公开(公告)号：US09182284B2

公开(公告)日：2015-11-10

申请号：US13490862

申请日：2012-06-07

Applicant: Cristian Angelo Manzoni ,  Daniele Brida ,  Giulio Nicola Felice Cerullo

Inventor： Cristian Angelo Manzoni ,  Daniele Brida ,  Giulio Nicola Felice Cerullo

IPC: G01J3/45 ,  G01J3/28 ,  G01J3/433 ,  G01J3/453 ,  G01J11/00 ,  H01S3/00

CPC classification number: G01J3/2889 ,  G01J3/433 ,  G01J3/453 ,  G01J11/00 ,  H01S3/005

Abstract: A phase-locked delay device, including: an input port configured to receive an input electromagnetic radiation pulse; said input pulse being to be propagated along a propagation direction and having a first linear polarization different from both a first direction, which is orthogonal to the propagation direction, and a second direction, which is orthogonal to the first direction and the propagation direction; an adjustable Babinet-Soleil module optically coupled to said input port, having a first polarization direction parallel to said first direction. The adjustable Babinet-Soleil module is structured to: provide from the input pulse a first pulse polarized along the first direction and a second pulse collinear to said first pulse and polarized along the second direction, and introduce an adjustable group delay between the first pulse and the second pulse ranging from a minim value ΔTm and a maximum value ΔTM; the maximum value ΔTM being a value greater than 10 fs.

Abstract translation: 一种锁相延迟装置，包括：被配置为接收输入电磁辐射脉冲的输入端口; 所述输入脉冲沿着传播方向传播，并且具有与传播方向正交的第一方向和与第一方向和传播方向正交的第二方向不同的第一线性偏振; 光耦合到所述输入端口的可调节的Babinet-Soleil模块具有平行于所述第一方向的第一偏振方向。 可调节的Babinet-Soleil模块被构造成：从输入脉冲提供沿着第一方向偏振的第一脉冲和与所述第一脉冲共线的第二脉冲并沿着第二方向极化，并且在第一脉冲和 从最小值＆Dgr; Tm和最大值＆Dgr; TM的范围的第二脉冲; 最大值＆Dgr; TM是大于10fs的值。

公开(公告)号：US09164144B2

公开(公告)日：2015-10-20

申请号：US13727959

申请日：2012-12-27

Applicant: General Electric Company

Inventor： Sergei Ivanovich Dolinsky

IPC: G01R15/24 ,  G01R31/28 ,  G01T1/20 ,  G01T1/208 ,  G01J11/00 ,  G01J1/42

CPC classification number: G01R31/2837 ,  G01J1/08 ,  G01J1/4228 ,  G01J11/00 ,  G01T1/2018 ,  G01T1/208

Abstract: Exemplary embodiments are directed to characterizing a solid state photomultiplier (SSPM). The SSPM can be exposed to a light pulse that triggers a plurality of microcells of the SSPM and an output signal of the SSPM generated in response to the light pulse can be processed. The output signal of the SSPM can be proportional to a gain of the SSPM and a quantity of microcells in the SSPM and a value of an electrical parameter of the SSPM can be determined based on a relationship between the output signal of the SSPM and an over voltage applied to the SSPM.

Abstract translation: 示例性实施例涉及表征固态光电倍增管（SSPM）。 SSPM可以暴露于触发SSPM的多个微单元的光脉冲，并且可以处理响应于光脉冲而产生的SSPM的输出信号。 SSPM的输出信号可以与SSPM的增益成比例，并且SSPM中的微小区的数量和SSPM的电参数的值可以基于SSPM的输出信号与上一个之间的关系来确定 施加到SSPM的电压。

公开(公告)号：US20150292952A1

公开(公告)日：2015-10-15

申请号：US14435903

申请日：2013-10-22

Applicant: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES

Inventor： Jérôme Dubertrand

IPC: G01J11/00

CPC classification number: G01J11/00

Abstract: Device for processing an optical pulse to measure the temporal contrast of this pulse, and system for measuring the contrast using the device. This device comprises: a device (2) receiving the pulse and providing the peak and pedestal of the pulse; a device (4) to create a temporal shift between the peak and the pedestal; a device (6) to attenuate the peak such that its level is of the same order of magnitude as the level of the pedestal; and a device (8) to multiplex the peak and the pedestal. The contrast is then equal to the ratio of the peak level to the pedestal level, these levels being corrected by the attenuations applied to them in the processing device.

