公开(公告)号：US20070153291A1

公开(公告)日：2007-07-05

申请号：US11322613

申请日：2005-12-30

Applicant: Christophe Dorrer

Inventor： Christophe Dorrer

IPC: G01B9/02

CPC classification number: G01J11/00 ,  G01J9/04

Abstract: Time magnification and heterodyning are combined to allow the single-shot characterization of the electric field of optical waveforms. The electric field of the source under test is obtained by Fourier processing of the magnified temporal intensity of the source heterodyned with a monochromatic source. An experimental implementation of this technique is characterized and used to measure various optical signals.

Abstract translation: 时间放大和外差被组合以允许光学波形的电场的单次表征。 通过傅立叶处理由单色源外置的源的放大时间强度获得被测源的电场。 该技术的实验实现被表征并用于测量各种光信号。

公开(公告)号：US07221451B2

公开(公告)日：2007-05-22

申请号：US10926351

申请日：2004-08-26

Applicant: Hideyuki Ohtake ,  Koichiro Tanaka ,  Masaya Nagai ,  Junpei Yamashita ,  Kumiko Yamashita

Inventor： Hideyuki Ohtake ,  Koichiro Tanaka ,  Masaya Nagai ,  Junpei Yamashita ,  Kumiko Yamashita

IPC: G01J3/28

CPC classification number: G01J3/12 ,  G01J3/4338 ,  G01J11/00 ,  G01N21/3581 ,  G01N21/3586

Abstract: A method for measuring a spectrum of a terahertz pulse includes generating a terahertz pulse using an ultrashort pulsed pumping light, generating a white light pulse using an ultrashort pulsed probe light, stretching and chirping the white light pulse modulating the chirped white light pulse such that the terahertz pulse and the chirped white light pulse irradiate into an electro-optic crystal synchronously, so that the chirped white light pulse is modulated by an electric field signal induced at the electro-optic crystal irradiated by the terahertz pulse, detecting a spectrum of chirped white light pulse modulated at the electro-optic modulating step by a multi-channeled detector, analyzing an electric field of the teraherz pulse irradiated to the electro-optic crystal from the spectrum of the chirped white light pulse detected by the multi-channeled spectrum detecting step, and transforming the analyzed electric field signal into a frequency spectrum of the terahertz pulse.

Abstract translation: 用于测量太赫兹脉冲的频谱的方法包括使用超短脉冲泵浦光产生太赫脉冲，使用超短脉冲探测光产生白光脉冲，拉伸和啁啾调制啁啾的白光脉冲的白光脉冲，使得 啁啾脉冲和啁啾的白光脉冲同步地照射到电光晶体中，使得啁啾的白光脉冲被在由太赫兹脉冲辐射的电光晶体处感应的电场信号调制，检测啁啾的白色光谱 通过多通道检测器在电光调制步骤中调制光脉冲，从由多通道频谱检测步骤检测的啁啾白光脉冲的频谱分析辐射到电光晶体的太赫兹脉冲的电场 并将分析的电场信号变换为太赫兹脉冲的频谱。

公开(公告)号：US20070071060A1

公开(公告)日：2007-03-29

申请号：US11492248

申请日：2006-07-25

Applicant: Ronald Holzwarth ,  Michael Mel

Inventor： Ronald Holzwarth ,  Michael Mel

IPC: H01S3/13 ,  H01S3/08

CPC classification number: G01J11/00

Abstract: A description is given of an optical structure (100), in particular for determining and stabilizing the relative phase of short pulses, which contains a broadening device (6) for broadening the frequency spectrum of pulses of electromagnetic radiation, and a frequency multiplier device (8) for multiplying at least one frequency component of the pulses, wherein a focusing lens optic (7) is arranged between the broadening device and the frequency multiplier device, which focusing lens optic can be used to focus the pulses into the frequency multiplier device (8). Uses of this optical structure are also described.

