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14 条记录 (耗时 0.028 秒)

    Stretched-pulse fiber laser
    2.
    发明授权
    Stretched-pulse fiber laser 失效
    拉伸脉冲光纤激光器

    公开(公告)号：US5617434A

    公开(公告)日：1997-04-01

    申请号：US635846

    申请日：1996-04-22

    申请人： Kohichi R. Tamura ,  Erich P. Ippen ,  Hermann A. Haus ,  Lynn E. Nelson ,  Christopher R. Doerr

    发明人： Kohichi R. Tamura ,  Erich P. Ippen ,  Hermann A. Haus ,  Lynn E. Nelson ,  Christopher R. Doerr

    IPC分类号： H01S3/067 ,  H01S3/098 ,  H01S3/30

    CPC分类号： H01S3/06791 ,  H01S2301/08 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/1112 ,  Y10S372/70

    摘要： A fiber laser for producing high energy ultrashort laser pulses, having a positive-dispersion fiber segment and a negative-dispersion fiber segment joined in series with the positive-dispersion fiber segment to form a laser cavity. With this configuration, soliton effects of laser pulse circulation in the cavity are suppressed and widths of laser pulses circulating in the cavity undergo large variations between a maximum laser pulse width and a minimum laser pulse width during one round trip through the cavity. The fiber laser also provides means for modelocking laser radiation in the laser cavity, means for providing laser radiation gain in the laser cavity, and means for extracting laser pulses from the laser cavity. Using selected positive- and negative-dispersion fiber segments, the laser cavity exhibits a net positive group velocity dispersion, and the ratio of the maximum laser pulse width to the minimum laser pulse width attained during one round trip through the cavity is greater than 5, and preferably greater than 10. The laser cavity may be configured as a linear cavity geometry, a ring cavity geometry, a figure eight geometry, or a Sagnac loop reflector geometry, among others. Preferably the ring cavity is configured to achieve unidirectional circulation of laser pulses in the ring cavity, and with this configuration, is shown to produce laser pulses having a pulse width of less than 100 fs and a pulse energy of at least 80 pJ.

    摘要翻译： 一种用于生产高能超短激光脉冲的光纤激光器，具有与正色散光纤段串联的正色散光纤段和负色散光纤段，以形成激光腔。 通过这种配置，抑制腔内的激光脉冲循环的孤子效应，并且在通过空腔的一次往返行程期间在空腔中循环的激光脉冲的宽度在最大激光脉冲宽度和最小激光脉冲宽度之间经历较大的变化。 光纤激光器还提供用于在激光腔中锁模激光辐射的装置，用于在激光腔中提供激光辐射增益的装置，以及用于从激光腔提取激光脉冲的装置。 使用选定的正和负色散光纤段，激光腔表现出净正组速度色散，最大激光脉冲宽度与通过腔体的一次往返行程中获得的最小激光脉冲宽度之比大于5， 并且优选地大于10.激光腔可以被配置为线性腔几何形状，环形腔几何形状，图形八面体形状或者Sagnac环形反射器几何形状等等。 优选地，环腔被配置为实现激光脉冲在环腔中的单向循环，并且在该配置下，示出了产生具有小于100fs的脉冲宽度和至少80pJ的脉冲能量的激光脉冲。

    INTEGRATED SILICON-BASED NONLINEAR PHOTODETECTOR
    4.
    发明申请
    INTEGRATED SILICON-BASED NONLINEAR PHOTODETECTOR 有权
    一体化硅基非线性光电转换器

    公开(公告)号：US20100166364A1

    公开(公告)日：2010-07-01

    申请号：US12611287

    申请日：2009-11-03

    申请人： Jorge Bravo Abad ,  Erich P. Ippen ,  Marin Soljacic

    发明人： Jorge Bravo Abad ,  Erich P. Ippen ,  Marin Soljacic

    IPC分类号： G02B6/12

    CPC分类号： G02B6/12004 ,  B82Y20/00 ,  G02B6/1225 ,  H01L31/0352 ,  H01L31/101

    摘要： Disclosed is a system including an integrated silicon-based structure including a microcavity configured to receive optical energy from an input beam carrying an optical signal and absorb the optical energy by a nonlinear multi-photon absorption process. For example, the multi-photon absorption process can be two-photon absorption (TPA). The integrated silicon-based structure further includes electrodes responsive to the nonlinear multi-photon absorption process in the microcavity for producing an electronic signal indicative of the optical signal. A related method is also disclosed.

