公开(公告)号：US20130259071A1

公开(公告)日：2013-10-03

申请号：US13820315

申请日：2011-08-29

申请人： Sébastien Blais-Ouellette

发明人： Sébastien Blais-Ouellette

IPC分类号： H01S3/1055

CPC分类号： H01S3/1055 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2201/17 ,  H01S3/06704 ,  H01S3/06741 ,  H01S3/06791 ,  H01S3/08009 ,  H01S3/108

摘要： A broadband optical accumulator and tunable narrowband optical source use a microstructured optical fiber into which optical energy is coupled at a first wavelength. The input optical energy is spectrally broadened as it propagates through the fiber, and the output signal is directed to a wavelength separator such as a Bragg grating. A narrowband portion of the output signal is redirected by the grating, while the remainder is reinjected into the fiber. Adjustment of the output wavelength band may be accomplished by changing the incidence angle of the output signal by pivoting the grating. The grating may be located in a housing and surrounded by index matching fluid, and the narrowband portion of the output signal isolated by the grating may be redirected to an output location by a reflector that moves with pivoting of the grating.

摘要翻译： 宽带光学累加器和可调谐窄带光源使用其中光能以第一波长耦合的微结构光纤。 输入光能在其通过光纤传播时被光谱扩展，并且输出信号被引导到诸如布拉格光栅之类的波长分离器。 输出信号的窄带部分由光栅重定向，而剩余部分被重新注入到光纤中。 输出波长带的调整可以通过使光栅转动来改变输出信号的入射角来实现。 光栅可以位于壳体中并由折射率匹配流体包围，并且由光栅隔离的输出信号的窄带部分可以通过随着光栅的转动而移动的反射器被重定向到输出位置。

公开(公告)号：US20100328661A1

公开(公告)日：2010-12-30

申请号：US12918376

申请日：2009-02-20

申请人： Sébastien Blais-Ouellette ,  Daniel Gagnon ,  Simon Lessard

发明人： Sébastien Blais-Ouellette ,  Daniel Gagnon ,  Simon Lessard

IPC分类号： G01J3/28

CPC分类号： G01N21/718 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0294 ,  G01J3/18 ,  G01J3/443

摘要： A laser induced breakdown spectroscopy (LIBS) system uses discrete optical filters for isolated predetermined spectral components from plasma light created by ablation of a sample. Independent detection elements may be used for detecting the magnitude for each spectral component. A first spectral component may include a characteristic wavelength of the sample, while a second spectral component may be a portion of a background continuum. The filters may include volume Bragg gratings and the detectors may be photodiodes. A detector that detects plasma light remaining after the isolation of the predetermined spectral components may be used together with a signal acquisition controller to precisely control the initiation and termination of signal acquisition from each of the detection elements. The system may also have optics including a collimating lens through which passes both the initial plasma light and the isolated spectral components.

摘要翻译： 激光诱导击穿光谱（LIBS）系统使用离散光学滤波器用于通过样品消融产生的等离子体光的隔离的预定光谱分量。 独立检测元件可用于检测每个光谱分量的幅度。 第一光谱分量可以包括样本的特征波长，而第二光谱分量可以是背景连续谱的一部分。 滤波器可以包括体积布拉格光栅，并且检测器可以是光电二极管。 检测器在检测到隔离预定频谱分量之后剩余的等离子体光可以与信号采集控制器一起使用，以精确地控制从每个检测元件开始和终止信号采集。 该系统还可以具有包括准直透镜的光学器件，通过该准直透镜通过初始等离子体光和隔离的光谱分量。

公开(公告)号：US20100110515A1

公开(公告)日：2010-05-06

申请号：US12529857

申请日：2008-03-07

申请人： Sébastien Blais-Ouellette ,  Daniel Gagnon ,  Jean-François Moquin ,  Marc Verhaegen

发明人： Sébastien Blais-Ouellette ,  Daniel Gagnon ,  Jean-François Moquin ,  Marc Verhaegen

IPC分类号： G02B5/32

CPC分类号： G02B5/32 ,  G02B5/203 ,  G03H1/0005 ,  G03H1/0248 ,  G03H2001/261

摘要： A notch filter system, where multiple filter passes of a light signal may be effected for removing a target spectral component from the light signal, is provided. Advantageously, the notch filter system may be tunable. A cascade notch filter system is provided which includes multiple notch filters arranged in a cascade, each of the filters having spectral filtering characteristics and being disposed in the path of the light signal at an appropriate filter angle so that the target spectral component is filtered out of the light signal as the light signal passes therethrough. A multipass notch filter system is provided which includes a notch filter having spectral filtering characteristics, and an optical assembly for directing the light signal for multiple filter passes through the filter at an appropriate angle, so that the target spectral component is filtered out of the light signal as the light signal passes through the filter.

摘要翻译： 提供了一种陷波滤波器系统，其中可以实现光信号的多个滤波器通过以从光信号中去除目标光谱分量。 有利地，陷波滤波器系统可以是可调谐的。 提供了一种级联陷波滤波器系统，其包括以级联方式布置的多个陷波滤波器，每个滤波器具有频谱滤波特性，并以适当的滤波器角度设置在光信号的路径中，使得目标频谱分量被滤出 作为光信号的光信号通过。 提供了一种多通道陷波滤波器系统，其包括具有频谱滤波特性的陷波滤波器，以及用于引导多个滤波器的光信号以适当角度通过滤波器的光学组件，使得目标谱分量被滤出光 信号通过滤光片。