公开(公告)号：US20030035629A1

公开(公告)日：2003-02-20

申请号：US10232106

申请日：2002-08-28

Applicant: TERAXION INC.

Inventor： Yves Painchaud ,  Richard Lachance ,  Sylviane Lelievre

IPC: G02B006/34

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。

公开(公告)号：US20220283540A1

公开(公告)日：2022-09-08

申请号：US17689645

申请日：2022-03-08

Applicant: TERAXION INC.

Inventor： François TREPANIER ,  Sylvain BOUDREAU ,  Alain MAILLOUX ,  Guillaume BROCHU

IPC: G03H1/04 ,  G03H1/02 ,  G02B5/32

Abstract: A method of manufacturing a Volume Bragg Grating (VBG) is provided, comprising providing a cylindrical bulk medium made of a transparent glass material and having a central axis along a longitudinal direction, and inscribing an interference pattern in the cylindrical bulk medium. The interference pattern has a plurality of grating fringe elements distributed along a line parallel to the central axis. The method further includes rotating the cylindrical bulk medium about the central axis during said inscribing, thereby azimuthally extending the grating fringes elements. There is further provided a VBG manufactured according to such a method, the use of such a VBG in a CPA system of cladding-pumped fiber laser.

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

IPC: H01S3/00 ,  H01S3/04 ,  H01S3/067 ,  H01S3/02

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.

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.

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.

公开(公告)号：US09182546B2

公开(公告)日：2015-11-10

申请号：US12638372

申请日：2009-12-15

Applicant: Kelvin Prosyk ,  Ronald Kaiser ,  Karl-Otto Velthaus

Inventor： Kelvin Prosyk ,  Ronald Kaiser ,  Karl-Otto Velthaus

IPC: G02B6/26 ,  G02B6/42 ,  G02B6/122 ,  G02B6/30

CPC classification number: G02B6/136 ,  G02B6/1228 ,  G02B6/305 ,  G02B2006/12035 ,  G02F1/2255 ,  G02F2001/212

Abstract: A monolithic optoelectronic device has a spot-size converter optically connected to a waveguide. The overclad extending over the core of the waveguide is thinner and more highly doped that the overclad of the spot-size converter. This structure can be made by applying a process of selective etching and enhanced regrowth to create selective regions of the overclad of different thickness or doping.

Abstract translation: 单片光电子器件具有光学连接到波导的点尺寸转换器。 在波导核心上延伸的外包层更薄且更高掺杂，使得点尺寸转换器的外包层。 可以通过应用选择性蚀刻和增强的再生长过程来产生不同厚度或掺杂的外包层的选择性区域来制备该结构。

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

IPC: G02F1/225 ,  G02F1/01

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。

公开(公告)号：US09069223B2

公开(公告)日：2015-06-30

申请号：US13767525

申请日：2013-02-14

Applicant: COGO Optronics, Inc.

Inventor： Kelvin Prosyk

IPC: G02F1/225 ,  G02F1/01

CPC classification number: G02F1/225 ,  G02F1/011 ,  G02F2201/126 ,  G02F2201/127

Abstract: A Mach-Zehnder optical modulator with a series push-pull traveling wave electrode uses a balanced coplanar stripline with lateral ground planes. Two signal electrodes extend along the center of the optical modulator adjacent and parallel to the optical waveguides in a series push-pull configuration. The ground planes run parallel to the signal electrodes, but are spaced laterally outward from the signal electrodes.

Abstract translation: 具有串联推挽行波电极的马赫 - 曾德尔光学调制器使用具有侧向接地平面的平衡共面带状线。 两个信号电极沿着光调制器的中心沿串联推挽配置相邻并平行于光波导延伸。 接地平面平行于信号电极延伸，但是从信号电极横向向外间隔开。

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

IPC: G02B6/00 ,  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。

公开(公告)号：US08917958B2

公开(公告)日：2014-12-23

申请号：US13722400

申请日：2012-12-20

Applicant: COGO Optronics, Inc.

Inventor： Kelvin Prosyk

IPC: G02F1/035 ,  G02F1/225

CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F2201/126

Abstract: An electrical waveguide transmission device accepts a differential electrical input signal (e.g., S+ and S−) propagating along two separate signal conductors with grounded electrical return paths, and outputs the differential input signal to a series push-pull traveling wave electrode Mach-Zehnder optical modulator over a pair of output conductors that act as a return path for each other and provide a desired characteristic impedance matching that of the Mach-Zehnder optical modulator.

Abstract translation: 电波导传输装置接受沿着具有接地电返回路径的两个分离的信号导体传播的差分电输入信号（例如，S +和S），并将差分输入信号输出到串联推挽行波电极马赫 - 策德尔 调制器通过一对输出导体，其作为彼此的返回路径，并提供与马赫 - 曾德尔光调制器匹配的所需特性阻抗。