Abstract translation: 给出了光学结构（100）的描述，特别是用于确定和稳定短脉冲的相对相位，其包含用于使电磁辐射的脉冲的频谱变宽的扩展装置（6）和倍频装置（ 8），用于乘以脉冲的至少一个频率分量，其中聚焦透镜光学器件（7）被布置在倍增装置和倍频装置之间，聚焦透镜光学元件可用于将脉冲聚焦到倍频装置（ 8）。 还描述了该光学结构的用途。

公开(公告)号：US20070027689A1

公开(公告)日：2007-02-01

申请号：US11396931

申请日：2006-04-03

Applicant: Aydogan Ozcan ,  Michel Digonnet ,  Gordon Kino

Inventor： Aydogan Ozcan ,  Michel Digonnet ,  Gordon Kino

IPC: G10L13/00

CPC classification number: G01J11/00 ,  G04F13/02

Abstract: A method determines a transient response of a sample. The method includes providing a measured magnitude of the Fourier transform of a complex electric field temporal profile of a pulse sequence comprising a probe pulse and a dummy pulse, wherein the probe pulse is indicative of the transient response of the sample. The method further includes providing an estimated phase term of the Fourier transform of the complex electric field temporal profile of the pulse sequence. The method further includes multiplying the measured magnitude and the estimated phase term to generate an estimated Fourier transform of the complex electric field temporal profile of the pulse sequence. The method further includes calculating an inverse Fourier transform of the estimated Fourier transform, wherein the inverse Fourier transform is a function of time. The method further includes calculating an estimated complex electric field temporal profile of the pulse sequence by applying at least one constraint to the inverse Fourier transform.

Abstract translation: 一种方法确定样品的瞬态响应。 该方法包括提供包括探针脉冲和伪脉冲的脉冲序列的复电场时间分布的傅立叶变换的测量幅度，其中探针脉冲表示样品的瞬态响应。 该方法还包括提供脉冲序列的复电场时间分布的傅立叶变换的估计相位项。 该方法还包括乘以测量的幅度和估计的相位项以产生脉冲序列的复电场时间曲线的估计傅立叶变换。 该方法还包括计算傅立叶逆变换的傅立叶逆变换，其中逆傅里叶变换是时间的函数。 该方法还包括通过对傅里叶逆变换应用至少一个约束来计算脉冲序列的估计复电场时间分布。

公开(公告)号：US20060132783A1

公开(公告)日：2006-06-22

申请号：US11355614

申请日：2006-02-16

Applicant: Aydogan Ozcan ,  Michel Digonnet ,  Gordon Kino

Inventor： Aydogan Ozcan ,  Michel Digonnet ,  Gordon Kino

IPC: G01N21/00

CPC classification number: G01N21/21 ,  G01J11/00 ,  G01N21/4788 ,  G01N21/636 ,  G01N2021/4723 ,  G01N2021/4735

Abstract: A method for measuring a physical function forms a symmetric composite function by combining the physical function with a reference function. The method obtains a Fourier transform of the symmetric composite function. The method calculates an inverse Fourier transform of the obtained Fourier transform, wherein the calculated inverse Fourier transform provides information regarding the physical function. The physical function can be a nonlinearity profile of a sample with at least one sample surface. The physical function can alternatively by a sample temporal waveform of a sample optical pulse.

公开(公告)号：US20060110166A1

公开(公告)日：2006-05-25

申请号：US10994589

申请日：2004-11-19

Applicant: John Allen

Inventor： John Allen

IPC: H04B10/04

CPC classification number: G01J11/00

Abstract: Detecting a pulse of a signal includes receiving the signal and a light beam. The signal drives a spatial light modulator to modulate the light beam, where the complex amplitude of the modulated light beam is proportional to the signal current. The modulated light beam passes through an optical system and is detected by an optical detector array. A processor identifies a portion of the signal comprising the pulse.

Abstract translation: 检测信号的脉冲包括接收信号和光束。 信号驱动空间光调制器来调制光束，其中调制光束的复振幅与信号电流成比例。 被调制的光束通过光学系统并被光学检测器阵列检测。 处理器识别包括脉冲的信号的一部分。

公开(公告)号：US20060088259A1

公开(公告)日：2006-04-27

申请号：US11172620

申请日：2005-06-30

Applicant: Andrew Weiner

Inventor： Andrew Weiner

IPC: G02B6/00

CPC classification number: G01J11/00

Abstract: A short-pulse measurement and detection apparatus utilizing an aperiodic non-linear quasi-phase matched (A-QPM) material. The bandwidth of the A-QPM non-linear material is such that an interaction between a first signal and a second signal occurs, facilitating measurements of signal properties by techniques such as intensity auto-correlation, intensity cross-correlation, and pulse sampling.