    摘要翻译： 公开了一种包括集成硅基结构的系统，其包括被配置为从携带光信号的输入光束接收光能并通过非线性多光子吸收过程吸收光能的微腔。 例如，多光子吸收过程可以是双光子吸收（TPA）。 集成硅基结构还包括响应于微腔中的非线性多光子吸收过程的电极，用于产生指示光信号的电子信号。 还公开了相关方法。

    High-Repetition-Rate Guided-Mode Femtosecond Laser
    6.
    发明申请
    High-Repetition-Rate Guided-Mode Femtosecond Laser 有权
    高重复率引导式飞秒激光

    公开(公告)号：US20090310631A1

    公开(公告)日：2009-12-17

    申请号：US12475674

    申请日：2009-06-01

    申请人： Franz X. Kaertner ,  Hyunil Byun ,  Jian Chen ,  Dominik Pudo ,  Erich P. Ippen

    发明人： Franz X. Kaertner ,  Hyunil Byun ,  Jian Chen ,  Dominik Pudo ,  Erich P. Ippen

    IPC分类号： H01S3/10 ,  H01S3/08 ,  H01S3/04

    CPC分类号： H01S3/1115 ,  H01S3/0632 ,  H01S3/067 ,  H01S3/06725 ,  H01S3/06741 ,  H01S3/06791 ,  H01S3/2308 ,  H01S2301/085

    摘要： Femtosecond pulse trains in waveguide lasers with high fundamental repetition rates are achieved by exploiting the nonlinearity in the waveguide. Components of the apparatus include an optical resonator, a saturable absorber for starting and stabilizing mode-locking, and a gain element. Part of the laser cavity or the entire laser cavity is made of waveguide or fiber (collectively called “waveguide” herein). The net dispersion of the laser cavity can be anomalous. This anomalous dispersion in combination with the positive self-phase modulation nonlinearity in the waveguide creates soliton formation to shorten the pulse duration in the invented lasers. Conversely, a normal dispersive waveguide with negative self-phase modulation nonlinearity can also be used.

    摘要翻译： 通过利用波导中的非线性来实现具有高基波重复率的波导激光器中的飞秒脉冲串。 该装置的组件包括光谐振器，用于启动和稳定锁模的饱和吸收器和增益元件。 激光腔或整个激光腔的一部分由波导或光纤（这里统称为“波导”）制成。 激光腔的净色散可能是异常的。 这种与波导中的正自相位调制非线性结合的异常色散产生孤子形成，以缩短本发明激光器中的脉冲持续时间。 相反，也可以使用具有负自相位调制非线性的正常色散波导。

    High-repetition-rate guided-mode femtosecond laser
    7.
    发明授权
    High-repetition-rate guided-mode femtosecond laser 有权
    高重复率引导模式飞秒激光

    公开(公告)号：US08194709B2

    公开(公告)日：2012-06-05

    申请号：US12475674

    申请日：2009-06-01

    申请人： Franz X. Kaertner ,  Hyunil Byun ,  Jian Chen ,  Erich P. Ippen ,  Dominik Pudo

    发明人： Franz X. Kaertner ,  Hyunil Byun ,  Jian Chen ,  Erich P. Ippen ,  Dominik Pudo

    IPC分类号： H01S3/10

    CPC分类号： H01S3/1115 ,  H01S3/0632 ,  H01S3/067 ,  H01S3/06725 ,  H01S3/06741 ,  H01S3/06791 ,  H01S3/2308 ,  H01S2301/085

    摘要： Femtosecond pulse trains in waveguide lasers with high fundamental repetition rates are achieved by exploiting the nonlinearity in the waveguide. Components of the apparatus include an optical resonator, a saturable absorber for starting and stabilizing mode-locking, and a gain element. Part of the laser cavity or the entire laser cavity is made of waveguide or fiber (collectively called “waveguide” herein). The net dispersion of the laser cavity can be anomalous. This anomalous dispersion in combination with the positive self-phase modulation nonlinearity in the waveguide creates soliton formation to shorten the pulse duration in the invented lasers. Conversely, a normal dispersive waveguide with negative self-phase modulation nonlinearity can also be used.

