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公开(公告)号：US11349271B2
公开(公告)日：2022-05-31
申请号：US16209399
申请日：2018-12-04
Applicant: TERAXION INC.
Inventor： François Trépanier , Pascal Deladurantaye , Axel Saumier-Verret , Sylvain Boudreau , René Dionne , Mathieu Demers , Jean-Thomas Landry
Abstract: A bulk compressor for use in a chirped pulse amplification system (CPA) comprising a tunable pulse stretcher and an amplifier is provided. The bulk compressor includes a mounting block formed as a monolithic structure and made of solid material. The mounting block may define a plurality of mounting surfaces each forming a collar surrounding a light passage. Optical components are mounted on the mounting block in a fixed mutual spatial relationship, each optical component having a front face having a peripheral portion mounted in direct contact with the collar formed by a respective one of the mounting surfaces. The bulk compressor may be provided as a stand-alone component, a part of a stretcher-compressor pair or a full CPA system, and may be used in a method for amplifying input optical pulses.
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公开(公告)号：US20220120964A1
公开(公告)日：2022-04-21
申请号：US17502997
申请日：2021-10-15
Applicant: TERAXION INC. , UNIVERSITÉ LAVAL
Inventor： Samuel GOUIN , Claude CARIGNAN , Mathieu FAUCHER , François TREPANIER , Guy ROUSSEAU , Martin BERNIER , Alain VILLENEUVE
IPC: G02B6/02 , C03C25/622
Abstract: A method and a system for providing a low absorption Bragg grating along a grating region of an optical fiber are presented. The Bragg grating is written along the grating region by multiphoton absorption of ultrafast light pulses impinged on this grating region through a polymer coating of the optical fiber. The Bragg grating is then photobleached by propagating a photobleaching light beam along the optical fiber. The photobleaching light beam has optical parameters selected to reduce defects in the grating region induced by the writing of the Bragg grating in a substantially non-thermal regime.
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公开(公告)号：US11215749B2
公开(公告)日：2022-01-04
申请号：US16866861
申请日：2020-05-05
Applicant: TERAXION INC.
Inventor： Guillaume Brochu , Michel Morin , François Trépanier
IPC: G02B6/02
Abstract: Optical fiber filters and uses thereof are presented. In typical implementations, there is provided a FBG taking deleterious light out of a fiber core without reflecting it into the fiber core. It also allows the unhindered transmission of useful light at a wavelength outside of the spectral band covered by the deleterious light. The filter couples the incoming deleterious light to cladding modes propagating in the opposite direction without coupling the incoming useful light to core or cladding modes propagating in the opposite direction. The filter may for example be useful as a Raman or ASE filter in a laser cavity of other optical devices.
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公开(公告)号：US20150286108A1
公开(公告)日：2015-10-08
申请号：US14263491
申请日：2014-04-28
Applicant: TERAXION INC.
Inventor： Kelvin PROSYK
CPC classification number: G02F1/225 , G02F1/0123 , G02F2001/212 , G02F2201/126 , G02F2201/127
Abstract: Mach-Zehnder optical modulators and IQ modulators based on a series push-pull travelling wave electrode are provided. The modulator includes a conductive backplane providing an electrical signal path. One or more voltage control taps are electrically connected to the conductive backplane within an area underneath the travelling wave electrode and provide an equalizing DC control voltage to the conductive backplane. In other variants, a plurality of conductive backplane segments are provided, and at least one voltage control tap is electrically connected to each conductive backplane segment within an area underneath the travelling wave electrode and provides a DC control voltage to the corresponding conductive backplane segment.
Abstract translation: 提供了基于串联推挽行波电极的马赫 - 曾德尔光学调制器和IQ调制器。 调制器包括提供电信号路径的导电背板。 一个或多个电压控制抽头在行波电极下面的区域内电连接到导电背板，并向导电背板提供均衡的直流控制电压。 在其他变型中，提供多个导电背板段，并且至少一个电压控制抽头电连接到在行波电极下面的区域内的每个导电背板段，并向对应的导电底板段提供DC控制电压。
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35.发明授权公开(公告)号：US08948549B2
公开(公告)日：2015-02-03
申请号：US14092569
申请日：2013-11-27
Applicant: Teraxion Inc.
Inventor： Marie-Josée Picard , Yves Painchaud
CPC classification number: G02B6/126 , G02B6/1228 , G02B6/2766 , G02B2006/12107
Abstract: A polarization rotator assembly for rotating a polarization mode of an electromagnetic signal is provided. The polarization rotator assembly has a waveguiding structure of co-extensive first and second layers defining, successively, an input portion, a subwavelength composite portion and a polarization rotating portion. The subwavelength composite portion is formed by the first and second layers, where the second layer defines a subwavelength pattern. The polarization rotator portion is geometrically configured to rotate the polarization mode of the electromagnetic signal.
Abstract translation: 提供了一种用于旋转电磁信号的偏振模式的偏振旋转器组件。 偏振旋转器组件具有共同扩展的第一和第二层的波导结构，其依次限定了输入部分，亚波长复合部分和偏振旋转部分。 亚波长复合部分由第一层和第二层形成，其中第二层限定亚波长图案。 偏振旋转器部分被几何地配置成旋转电磁信号的偏振模式。
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Patent Agency Ranking
36.发明授权Mach-Zehnder optical modulator having a travelling wave electrode with a distributed ground bridging structure 有权具有具有分布式接地桥接结构的行波电极的马赫 - 曾德尔光调制器公开(公告)号：US08903202B1
公开(公告)日：2014-12-02
申请号：US14081388
申请日：2013-11-15
Applicant: Teraxion Inc.
