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公开(公告)号：US20240313496A1
公开(公告)日：2024-09-19
申请号：US18606861
申请日：2024-03-15
Applicant: TERAXION INC. , UNIVERSITE LAVAL
Inventor： Vincent BOULANGER , Pascal DELADURANTAYE
CPC classification number: H01S3/0057 , H01S3/06712 , H01S3/0675
Abstract: A light pulse generator for generating ultrashort light pulses is provided. The light pulse generator is based on a linear cavity free of polarizing components and configured to generate ultrashort light pulses based on spectral broadening of light. Segments of polarization maintaining fibers define an optical fiber path bound by first and second FBGs. A cross-polarization configuration in the cavity allows to couple a slow polarization axis of the optical fiber segment hosting the first FBG optical fiber segment with a fast polarization axis of the optical fiber segment hosting the second FBG. The cross-polarization configuration takes advantage of the birefringence of FBGs in polarization maintaining optical fibers to ensure a systematic start-up in only one predetermined polarization axis, without the necessity to add a polarizer or other polarizing component in the cavity.
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公开(公告)号：US20150036965A1
公开(公告)日：2015-02-05
申请号：US14444635
申请日：2014-07-28
Applicant: TERAXION INC.
Inventor： Kelvin PROSYK , Andre HAGLEY
IPC: G02F1/225
CPC classification number: G02F1/225 , G02F1/2255 , G02F2001/212 , G02F2201/127
Abstract: A Mach-Zehnder optical modulator is provide and has a travelling wave electrode extending over two optical waveguide branches and modulating the relative phase of the optical beam components propagating in those branches. The travelling wave electrode has transmission line conductors and pairs of waveguide electrodes, the waveguide electrodes of each pair being coupled to one of the optical waveguide branches, respectively. The travelling wave electrode further includes active devices having a high impedance input electrically connected to one of the transmission line conductors and a low impedance output electrically connected to one of the waveguide electrodes. Each active device transfers the electrical modulation signal from the associated transmission line conductor onto the associated waveguide electrode according to a voltage transfer function.
Abstract translation: 提供了一种马赫 - 策德尔光调制器，并且具有延伸在两个光波导分支上的行波电极，并调制在这些分支中传播的光束分量的相对相位。 行波电极具有传输线导体和波导电极对，每对波导电极分别耦合到一个光波导支路。 行波电极还包括具有电连接到传输线导体之一的高阻抗输入的有源器件和与其中一个波导电极电连接的低阻抗输出。 每个有源器件根据电压传递函数将相关传输线导体的电调制信号传输到相关波导电极上。
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公开(公告)号：US08861984B2
公开(公告)日：2014-10-14
申请号：US13745529
申请日：2013-01-18
Applicant: Teraxion, Inc.
Inventor： Yves Painchaud
CPC classification number: H04B10/612 , G02B6/12 , G02B6/12004 , G02B6/126 , G02B6/26 , G02B6/34 , H04B10/677
Abstract: A polarization-insensitive optical receiver for demodulating a phase-modulated input optical signal is provided. The optical receiver includes successively a polarization splitter, a first and second interferometric modules including respective delay lines, and a plurality of detectors. The input optical signal is split into two substantially orthogonally-polarized components, which are launched along respective optical paths into the corresponding interferometric modules where they demodulated and subsequently recombined prior to being detected by the plurality of detectors. Advantageously, the optical receiver allows mitigating undesired discrepancies between the optical paths traveled by the two polarization components by arranging the respective delay lines of the interferometric modules into intertwined spiraling structures. A waveguide assembly including a substrate and a pair of waveguides on the substrate and defining intertwined spiraling structures is also provided, as well as a waveguide coupling assembly for coupling, onto a same detector, two optical signals travelling along two parallel coplanar waveguides.
Abstract translation: 提供一种用于解调相位调制输入光信号的偏振不敏感光接收器。 光接收器包括连续的偏振分离器，包括相应延迟线的第一和第二干涉模块以及多个检测器。 输入光信号被分成两个基本上正交极化的分量，它们沿着相应的光路发射到相应的干涉测量模块中，在那里它们被解调并且随后在多个检测器被检测之前被重组。 有利地，光接收器允许通过将干涉测量模块的相应延迟线布置成相互缠绕的螺旋结构来减轻由两个偏振分量行进的光路之间的不期望的差异。 还提供了一种波导组件，其包括衬底和衬底上的一对波导并且限定相互缠绕的螺旋结构，以及用于将两个沿两个平行共面波导行进的光信号耦合到同一检测器上的波导耦合组件。
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公开(公告)号：US20130188971A1
公开(公告)日：2013-07-25
申请号：US13745529
申请日：2013-01-18
Applicant: TERAXION, INC.