Abstract translation: 用于处理光脉冲以测量该脉冲的时间对比度的装置，以及使用该装置测量对比度的系统。 该装置包括：接收脉冲并提供脉冲的峰值和基准的装置（2）; 在所述峰和所述基座之间产生时间偏移的装置（4）; 用于衰减峰值使得其电平与基座的电平相同数量级的装置（6）; 以及用于复用峰值和基座的装置（8）。 然后，对比度等于峰值电平与基座电平的比值，这些电平通过在处理装置中施加到它们的衰减来校正。

公开(公告)号：US09147989B2

公开(公告)日：2015-09-29

申请号：US14100912

申请日：2013-12-09

Applicant: IMRA AMERICA, INC.

Inventor： Lawrence Shah ,  James M. Bovatsek ,  Alan Y. Arai ,  Tadashi Yamamoto ,  Rajesh S. Patel ,  Donald J. Harter

IPC: H01S3/30 ,  H01S3/00 ,  G01J11/00 ,  H01S3/102 ,  H01S3/067 ,  H01S3/109 ,  H01S3/13 ,  H01S3/16

CPC classification number: H01S3/10038 ,  G01J11/00 ,  H01S3/0014 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06754 ,  H01S3/10023 ,  H01S3/10061 ,  H01S3/102 ,  H01S3/1024 ,  H01S3/108 ,  H01S3/109 ,  H01S3/1305 ,  H01S3/1618

Abstract: A femtosecond laser based laser processing system having a femtosecond laser, frequency conversion optics, beam manipulation optics, target motion control, processing chamber, diagnostic systems and system control modules. The femtosecond laser based laser processing system allows for the utilization of the unique heat control in micromachining, and the system has greater output beam stability, continuously variable repetition rate and unique temporal beam shaping capabilities.

Abstract translation: 飞秒激光激光处理系统，具有飞秒激光，变频光学，光束操纵光学，目标运动控制，处理室，诊断系统和系统控制模块。 基于飞秒激光的激光加工系统允许在微加工中利用独特的热控制，并且该系统具有更大的输出光束稳定性，连续可变的重复率和独特的时间波束整形能力。

公开(公告)号：US20150253199A1

公开(公告)日：2015-09-10

申请号：US14431736

申请日：2013-09-24

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： Bernd Sartorius ,  Roman Dietz ,  Helmut Roehle

IPC: G01J11/00

CPC classification number: G01J11/00 ,  H01S3/0014 ,  H01S3/2383

Abstract: The invention relates to a method for determining the relative temporal position of electromagnetic pulses. Said method having the steps generating a sequence of first electromagnetic pulses, generating a sequence of second electromagnetic pulses, overlaying at least a part of the first and the second pulses in a saturable absorber, detecting the second pulses that have passed through the saturable absorber by means of a detector in such a manner that the second pulses, but not the first pulses that have passed through the saturable absorber, are detected, and determining the temporal position of the first pulses relative to the temporal position of the second pulses with the aid of a signal from the detector which is generated when the second pulses that have passed through the saturable absorber are received.

Abstract translation: 本发明涉及一种用于确定电磁脉冲的相对时间位置的方法。 所述方法具有生成第一电磁脉冲序列的步骤，产生第二电磁脉冲序列，在可饱和吸收器中覆盖第一和第二脉冲的至少一部分，检测通过可饱和吸收器的第二脉冲， 检测器的装置，使得检测到第二脉冲而不是已经通过可饱和吸收体的第一脉冲，并且通过辅助来确定第一脉冲相对于第二脉冲的时间位置的时间位置 来自检测器的信号，其在接收到通过可饱和吸收器的第二脉冲时产生。

公开(公告)号：US20150180192A1

公开(公告)日：2015-06-25

申请号：US14638883

申请日：2015-03-04

Applicant: GIGAPHOTON INC.

