公开(公告)号：US12189176B2

公开(公告)日：2025-01-07

申请号：US17502997

申请日：2021-10-15

Applicant: TERAXION INC.

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：US11681094B2

公开(公告)日：2023-06-20

申请号：US17541867

申请日：2021-12-03

Applicant: TERAXION INC.

Inventor： Guillaume Brochu ,  Michel Morin ,  François Trépanier

IPC: G02B6/02

CPC classification number: G02B6/02085 ,  G02B6/02204

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：US20220123526A1

公开(公告)日：2022-04-21

申请号：US17384135

申请日：2021-07-23

Applicant: TeraXion Inc.

Inventor： Sylvain BOUDREAU ,  Keven BÉDARD ,  Michel MORIN ,  François COSTIN ,  André BABIN ,  Simon AYOTTE

IPC: H01S5/32 ,  H01S5/125 ,  H01S5/065

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.

公开(公告)号：US20220091327A1

公开(公告)日：2022-03-24

申请号：US17541867

申请日：2021-12-03

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：US10663654B2

公开(公告)日：2020-05-26

申请号：US16515132

申请日：2019-07-18

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：US20160004021A1

公开(公告)日：2016-01-07

申请号：US14793114

申请日：2015-07-07

Applicant: TERAXION INC.

Inventor： François PELLETIER ,  Christine LATRASSE ,  Marie-Josée PICARD ,  Michel POULIN ,  Yves PAINCHAUD

IPC: G02B6/42 ,  G02B6/38

CPC classification number: G02B6/4292 ,  G02B6/3839 ,  G02B6/4204 ,  G02B6/421 ,  G02B6/428

Abstract: A connectorized optical chip assembly connectable to an external optical fiber having a fiber connector is provided. The connectorized optical chip assembly includes a substrate, an optical chip having an on-chip optical waveguide and a connectorized interface. The connectorized interface includes an optical coupling element mounted in optical alignment with the on-chip optical waveguide. The connectorized interface includes a chip connector engaging the optical coupling element and configured for mating with the fiber connector of the external optical fiber, so as to provide an optical coupling of light between the optical coupling element and the external optical fiber. The connectorized optical chip assembly also includes a mechanical support structure supporting the connectorized interface onto the substrate. Preferably, the components of the connectorized optical assembly are made of materials heat resistant to temperatures used to melt solder in surface mount processes.

Abstract translation: 提供一种可连接到具有光纤连接器的外部光纤的连接的光学芯片组件。 连接的光学芯片组件包括衬底，具有片上光波导的光学芯片和连接器化接口。 连接器接口包括与片上光波导光学对准安装的光耦合元件。 连接器接口包括接合光耦合元件并被配置为与外部光纤的光纤连接器配合的芯片连接器，以便在光耦合元件和外部光纤之间提供光的光耦合。 连接的光学芯片组件还包括支撑衬底上的连接器界面的机械支撑结构。 优选地，连接器化光学组件的部件由耐热表面贴装工艺中熔化焊料的温度的材料制成。

公开(公告)号：US20040252364A1

公开(公告)日：2004-12-16

申请号：US10831338

申请日：2004-04-23

Applicant: Teraxion Inc.

Inventor： Yves Painchaud

IPC: G02B006/34 ,  G02F001/33

CPC classification number: G02B6/02152 ,  G02B6/02123 ,  G02B6/02171 ,  G02B6/02185

Abstract: Methods to improve the optical properties of Bragg gratings are disclosed. A first method includes a post correction of the refractive index profile by applying an average index correction thereto. The average index correction is obtained through an analysis of the defects of the refractive index profile characterised through a reconstruction thereof. A second method includes a pre-correction to the refractive index profile by characterising the defects of a test grating, and again calculating an average index correction based thereon. Further gratings are then made using a corrected refractive index profile.

Abstract translation: 公开了改善布拉格光栅的光学特性的方法。 第一种方法包括通过对其进行平均指数校正来对折射率分布进行后校正。 通过对通过其重建表征的折射率分布的缺陷的分析来获得平均指数校正。 第二种方法包括通过表征测试光栅的缺陷对折射率分布进行预校正，并且再次基于此计算平均折射率校正。 然后使用校正的折射率分布来制作另外的光栅。

公开(公告)号：US20040008413A1

公开(公告)日：2004-01-15

申请号：US10431343

申请日：2003-05-06

Applicant: Teraxion Inc.

Inventor： Francois Trepanier ,  Michel Poulin

IPC: G02B027/64

CPC classification number: G02B5/1871 ,  G02B5/32 ,  G02B27/60

Abstract: A method for manufacturing complex gratings masks having phase shifted regions and a holographic set-up for making the same are disclosed. The method, which can be easily automated, allows to produce arbitrary phase shift in holographically recorded gratings with high precision. In a preferred embodiment, the phase is controlled by a fringe locking system with a movable locking detector and a phase measuring device such as a camera for example, thereby allowing to provide a real-time phase locking and a real-time calibration of the set-up.

Abstract translation: 公开了一种用于制造具有相移区域的复合光栅掩模和用于制造其的全息设备的方法。 该方法可以容易地自动化，可以在高精度的全息记录光栅中产生任意的相移。 在优选实施例中，该相位由具有可移动锁定检测器和相位测量装置（例如相机）的边缘锁定系统控制，从而允许提供该组的实时相位锁定和实时校准 -向上。

公开(公告)号：US12040597B2

公开(公告)日：2024-07-16

申请号：US17384135

申请日：2021-07-23

Applicant: TeraXion Inc.

Inventor： Sylvain Boudreau ,  Keven Bédard ,  Michel Morin ,  François Costin ,  André Babin ,  Simon Ayotte

IPC: H01S5/32 ,  H01S5/065 ,  H01S5/125

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.

公开(公告)号：US20200333529A1

公开(公告)日：2020-10-22

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.