Inventor： Kelvin Prosyk , Ian Nicholas Woods
CPC classification number: G02F1/225 , G02F2001/212 , G02F2002/008 , G02F2201/126 , G02F2201/127 , G02F2203/50
Abstract: A Mach-Zehnder optical modulator with a travelling wave electrode having one or more signal transmission line conductors and one or more ground transmission line conductors is provided. The modulator includes a ground strip conductor extending substantially in parallel to the ground transmission line conductors, and a distributed bridging structure electrically connecting the ground strip conductor and at least one of the ground transmission line conductors along a substantial portion of a length thereof. The distributed bridging structure may be embodied by a plurality of electrical connections at disposed regularly spaced intervals.
Abstract translation: 提供了具有一个或多个信号传输线导体和一个或多个接地传输线导体的行波电极的马赫 - 策德尔光调制器。 调制器包括基本上平行于接地传输线导体延伸的接地带状导体，以及分布式桥接结构，其沿着其长度的大部分电连接接地带状导体和至少一个接地传输线导体。 分布式桥接结构可以通过多个电连接以规定间隔的间隔设置。
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37.发明申请公开(公告)号：US20140153862A1
公开(公告)日：2014-06-05
申请号：US14092569
申请日：2013-11-27
Applicant: TERAXION INC.
Inventor： Marie-Josée PICARD , Yves PAINCHAUD
IPC: G02B6/27
CPC classification number: G02B6/126 , G02B6/1228 , G02B6/2766 , G02B2006/12107
Abstract: A polarization rotator assembly for rotating a polarization mode of an electromagnetic signal is provided. The polarization rotator assembly has a waveguiding structure of co-extensive first and second layers defining, successively, an input portion, a subwavelength composite portion and a polarization rotating portion. The subwavelength composite portion is formed by the first and second layers, where the second layer defines a subwavelength pattern. The polarization rotator portion is geometrically configured to rotate the polarization mode of the electromagnetic signal.
Abstract translation: 提供了一种用于旋转电磁信号的偏振模式的偏振旋转器组件。 偏振旋转器组件具有共同扩展的第一和第二层的波导结构，其依次限定了输入部分，亚波长复合部分和偏振旋转部分。 亚波长复合部分由第一层和第二层形成，其中第二层限定亚波长图案。 偏振旋转器部分被几何地配置成旋转电磁信号的偏振模式。
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公开(公告)号：US20130188918A1
公开(公告)日：2013-07-25
申请号：US13749165
申请日：2013-01-24
Applicant: TERAXION, INC.
Inventor： Yves Painchaud , François Pelletier
IPC: G02B6/036
CPC classification number: G02B6/036 , G02B6/03694 , G02B6/122 , G02B6/125 , G02B6/2813
Abstract: A SOI optical structure is provided, including a succession of a substrate, insulator layer, patterned silicon layer and first and second cladding layer. In one embodiment the substrate is made of silicon, the insulator layer and first cladding are made of silicon oxide, and the second cladding layer is made of silicon nitride. The double cladding configuration provides both light confinement within the waveguides defined by the patterned silicon layer and optical isolation, for example from metal absorption when the optical structure is metallized. The double cladding configuration may also help reducing stresses within the optical structure.
Abstract translation: 提供SOI光学结构，其包括一系列的衬底，绝缘体层，图案化硅层以及第一和第二覆层。 在一个实施例中，衬底由硅制成，绝缘体层和第一覆层由氧化硅制成，第二覆层由氮化硅制成。 双包层构造提供了由图案化硅层限定的波导内的光限制和光学隔离，例如当光学结构被金属化时的金属吸收。 双包层结构还可以有助于减小光学结构内的应力。
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39.发明申请公开(公告)号：US20030161580A1
公开(公告)日：2003-08-28
申请号：US10351583
申请日：2003-01-24
Applicant: TERAXION INC.
Inventor： Michel Morin , Yves Painchaud , Sylviane Lelievre , Richard Lachance
IPC: G02B006/34 , G02B006/26
CPC classification number: G02B6/02085 , G02B6/02204 , G02B6/29319 , G02B6/2932 , G02B6/29394 , G02B6/29395 , H04B10/2519
Abstract: 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.
Abstract translation: 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。 还提供了调谐装置，以便调整每个光学结构的光栅分量的色散，并且调整参数的适当选择允许独立地调节色散和色散斜率。
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公开(公告)号：US20240356305A1
公开(公告)日：2024-10-24
申请号：US18760508
申请日：2024-07-01
Applicant: TERAXION INC.
Inventor： Sylvain BOUDREAU , Keven BÉDARD , Michel MORIN , François COSTIN , André BABIN , Simon AYOTTE
CPC classification number: H01S5/32 , H01S5/0655 , H01S5/125
Abstract: A semiconductor laser comprising a single mode laser cavity having a stack of semiconducting layers defining a transversal p-n junction is provided. A plurality of electrodes are coupled to corresponding sections of the laser cavity along the longitudinal light propagation direction, each corresponding section defining one of an amplification section or a modulation section. One or more DC sources are coupled to the electrodes associated with the amplification sections to forward-bias the p-n junction above transparency, so as to provide gain in the associated amplification sections. One or more modulation signal sources are coupled to the electrodes associated with the modulation sections, and apply a modulation signal across the p-n junction below transparency, the modulation signal providing a modulation of an output optical frequency of the semiconductor laser. Each modulation section is operated in photovoltaic mode.
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