Inventor： Hiroaki TSUSHIMA ,  Osamu WAKABAYASHI ,  Takahito KUMAZAKI ,  Takashi MATSUNAGA

IPC: H01S3/00 ,  H01S3/134 ,  G01J11/00 ,  H01S3/034 ,  H01S3/038 ,  H01S3/225

CPC classification number: H01S3/0014 ,  G01J1/4257 ,  G01J11/00 ,  H01S3/005 ,  H01S3/034 ,  H01S3/038 ,  H01S3/08009 ,  H01S3/0971 ,  H01S3/10069 ,  H01S3/134 ,  H01S3/225 ,  H01S3/2251 ,  H01S3/2256 ,  H01S3/2308

Abstract: A laser apparatus may comprise: a laser chamber configured to include a laser gain medium; a pair of electrodes disposed in the laser chamber; an energy detector configured to measure pulse energy of laser beams outputted by discharging between the pair of the electrodes; an optical element disposed on a light path of the laser beams; and a controller configured to calculate an integration value of absorption energy at the optical element, and determine whether the integration value exceeds a lifetime integration value of the optical element based on the pulse energy of the laser beams.

Abstract translation: 激光装置可以包括：激光室，被配置为包括激光增益介质; 设置在激光室中的一对电极; 能量检测器，被配置为测量在所述一对电极之间通过放电而输出的激光束的脉冲能量; 设置在激光束的光路上的光学元件; 以及控制器，其被配置为计算所述光学元件处的吸收能的积分值，并且基于所述激光束的脉冲能量来确定所述积分值是否超过所述光学元件的寿命积分值。

公开(公告)号：US20150070705A1

公开(公告)日：2015-03-12

申请号：US14391461

申请日：2012-07-27

Applicant: Dong Eon Kim ,  Jung Kwuen An

Inventor： Dong Eon Kim ,  Jung Kwuen An

IPC: G01J11/00

CPC classification number: G01J11/00 ,  G04F13/026

Abstract: Disclosed is an autocorrelator for generating an autocorrelation signal for an ultrashort pulse to measure the ultrashort pulse. The autocorrelator comprises: a light source unit for generating an optical pulse; a double wedge interferometer in which a first wedge and a second wedge serving as a wedge-shaped optical medium are arranged such that facing surfaces of the first and second wedges are parallel to each other, so as to separate the optical pulse provided by the light source unit to generate two optical pulses; a harmonic light medium for receiving the generated two optical pulses to generate second harmonic light; and a measurement unit for detecting the second harmonic light to generate an autocorrelation signal. Thus, the time width of an ultrashort pulse can be measured by an interferometer using only two wedge-shaped optical components.

Abstract translation: 公开了一种用于产生超短脉冲自相关信号以测量超短脉冲的自相关器。 该自相关器包括：用于产生光脉冲的光源单元; 双楔形干涉仪，其中第一楔形件和用作楔形光学介质的第二楔形件布置成使得第一和第二楔形物的相对表面彼此平行，以便分离由光提供的光脉冲 源单元产生两个光脉冲; 用于接收产生的两个光脉冲以产生二次谐波光的谐波光介质; 以及用于检测所述二次谐波光以产生自相关信号的测量单元。 因此，可以通过仅使用两个楔形光学部件的干涉仪来测量超短脉冲的时间宽度。

公开(公告)号：US08886037B2

公开(公告)日：2014-11-11

申请号：US13254624

申请日：2010-03-02

Applicant: Tsuyoshi Konishi ,  Takuya Kato ,  Hiroomi Goto

Inventor： Tsuyoshi Konishi ,  Takuya Kato ,  Hiroomi Goto

IPC: H04B10/08 ,  G01J3/02 ,  G01J11/00

CPC classification number: G01J11/00 ,  G01J3/02 ,  G01J3/0213 ,  G01J3/0218 ,  G01J3/0245

Abstract: Provided is a waveform reconstruction device capable of easily reconstructing an accurate time waveform of an optical signal without using an ultrafast time gate or a reference light source. A waveform reconstruction device (140) includes: a phase spectrum calculation unit (143) which (i) calculates a power spectrum of an output optical signal for each of a plurality of intensities of an input optical signal, when a phase spectrum of the input optical signal having the plurality of intensities is assumed to have a given phase spectrum, by simulating, using a parameter related to self-phase modulation of an optical fiber, propagation of the input optical signal through the optical fiber, and (ii) calculates, as the phase spectrum of the input optical signal, the given phase spectrum when a difference value between the calculated power spectrum and a measured power spectrum is equal to or less than a threshold value; and a waveform reconstruction unit (144) which reconstructs the time waveform of the input optical signal by performing frequency-time transform on the calculated phase spectrum and the power spectrum of the input optical signal.