    摘要翻译： 通过利用波导中的非线性来实现具有高基波重复率的波导激光器中的飞秒脉冲串。 该装置的组件包括光谐振器，用于启动和稳定锁模的饱和吸收器和增益元件。 激光腔或整个激光腔的一部分由波导或光纤（这里统称为“波导”）制成。 激光腔的净色散可能是异常的。 这种与波导中的正自相位调制非线性结合的异常色散产生孤子形成，以缩短本发明激光器中的脉冲持续时间。 相反，也可以使用具有负自相位调制非线性的正常色散波导。

    Double-chirped mirror systems and methods
    9.
    发明授权
    Double-chirped mirror systems and methods 失效
    双啁啾镜系统和方法

    公开(公告)号：US06590925B1

    公开(公告)日：2003-07-08

    申请号：US09630293

    申请日：2000-08-01

    申请人： Franz X. Kaertner ,  Erich P. Ippen ,  Uwe Morgner ,  James G. Fujimoto

    发明人： Franz X. Kaertner ,  Erich P. Ippen ,  Uwe Morgner ,  James G. Fujimoto

    IPC分类号： H01S308

    CPC分类号： H01S3/0057

    摘要： A mirror system for use in generating a short duration laser pulse is disclosed. The system includes first and second double-chirped mirrors disposed along an optical path within a cavity, where the second double-chirped mirror includes an additional phase-shifting layer as compared to the first double-chirped mirror. The additional phase-shifting layer causes the mirror system during use to produce a laser pulse that is characterized by oscillations in group delay substantially reduced in amplitude in comparison to oscillations in group delay for a pulse produced by the same system without the additional phase-shifting layer.

    摘要翻译： 公开了一种用于产生短时激光脉冲的镜系统。 该系统包括沿着空腔内的光路设置的第一和第二双啁啾反射镜，其中与第一双啁啾反射镜相比，第二双啁啾反射镜包括附加的相移层。 附加的移相层在使用过程中使镜系统产生激光脉冲，其特征在于与同一系统产生的脉冲的组延迟的振荡相比，组延迟中的振荡明显减小，而没有附加的相移 层。

    Polarization-stabilized all-optical switch
    10.
    发明授权
    Polarization-stabilized all-optical switch 有权
    极化稳定的全光开关

    公开(公告)号：US06937782B2

    公开(公告)日：2005-08-30

    申请号：US10420501

    申请日：2003-04-22

    申请人： Bryan S. Robinson ,  Shelby J. Savage ,  Scott A. Hamilton ,  Erich P. Ippen

    发明人： Bryan S. Robinson ,  Shelby J. Savage ,  Scott A. Hamilton ,  Erich P. Ippen

    IPC分类号： G02F1/35 ,  H04J14/06 ,  H04J14/08 ,  H04Q11/00 ,  G02B6/26

    CPC分类号： H04Q11/0005 ,  G02F1/3515 ,  G02F1/3517 ,  H04J14/06 ,  H04J14/08 ,  H04Q2011/0035 ,  H04Q2011/0041

    摘要： Described is an all-optical switch that is significantly insensitive to polarization instabilities. The optical switch can be configured as an ultrafast logic gate, a switch for ultrafast communication systems or a key component of an all-optical regenerator. Performance is independent of the statistical characteristics of the data controlling the switch. The switch includes a birefringent optical channel in communication with one end of a nonlinear optical channel through a coupler and a polarization rotation mirror in communication with the other end of the nonlinear channel. An optical data pulse for controlling the switching function is provided to one port of the coupler.

    摘要翻译： 描述了对偏振不稳定性显着不敏感的全光开关。 光开关可以被配置为超快逻辑门，用于超快通信系统的开关或全光再生器的关键部件。 性能独立于控制交换机数据的统计特性。 开关包括通过耦合器与非线性光通道的一端通信的双折射光通道和与非线性通道的另一端通信的偏振旋转镜。 用于控制切换功能的光学数据脉冲被提供给耦合器的一个端口。