公开(公告)号：US09869817B1

公开(公告)日：2018-01-16

申请号：US15371933

申请日：2016-12-07

申请人： Yves Painchaud ,  Alexandre D. Simard

发明人： Yves Painchaud ,  Alexandre D. Simard

IPC分类号： G02B6/26 ,  G02B6/28 ,  G01B9/02 ,  G02B6/125 ,  G02F1/01 ,  G02B6/12

CPC分类号： G02B6/2813 ,  G01B9/02097 ,  G02B6/125 ,  G02B2006/12159 ,  G02F1/011

摘要： An optical interferometer based on multi-mode interference (MMI) devices includes an input port, an output port, a first MMI device connected to the input port at an input face of the first MMI device, a second MMI device connected to the first output port at an output face of the second MMI device. In the optical interferometer, an output face of the first MMI device and an input face of the second MMI device are directly connected, the first MMI device includes a first and a second self-imaging points at an interface between the first MMI device and the second MMI device, and a propagation axis of the second MMI device is tilted with respect to a propagation axis of the first MMI device, causing a path length difference between an upper optical path via the first self-imaging point and a lower optical path via the second self-imaging point.

公开(公告)号：US09759864B2

公开(公告)日：2017-09-12

申请号：US15282965

申请日：2016-09-30

申请人： Yves Painchaud ,  Marie-Josée Picard ,  Ian Betty

发明人： Yves Painchaud ,  Marie-Josée Picard ,  Ian Betty

IPC分类号： G02B6/14 ,  G02B6/12 ,  G02B6/122 ,  G02B6/125 ,  G02B6/30 ,  G02B6/124

CPC分类号： G02B6/14 ,  G02B6/00 ,  G02B6/1228 ,  G02B6/124 ,  G02B6/125 ,  G02B6/305 ,  G02B2006/12152

摘要： A spot-size converter for coupling light between a first waveguide and a second waveguide extends along a longitudinal waveguiding axis and includes a transition region. The transition region includes a first part of waveguiding structure, which is coupled to the first waveguide, and a second part of waveguiding structure, which is coupled to the second waveguide. The second part of waveguiding structure includes high-index elements arranged in multiple vertically spaced rows and horizontally spaced columns, and extends along the longitudinal waveguiding axis at least partially over the first part of waveguiding structure so as to define a low-index region where the mode of the first waveguide progressively transforms into the mode of the second waveguide, thereby enabling light propagation via a mode of the combined system of the first and second parts of waveguiding structures.

公开(公告)号：US06941044B2

公开(公告)日：2005-09-06

申请号：US10232106

申请日：2002-08-28

申请人： Yves Painchaud ,  Richard LaChance ,  Sylviane Lelièvre

发明人： Yves Painchaud ,  Richard LaChance ,  Sylviane Lelièvre

IPC分类号： G02B6/02 ,  G02B6/34 ,  H04B10/18

CPC分类号： G02B6/29395 ,  G02B6/02085 ,  G02B6/29317 ,  G02B6/2932 ,  G02B6/29394 ,  H04B10/2519

摘要： A tunable optical structure and devices based thereon for the compensation of chromatic dispersion in a multi-channel light signal are provided. The optical structure includes a waveguide and a Bragg grating provided therein. The Bragg grating has a plurality of grating components, each associated with one or a few of the channels to be compensated. The period of each grating component is selected to allow compensation of chromatic dispersion experienced by this particular channel or these particular channels, thereby taking into account the wavelength-dependent dispersion slope of the light signal. Tuning means are also provided in order to adjust the dispersion of the grating components to the required values.

摘要翻译： 提供了一种可调光学结构及其基于用于补偿多通道光信号中色散的装置。 光学结构包括其中提供的波导和布拉格光栅。 布拉格光栅具有多个光栅分量，每个光栅分量与要补偿的一个或几个通道相关联。 选择每个光栅分量的周期以允许补偿由该特定通道或这些特定通道经历的色散，从而考虑到光信号的波长相关色散斜率。 还提供调谐装置以便将光栅部件的色散调整到所需的值。

公开(公告)号：US6130973A

公开(公告)日：2000-10-10

申请号：US48698

申请日：1998-03-26

申请人： Jocelyn Lauzon ,  Martin Guy ,  Yves Painchaud ,  Martin Pelletier

发明人： Jocelyn Lauzon ,  Martin Guy ,  Yves Painchaud ,  Martin Pelletier

IPC分类号： G02B6/34

CPC分类号： G02B6/02152 ,  G02B6/02085 ,  G02B6/02138

摘要： A method and an apparatus to photoinduce a grating or other type of modulated refractive index change in a photosensitive optical medium such as optical fiber. The resulting grating has a variable and controllable intensity profile and average value of the index change. The modulated refractive index change is photoimprinted in the medium in a series of writing steps, each comprising exposing a segment of the medium to a writing beam for a predetermined exposure time. To change the modulation intensity from step to step, the angle of incidence of the writing beam is dithered for an appropriate fraction of the exposure time at each step. This allows to control the amount of incident light on the medium for each step. If the exposure time is the same for each writing step, the average value of the index change may be kept constant avoiding undesired structure in the grating frequency response.