Abstract translation: 提供一种波形重构装置，能够容易地重构光信号的精确时间波形而不使用超快时间门或参考光源。 波形重建装置（140）包括：相位谱计算单元（143），其对于输入光信号的多个强度中的每一个计算输出光信号的功率谱，当输入的相位谱 假设具有多个强度的光信号具有给定的相位频谱，通过使用与光纤的自相位调制有关的参数，通过光纤传播输入光信号，并且（ii） 作为输入光信号的相位频谱，当所计算的功率谱与测量的功率谱之间的差值等于或小于阈值时，给定的相位频谱; 以及波形重构单元（144），通过对计算出的相位频谱和输入光信号的功率谱进行频率 - 时间变换来重构输入光信号的时间波形。

公开(公告)号：US20140023099A1

公开(公告)日：2014-01-23

申请号：US14009341

申请日：2012-03-30

Applicant: Gerhard Georg Paulus ,  Arthur Maxwell Sayler ,  Tim Rathje ,  Max Möller ,  Dominik Hoff

Inventor： Gerhard Georg Paulus ,  Arthur Maxwell Sayler ,  Tim Rathje ,  Max Möller ,  Dominik Hoff

IPC: G01J11/00

CPC classification number: G01J11/00

Abstract: The aim of the present disclosure is to enable a fast CE phase evaluation of the laser pulses, in particular in real time, including for multi-cycle pulses. Said aim is achieved by providing a polarization gating stage (8) for changing the laser pulses (7) to be evaluated in the phase and subsequent phase evaluation stage (15) for measuring the phase position of the changed laser pulses. The descriptions in the present disclosure can be used for example in laser technology for producing and monitoring single-cycle pulses.

Abstract translation: 本公开的目的是使得能够对激光脉冲进行快速的CE相位评估，特别是实时的，包括用于多周期脉冲。 所述目的通过提供用于改变在相位和随后的相位评估阶段（15）中评估的激光脉冲（7）的偏振门控级（8），用于测量改变的激光脉冲的相位位置。 本公开中的描述可以用于例如用于生成和监视单周期脉冲的激光技术。

公开(公告)号：US20090059205A1

公开(公告)日：2009-03-05

申请号：US12193121

申请日：2008-08-18

Applicant: TAKEAKI ITSUJI

Inventor： TAKEAKI ITSUJI

IPC: G01J11/00

CPC classification number: G01N21/3581 ,  G01N21/3563 ,  G01N21/8422 ,  G01N21/9508

Abstract: To provide an apparatus capable obtaining a temporal waveform of terahertz waves transmitted through or reflected by a sample in a set region. A delay unit is configured to change a timing at which the detection unit detects terahertz waves transmitted through or reflected by a sample, which is originated from terahertz waves generated by a generation unit. A waveform obtaining unit is configured to obtain a temporal waveform of the transmitted terahertz waves which are obtained by using the delay unit. The delay unit, of which more than one may be used, is controlled so that the detection unit detects the transmitted terahertz waves in an area related to the temporal waveform set on the basis of information related to the sample that is pre-stored in the storage unit. Then, a temporal waveform of the transmitted terahertz waves in the area is obtained.

Abstract translation: 提供一种能够获得通过设定区域中的样本透射或反射的太赫兹波的时间波形的装置。 延迟单元被配置为改变检测单元检测到由由发生单元产生的太赫兹波产生的样本传输或反射的太赫兹波的定时。 波形获取单元被配置为获得通过使用延迟单元获得的发射的太赫兹波的时间波形。 控制其中可以使用多于一个的延迟单元被控制，使得检测单元基于与预先存储在该存储器中的样本相关的信息来检测与时间波形集相关的区域中的传输的太赫兹波 存储单元。 然后，获得该区域中发射的太赫兹波的时间波形。