控制将一个梳状线相位锁定到外部连续波（cw）参考激光器 经由石墨烯调制器的梳状激光器的速率。 结果，可以产生低相位噪声射频（RF）信号。 在一些实施方式中，提供了在高达约100kHz的频率范围内呈现至少约10dB的相位噪声抑制的频率梳。

    POLARIZING AND POLARIZATION MAINTAINING LEAKAGE CHANNEL FIBERS
    220.
    发明申请
    POLARIZING AND POLARIZATION MAINTAINING LEAKAGE CHANNEL FIBERS 审中-公开
    极化和极化维护泄漏通道纤维

    公开(公告)号：WO2015077021A1

    公开(公告)日：2015-05-28

    申请号：PCT/US2014/064066

    申请日：2014-11-05

    Applicant: IMRA AMERICA, INC

    Inventor： SUZUKI, Shigeru ,  MCKAY, Hugh, A ,  FERMANN, Martin, E.

    IPC: G02B6/036 ,  G02B6/02 ,  G02B6/10

    CPC classification number: G02B6/024 ,  G02B6/02009 ,  G02B6/02042 ,  G02B6/02314 ,  G02B6/02319 ,  G02B6/02342 ,  G02B6/02357 ,  G02B6/03694

    Abstract: This disclosure relates to polarizing optical fibers and polarization maintaining optical fibers, including active and/or passive implementations. At least one embodiment includes a polarizing (PZ) optical fiber. The fiber includes stress applying parts (SAPs) disposed in a first cladding region, the SAPs comprising a material with a thermal expansion coefficient, α SAP . A core region is at least partially surrounded by cladding features and the SAPs. The core includes a glass with a thermal expansion coefficient, α core. The arrangement of the SAPs satisfies the relations: R sc = d SAP /D sc, where D sc is the SAP center to core center distance, and d SAP is the average SAP diameter, and dα = lα SAP - α core l- In various embodiments, Rsc and dα are sufficiently large to induce stress birefringence into the core and to provide for a polarized output. Active fibers in which a portion of the fiber is doped may be implemented for application in fiber lasers, fiber amplifiers, and/or optical pulse compressors.

    Abstract translation: 本公开涉及偏振光纤和偏振维持光纤，包括有源和/或无源实现。 至少一个实施例包括偏振（PZ）光纤。 纤维包括设置在第一包层区域中的应力施加部件（SAP），SAP包括具有热膨胀系数的材料αSAP。 核心区域至少部分地被包层特征和SAP包围。 核心包括具有热膨胀系数αcore的玻璃。 SAP的排列满足关系：Rsc = dSAP / Dsc，其中Dsc是SAP中心到核心中心距离，dSAP是平均SAP直径，dα=1αSAP-α核心。在各种实施方案中，Rsc和dα是 足够大以将应力双折射引入芯中并提供偏振输出。 一部分光纤被掺杂的有源光纤可以实现用于光纤激光器，光纤放大器和/或光脉冲压缩机中。

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