摘要翻译： 在诸如光纤的感光光学介质中光诱导光栅或其它类型的调制折射率变化的方法和装置。 所得到的光栅具有可变且可控的强度分布和折射率变化的平均值。 经调制的折射率变化在介质中以一系列写入步骤进行光印，每个步骤包括将介质的一段曝光到写入光束以达预定的曝光时间。 为了从步进到步骤改变调制强度，写入光束的入射角被抖动以在每个步骤的适当分数的曝光时间。 这允许在每个步骤中控制介质上入射光的量。 如果对于每个写入步骤的曝光时间相同，则可以保持索引变化的平均值，避免光栅频率响应中的不期望的结构。

公开(公告)号：US08619824B2

公开(公告)日：2013-12-31

申请号：US13225155

申请日：2011-09-02

申请人： Simon Ayotte ,  Michel Morin ,  Michel Poulin ,  Christine Latrasse ,  Yves Painchaud

发明人： Simon Ayotte ,  Michel Morin ,  Michel Poulin ,  Christine Latrasse ,  Yves Painchaud

IPC分类号： H01S3/10

CPC分类号： H01S5/0687 ,  H01S5/0078 ,  H01S5/0261 ,  H01S5/06256 ,  H01S5/0683 ,  H01S5/12 ,  H01S5/1215 ,  H01S5/4006

摘要： A low white frequency noise tunable semiconductor laser source is presented. The laser source includes a single-mode semiconductor laser assembly which generates a laser beam having a tunable frequency over a spectral range of interest. An optical filter is provided in the path of the laser beam. The optical filter has multiple spectral features distributed over the entire spectral range of interest. Each spectral feature has a narrow spectral range. A locking mechanism is further provided and is controllable for locking a spectral alignment between the frequency of the laser beam and any selected one of the spectral features of the optical filter.

摘要翻译： 提出了一种低白噪声可调谐半导体激光源。 激光源包括单模半导体激光器组件，其在感兴趣的光谱范围上产生具有可调谐频率的激光束。 在激光束的路径中设置滤光器。 光学滤波器具有分布在感兴趣的整个光谱范围上的多个光谱特征。 每个光谱特征具有窄的光谱范围。 进一步提供锁定机构并且可控制该锁定机构，用于锁定激光束的频率与光学滤波器的光谱特征中的任何选定的一个之间的光谱对准。

公开(公告)号：US08406621B2

公开(公告)日：2013-03-26

申请号：US12916137

申请日：2010-10-29

申请人： Yves Painchaud ,  Michel Poulin ,  Michel Morin

发明人： Yves Painchaud ,  Michel Poulin ,  Michel Morin

IPC分类号： H04B17/00 ,  H04B10/08

CPC分类号： H04B10/676

摘要： A method is provided for measuring a factor, called herein the single-port rejection ratio (SPRR), characterizing a balanced detection device. The SPRR is representative of the ratio of the weak differential output current measured under illumination of a single-port of the balanced detection device to the strong measurable differential output current obtained under dual-port illumination. An apparatus for measuring the SPRR is also provided.

摘要翻译： 提供了一种用于测量因素的方法，在此称为单端口抑制比（SPRR），表征平衡检测装置。 SPRR代表在平衡检测装置的单端口照明下测量的弱差分输出电流与双端口照明下获得的强大的可测量差分输出电流的比率。 还提供了用于测量SPRR的装置。

公开(公告)号：US20080090158A1

公开(公告)日：2008-04-17

申请号：US11932557

申请日：2007-10-31

申请人： Yves Painchaud ,  Michel Morin

发明人： Yves Painchaud ,  Michel Morin

IPC分类号： G03F1/00

CPC分类号： G02B6/02138 ,  G03F1/34 ,  G03F1/50

摘要： A method for designing an index profile suitable for encoding into a phase mask for manufacturing a complex optical grating is provided. The optical grating corresponds to a target index profile defining a target spectral response. A modified index profile is set equal to the target index profile and expressed as a function of an apodization and phase profiles. The modified index profile is iteratively further modified in order to provide the index profile suitable for encoding in the phase mask. This process creates side bands outside of a spectral region of interest, while maintaining the target spectral response within the spectral region of interest.

