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：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：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.

公开(公告)号：US20190339446A1

公开(公告)日：2019-11-07

申请号：US16515132

申请日：2019-07-18

Applicant: TERAXION INC.

Inventor： Guillaume BROCHU ,  Michel MORIN ,  Françios 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.