公开(公告)号：US20050226287A1

公开(公告)日：2005-10-13

申请号：US10813269

申请日：2004-03-31

Applicant: Lawrence Shah ,  James Bovatsek ,  Alan Arai ,  Tadashi Yamamoto ,  Rajesh Patel ,  Donald Harter

Inventor： Lawrence Shah ,  James Bovatsek ,  Alan Arai ,  Tadashi Yamamoto ,  Rajesh Patel ,  Donald Harter

IPC: G01J11/00 ,  H01S3/00 ,  H01S3/067 ,  H01S3/10 ,  H01S3/102 ,  H01S3/109 ,  H01S3/13 ,  H01S3/16 ,  H01S3/23

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：US06873418B1

公开(公告)日：2005-03-29

申请号：US10676224

申请日：2003-09-30

Applicant: James K. Howey ,  Rajasekhar M. Rao

Inventor： James K. Howey ,  Rajasekhar M. Rao

IPC: G01B9/02 ,  G01J11/00 ,  G02B7/02 ,  G02B7/182 ,  H01S3/13

CPC classification number: G02B7/1825 ,  G01J11/00 ,  G02B7/021

Abstract: A wavemeter for a high repetition rate gas discharge laser having an output laser bean comprising a pulsed output of greater than or equal to 15 mJ per pulse, sub-nanometer bandwidth tuning range pulses having a femptometer bandwidth precision and tens of femptometers bandwidth accuracy range, for measuring bandwidth on a pulse to pulse basis at pulse repetition rates of 4000 Hz and above, is disclosed which may comprise an adjustable optic mounting containing an optic element having an assigned vertical optical plane in the wavemeter optical layout and comprising: a mounting dowel pin positioned on a platform holding the components of the wavemeter; a dowel receiving opening on the adjustable mirror mounting a tangent to which is in the assigned vertical optical plane. The adjustable optic mounting may contain a tilt mechanism incorporated into the adjustable optic mounting enabling tilting the optic element about an axis in a plane parallel to a platform holding components of the wavemeter. The mounting may also have an optic receiving recess indexed to the size of the optic element. The optic element may be retained by at least one spring clip and may be a flat rectangular mirror or a circular optic, e.g., a mirror or a lens. The mounting may also have an optic mounting frame containing an optical element; a slit assembly containing a microslit adapted to selectively pass a slit of the optical output of the optical diffusion element to a succeeding optical element, moveably mounted to the optic mounting frame; a microslit position adjustment mechanism moving the slit assembly from a retracted position exposing the optic diffusion element for purposes of alignment to a down position with the slit aligned and moving the microslit into alignment.

Abstract translation: 一种用于具有输出激光束的高重复率气体放电激光器的波长计，其包括脉冲输出大于或等于15mJ /脉冲，亚纳米带宽调谐范围脉冲具有飞行器带宽精度和数十个飞行器带宽精度范围， 用于以4000Hz及以上的脉冲重复频率在脉冲到脉冲基础上测量带宽，其可以包括可调光学安装件，其包含在波长计光学布局中具有指定的垂直光学平面的光学元件，并且包括：安装销钉 位于保持波长计的组件的平台上; 可调节镜上的定位销接收开口安装在指定的垂直光学平面中的切线。 可调节光学安装件可以包含结合到可调节光学安装件中的倾斜机构，使得可以在与保持波长计的部件的平台平行的平面中的轴线处倾斜光学元件。 安装件还可以具有与光学元件的尺寸分度的光学接收凹部。 光学元件可以由至少一个弹簧夹保持，并且可以是平面矩形镜或圆形光学器件，例如镜子或透镜。 安装件还可以具有包含光学元件的光学安装框架; 狭缝组件，其包含适于选择性地将光扩散元件的光输出的狭缝传递到可移动地安装到光学安装框架的后续光学元件的微型灯; 微型位置调节机构使狭缝组件从缩回位置移动，该缩回位置暴露光学扩散元件，以便对准到下部位置，同时狭缝对准并将微光线移动到对准位置。

公开(公告)号：US20050024645A1

公开(公告)日：2005-02-03

申请号：US10629379

申请日：2003-07-28

Applicant: Christophe Dorrer

Inventor： Christophe Dorrer

IPC: G01B9/02 ,  G01J3/12 ,  G01J11/00 ,  G01M11/00

CPC classification number: G01M11/333 ,  G01J3/12 ,  G01J11/00 ,  G01M11/332 ,  G01M11/338

Abstract: A method and apparatus for measuring the group delay of a device are provided. The temporal and spectral intensities of optical pulses are measured after propagation in the device and the group delay of the device is determined using the measured intensities.

Abstract translation: 提供了一种用于测量设备的组延迟的方法和设备。 光脉冲的时间和光谱强度在器件中传播后测量，并且使用测量的强度来确定器件的群延迟。