摘要翻译： 提供了一种用于设计适合于编码成用于制造复合光栅的相位掩模的折射率分布的方法。 光栅对应于定义目标光谱响应的目标折射率分布。 修改的折射率分布被设置为等于目标折射率分布并且表示为变迹和相位分布的函数。 修改的索引简档被迭代地进一步修改，以便提供适合于相位掩码中的编码的索引简档。 该过程在感兴趣的光谱区域之外产生边带，同时保持感兴趣的光谱区域内的目标光谱响应。

公开(公告)号：US07352931B1

公开(公告)日：2008-04-01

申请号：US11372454

申请日：2006-03-08

申请人： Yves Painchaud ,  Michel Poulin ,  Michel Morin

发明人： Yves Painchaud ,  Michel Poulin ,  Michel Morin

IPC分类号： G02B6/34

CPC分类号： G02B6/02138

摘要： A method for manufacturing a complex multi-channel optical grating using a phase mask is presented. A plurality of sub-gratings is designed, each having an individual spectral response designed to produce one of the channels of the multi-channel grating. The target profile of the grating is determined based on the combination of the index profiles of the individual sub-gratings, the target index profile defining a target spectral response of the multi-channel grating. A modified index profile having a smooth apodization profile but providing the same spectral response as the target index profile, at least within a spectral region of interest, is determined and encoded into the phase mask. The phase mask is then used to photoinduce the grating in a photosensitive medium.

摘要翻译： 提出了使用相位掩模制造复合多通道光栅的方法。 设计了多个子光栅，每个子光栅具有设计成产生多通道光栅的一个通道的单个光谱响应。 基于各个子光栅的折射率分布的组合，确定多通道光栅的目标光谱响应的目标折射率分布来确定光栅的目标轮廓。 至少在感兴趣的光谱区域内，确定具有光滑变迹曲线但是提供与目标折射率分布相同的光谱响应的经修改的折射率分布，并将其编码到相位掩模中。 然后使用相位掩模在光敏介质中对光栅进行光诱导。

公开(公告)号：US06865319B2

公开(公告)日：2005-03-08

申请号：US10101229

申请日：2002-03-18

申请人： Yves Painchaud

发明人： Yves Painchaud

IPC分类号： G02B6/02 ,  G02B6/34 ,  H04B10/18

CPC分类号： G02B6/02085 ,  G02B6/29317 ,  G02B6/2932 ,  G02B6/29394 ,  G02B6/29395 ,  H04B10/2519

摘要： An optical structure and devices based thereon for the compensation of chromatic dispersion in a multi-channel light signal are provided. The optical structure includes a waveguide and a Bragg grating provided therein. The Bragg grating has a plurality of grating components, each associated with one or a few of the channels to be compensated. The period of each grating component is selected to allow compensation of chromatic dispersion experienced by this particular channel or these particluar channels, thereby taking into account the wavelength-dependent dispersion slope of the light signal.

摘要翻译： 提供了一种用于补偿多通道光信号中色散的光学结构及其基础的装置。 光学结构包括其中提供的波导和布拉格光栅。 布拉格光栅具有多个光栅分量，每个光栅分量与要补偿的一个或几个通道相关联。 选择每个光栅分量的周期以允许补偿由该特定通道或这些特定通道经历的色散，从而考虑到光信号的波长依赖色散斜率。

公开(公告)号：US06678049B1

公开(公告)日：2004-01-13

申请号：US09984171

申请日：2002-01-25

申请人： Yves Painchaud

发明人： Yves Painchaud

IPC分类号： G01N2100

CPC分类号： G01N21/4795 ,  G01N2021/4797

摘要： An optical imaging system for detecting light from an excitation light source through a scattering medium. The system includes a photo detector for receiving light from the scattering medium, an amplification circuit coupled from the photo-detector, an electro-optical source coupled from the amplification circuit for providing a secondary light signal, and a streak camera receiving the secondary light signal and providing an image of the scattering medium.

摘要翻译： 一种用于通过散射介质检测来自激发光源的光的光学成像系统。 该系统包括用于从散射介质接收光的光电检测器，从光电检测器耦合的放大电路，从用于提供次级光信号的放大电路耦合的电光源和接收次级光信号的条纹照相机 并提供散射介质的图像。