-
公开(公告)号：US08619824B2
公开(公告)日：2013-12-31
申请号：US13225155
申请日：2011-09-02
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：US20120063474A1
公开(公告)日：2012-03-15
申请号：US13225155
申请日：2011-09-02
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：US20180224605A1
公开(公告)日：2018-08-09
申请号：US15943165
申请日：2018-04-02
CPC分类号： G02B6/14 , G02B6/00 , G02B6/1228 , G02B6/124 , G02B6/125 , G02B6/305 , G02B2006/12152
摘要： A spot-size converter having a waveguiding structure. The first part of the waveguiding structure receives light from or transmits light to a first waveguide in a first propagation mode. The first part of the waveguiding structure has a longitudinally varying effective refractive index that decreases away from the first waveguide. The second part of the waveguiding structure transmits light to or receives light from a second waveguide in a second propagation mode. The second part of the waveguiding structure has a number of high-index elements arranged in a single plane, extending along a longitudinal waveguiding axis and at least partially overlapping the first part of the waveguiding structure. The first propagation mode of the first waveguide progressively transforms into the second propagation mode of the second waveguide along the longitudinal waveguiding axis through an overlap region between the first part and the second part of the waveguiding structure.
-
4.发明授权Method and apparatus for measuring a factor characterizing a balanced detection device 有权用于测量表征平衡检测装置的因子的方法和装置公开(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
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。
-
5.发明授权公开(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：US09841618B1
公开(公告)日：2017-12-12
申请号：US15491834
申请日：2017-04-19
CPC分类号： G02F1/025 , G02F1/0121 , G02F1/2255 , G02F1/2257 , G02F2001/0154 , G02F2001/212
摘要： An optical modulator circuit includes first and second electrodes, first and second p-n junction segments (PNJSs), and first and second optical waveguides. The first PNJS includes a first modulating p-n junction (MPNJ) in series with a first non-modulating device (NMD) that are connected to the first and second electrodes, respectively, where the first NMD includes a first substantially larger capacitance than the first MPNJ. The second PNJS includes a second NMD in series with a second MPNJ that are connected to the first and second electrodes, respectively, where the second NMD includes a second substantially larger capacitance than the second MPNJ. The first and second optical waveguides superimpose the first and second MPNJs, respectively, where the first and second MPNJs are configured to modulate a refractive index of the first and second optical waveguides, respectively, based on the substantially larger capacitance of the first NMD and the second NMD.
-
7.发明申请METHOD FOR DESIGNING AN INDEX PROFILE SUITABLE FOR ENCODING INTO A PHASE MASK FOR MANUFACTURING A COMPLEX OPTICAL GRATING 审中-公开用于设计适用于编码相位掩模的索引配置文件的方法，用于制造复杂的光学光栅公开(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：US06415172B1
公开(公告)日：2002-07-02
申请号：US09489528
申请日：2000-01-21
申请人： Yves Painchaud , Stéphane Chatigny , Michel Morin
发明人： Yves Painchaud , Stéphane Chatigny , Michel Morin
IPC分类号： A61B500
CPC分类号： A61B5/0091 , A61B5/4312 , G01N21/4795
摘要： The method for scanning a turbid medium involves displacing an optical signal source over a first face of the medium and a corresponding optical detector over an opposite face from one respective spatial location to another. Each spatial location is associated with a corresponding input region on the first face and a corresponding output region on the opposite second face. The optical detector in response to optical signals detected from each of the output regions generates a primary set of image data, secondary and/or tertiary image data by scanning the turbid medium using input regions and output regions of different sizes. The various sets of image data obtained may be manipulated in any manner, namely subjected to a data processing technique, so as to, for example, highlight the differences or similarities between the images.
摘要翻译： 用于扫描混浊介质的方法包括在介质的第一面上移动光信号源，并在相对的面上从相应的空间位置到另一空间位置移动对应的光学检测器。 每个空间位置与第一面上的对应输入区域和相对的第二面上的对应的输出区域相关联。 响应于从每个输出区域检测到的光信号，光学检测器通过使用不同大小的输入区域和输出区域扫描浊度介质来生成主要图像数据，次级和/或三级图像数据。 获得的各组图像数据可以以任何方式被操纵，即经受数据处理技术，以便例如突出显示图像之间的差异或相似之处。
-
9.发明授权Optical imaging through scattering media: fit to an inhomogeneous diffusion model for differentiation 失效通过散射介质的光学成像：适合于用于分化的不均匀扩散模型
公开(公告)号：US6148226A
公开(公告)日：2000-11-14
申请号：US23414
申请日：1998-02-13
申请人： Yves Painchaud , Michel Morin , Andre Parent
发明人： Yves Painchaud , Michel Morin , Andre Parent
CPC分类号： G01N21/49
摘要： A method of optical imaging through a scattering medium is provided in which a fit is made to an inhomogeneous diffusion model. The method facilitates good differentiation between scattering and absorption. The variation of the diffusion curve associated with the presence of an inclusion is considered rather than the diffusion curve itself. An empirical model is provided which describes the variation of the diffusion curve. A linear curve fitting process is performed to provide two parameters, one parameter associated with the scattering property of the inclusion and the other parameter associated with the absorption property of the inclusion.
摘要翻译： 提供了通过散射介质进行光学成像的方法，其中对非均匀扩散模型进行拟合。 该方法有利于散射和吸收之间的良好分化。 考虑与夹杂物的存在相关的扩散曲线的变化，而不是扩散曲线本身。 提供了一个经验模型，描述了扩散曲线的变化。 进行线性曲线拟合处理以提供两个参数，一个参数与夹杂物的散射特性相关联，另一个参数与包含物的吸收特性相关。
-
10.发明授权公开(公告)号：US06879755B2
公开(公告)日：2005-04-12
申请号：US10351583
申请日：2003-01-24
CPC分类号： G02B6/02085 , G02B6/02204 , G02B6/29319 , G02B6/2932 , G02B6/29394 , G02B6/29395 , H04B10/2519
摘要： A dispersion compensator for the compensation of chromatic dispersion in a multi-channel light signal is provided. The compensator includes a pair of optical structures each having 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. An optical assembly propagates the light signal sequentially through both optical structures. The periods of the grating components are selected to allow compensation of chromatic dispersion experienced by this particular channel or these particular channels, thereby taking into account the dispersion slope of the light signal. Tuning means are also provided in order to adjust the dispersion of the grating components of each optical structures, and proper selection of the tuning parameters allows tuning independently both the dispersion and dispersion slope.
摘要翻译： 提供了用于补偿多通道光信号中色散的色散补偿器。 补偿器包括一对光学结构，每个光学结构具有波导和设置在其中的布拉格光栅。 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。 光学组件顺序地通过两个光学结构传播光信号。 选择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色散斜率。 还提供调谐装置以便调整每个光学结构的光栅分量的色散，并且适当选择调谐参数允许独立地调节色散和色散斜率。
-
-
-
-
-
-
-
-
-
搜索结果
30 条记录 (耗时 0.03 秒)