Inventor： Yves Painchaud
CPC classification number: H04B10/612 , G02B6/12 , G02B6/12004 , G02B6/126 , G02B6/26 , G02B6/34 , H04B10/677
Abstract: A polarization-insensitive optical receiver for demodulating a phase-modulated input optical signal is provided. The optical receiver includes successively a polarization splitter, a first and second interferometric modules including respective delay lines, and a plurality of detectors. The input optical signal is split into two substantially orthogonally-polarized components, which are launched along respective optical paths into the corresponding interferometric modules where they demodulated and subsequently recombined prior to being detected by the plurality of detectors. Advantageously, the optical receiver allows mitigating undesired discrepancies between the optical paths traveled by the two polarization components by arranging the respective delay lines of the interferometric modules into intertwined spiraling structures. A waveguide assembly including a substrate and a pair of waveguides on the substrate and defining intertwined spiraling structures is also provided, as well as a waveguide coupling assembly for coupling, onto a same detector, two optical signals travelling along two parallel coplanar waveguides.
Abstract translation: 提供一种用于解调相位调制输入光信号的偏振不敏感光接收器。 光接收器包括连续的偏振分离器，包括相应延迟线的第一和第二干涉模块以及多个检测器。 输入光信号被分成两个基本上正交极化的分量，它们沿着相应的光路发射到相应的干涉测量模块中，在那里它们被解调并且随后在多个检测器被检测之前被重组。 有利地，光接收器允许通过将干涉测量模块的相应延迟线布置成相互缠绕的螺旋结构来减轻由两个偏振分量行进的光路之间的不期望的差异。 还提供了一种波导组件，其包括衬底和衬底上的一对波导并且限定相互缠绕的螺旋结构，以及用于将两个沿两个平行共面波导行进的光信号耦合到同一检测器上的波导耦合组件。
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5.发明授权Tunable optical structure for the compensation of chromatic dispersion in a light signal 有权可调光学结构，用于补偿光信号中的色散公开(公告)号：US06941044B2
公开(公告)日：2005-09-06
申请号：US10232106
申请日：2002-08-28
Applicant: Yves Painchaud , Richard LaChance , Sylviane Lelièvre
Inventor： Yves Painchaud , Richard LaChance , Sylviane Lelièvre
CPC classification number: G02B6/29395 , G02B6/02085 , G02B6/29317 , G02B6/2932 , G02B6/29394 , H04B10/2519
Abstract: 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.
Abstract translation: 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。
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Patent Agency Ranking
公开(公告)号：US06907164B2
公开(公告)日：2005-06-14
申请号：US09952715
申请日：2001-09-12
Applicant: Richard L. Lachance , André Vo Van , Michel Morin , Martin Guy , Martin Pelletier
Inventor： Richard L. Lachance , André Vo Van , Michel Morin , Martin Guy , Martin Pelletier
CPC classification number: G02B6/0218 , G02B6/022 , G02B6/29317 , G02B6/29322 , G02B6/29398
Abstract: An athermally packaged optical fiber device, such as a Bragg grating, is provided. The device includes a hollow structure, and a free and a threaded member projecting in the hollow structure from both ends. The optical fiber is mounted in tension inside the hollow structure through longitudinal fiber-receiving bores in both members, and has an anchor point affixed to each member with the grating therebetween. The anchor point of the threaded member is provided outside of the hollow structure, making the device more compact. The free and threaded members are rotatable together to adjust the resonant wavelength of the grating, and a nut may be provided to allow a fine-tuning. The hollow structure, free member and threaded member have a coefficient of thermal expansion selected so that they together compensate for the temperature dependency of the Bragg wavelength.
Abstract translation: 提供了诸如布拉格光栅之类的非热封封的光纤器件。 该装置包括中空结构，以及从两端突出到中空结构中的自由螺纹构件。 光纤通过两个构件中的纵向光纤接收孔安装在中空结构内部的张力中，并且具有固定到每个构件的锚点，其间具有光栅。 螺纹构件的固定点设置在中空结构的外侧，使得该装置更紧凑。 自由和螺纹构件可以一起旋转以调节光栅的谐振波长，并且可以提供螺母以允许微调。 中空结构，自由构件和螺纹构件具有选择的热膨胀系数，使得它们一起补偿布拉格波长的温度依赖性。
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7.发明申请Apodized fiber bragg grating and improved phase mask, method and system for making the same 有权变迹光纤布拉格光栅和改进的相位掩模，制作方法和系统公开(公告)号：US20040264858A1
公开(公告)日：2004-12-30
申请号：US10789374
申请日：2004-02-27
Applicant: Teraxion Inc.
Inventor： Joshua E. Rothenberg
IPC: G02B006/34
CPC classification number: G02B5/1857 , G02B6/02138
Abstract: An apodized fiber Bragg grating, and a phase mask, method and system for making such a grating are disclosed. The refractive index profile of the grating has a periodic apodization phase component which is designed so that the grating fringes reflecting light in a spectral region of interest are apodized, by generating spurious reflection features outside of this spectral region of interest. Apodization is therefore provided through a phase variation of the grating as opposed to an amplitude variation. The phase component is added to the profile of the phase mask grating corrugations to obtain the phase-apodized grating.
Abstract translation: 公开了一种变迹光纤布拉格光栅，以及用于制造这种光栅的相位掩模，方法和系统。 光栅的折射率分布具有周期性的变迹相位分量，其被设计成通过在该感兴趣的光谱区域之外产生杂散反射特征来将感兴趣的光谱区域中的光反射的光栅条纹变暗。 因此，通过与幅度变化相反的光栅的相位变化来提供变迹。 将相位分量添加到相位掩模光栅波纹的轮廓以获得相位变迹的光栅。
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公开(公告)号：US20040161197A1
公开(公告)日：2004-08-19
申请号：US10773005
申请日：2004-02-04
Applicant: Teraxion Inc.
Inventor： Francois Pelletier , Andre Vo Van
IPC: G02B006/34
CPC classification number: G02B6/022 , G02B6/02085 , G02B6/0218 , H04B10/2519
Abstract: An adjustable chromatic dispersion compensator is provided, with the possibility of passive athermalisation. The device includes an optical fiber grating which is fixed on its length to an elongated beam member that has a flexible cantilever portion so that a non-uniform tensile strain induced in the grating reconfigures the group delay response. The chirp of the grating is changed by the bending of the bar, allowing adjustable chromatic dispersion compensation. Adjustment of the central filter wavelength without affecting the grating integrity is further provided. A multi-material construction allows the package to passively compensate for the natural temperature dependence of the filter resonance wavelength by varying the strain in the fiber in response to changes in the ambient temperature.
Abstract translation: 提供了一种可调色散补偿器，具有被动绝热的可能性。 该装置包括光纤光栅，该光纤光栅在其长度上固定到具有柔性悬臂部分的细长梁部件，使得在光栅中感应的非均匀拉伸应变重新配置组延迟响应。 光栅的啁啾由条的弯曲而改变，允许可调色散补偿。 进一步提供中央滤波器波长的调整而不影响光栅的完整性。 多材料结构允许封装通过响应于环境温度的变化改变光纤中的应变而被动地补偿滤波器谐振波长的自然温度依赖性。
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公开(公告)号：US20020150335A1
公开(公告)日：2002-10-17
申请号：US10081733
申请日：2002-02-22
Applicant: Teraxion Inc.
Inventor： Richard L. Lachance , Andre Vovan
IPC: G02B006/34 , G02B006/00
CPC classification number: G02B6/0218 , G02B6/022 , G02B6/29317 , G02B6/29322 , G02B6/29398
Abstract: A fine-tuning assembly for an optical grating in an optical fiber is provided. The fiber is mounted under tension in a hollow structure which has a sliding member longitudinally slideable therein. The fiber is attached to both the sliding member and hollow structure. A slanted passage is provided in the sliding member, forming a small angle with the transversal, and a wedge member is slideably inserted in this passage. To fine-tune the spectral response of the grating, the wedge member is transversally displaced without any longitudinal displacement, preferably by the action of screws, thereby pushing on its walls to longitudinally slide the sliding member and adjust the tension in the fiber.
Abstract translation: 提供了一种用于光纤中的光栅的微调组件。 纤维在张力下安装在中空结构中，该中空结构具有可在其中纵向滑动的滑动构件。 纤维连接到滑动构件和中空结构。 在滑动构件中设置有倾斜通道，与横向形成小角度，并且楔形构件可滑动地插入该通道中。 为了微调光栅的光谱响应，楔形元件优选地通过螺丝的作用而横向移位，而不是任何纵向位移，从而推动其壁上以纵向滑动滑动构件并调节光纤中的张力。
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公开(公告)号：US20020141700A1
公开(公告)日：2002-10-03
申请号：US09952715
申请日：2001-09-12
Applicant: Teraxion Inc.
Inventor： Richard L. Lachance , Andre Vo Van , Michel Morin , Martin Guy , Martin Pelletier
IPC: G02B006/34 , G02B006/00
CPC classification number: G02B6/0218 , G02B6/022 , G02B6/29317 , G02B6/29322 , G02B6/29398
Abstract: An athermally packaged optical fiber device, such as a Bragg grating, is provided. The device includes a hollow structure, and a free and a threaded member projecting in the hollow structure from both ends. The optical fiber is mounted in tension inside the hollow structure through longitudinal fiber-receiving bores in both members, and has an anchor point affixed to each member with the grating therebetween. The anchor point of the threaded member is provided outside of the hollow structure, making the device more compact. The free and threaded members are rotatable together to adjust the resonant wavelength of the grating, and a nut may be provided to allow a fine-tuning. The hollow structure, free member and threaded member have a coefficient of thermal expansion selected so that they together compensate for the temperature dependency of the Bragg wavelength.
Abstract translation: 提供了诸如布拉格光栅之类的非热封封的光纤器件。 该装置包括中空结构，以及从两端突出到中空结构中的自由螺纹构件。 光纤通过两个构件中的纵向光纤接收孔安装在中空结构内部的张力中，并且具有固定到每个构件的锚点，其间具有光栅。 螺纹构件的固定点设置在中空结构的外侧，使得该装置更紧凑。 自由和螺纹构件可以一起旋转以调节光栅的谐振波长，并且可以提供螺母以允许微调。 中空结构，自由构件和螺纹构件具有选择的热膨胀系数，使得它们一起补偿布拉格波长的温度依赖性。
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