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公开(公告)号：EP4186131A1
公开(公告)日：2023-05-31
申请号：EP21845342.1
申请日：2021-07-22
Applicant: Teraxion Inc.
Inventor： BOUDREAU, Sylvain , BEDARD, Keven , MORIN, Michel , COSTIN, Francois , BABIN, Andre , AYOTTE, Simon
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公开(公告)号：EP4305473A1
公开(公告)日：2024-01-17
申请号：EP22766027.1
申请日：2022-03-08
Applicant: Teraxion Inc.
Inventor： TREPANIER, François , BOUDREAU, Sylvain , MAILLOUX, Alain , BROCHU, Guillaume
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公开(公告)号：CA3107452A1
公开(公告)日：2022-04-16
申请号：CA3107452
申请日：2021-01-29
Applicant: TERAXION INC
Inventor： GOUIN SAMUEL , CARIGNAN CLAUDE , FAUCHER MATHIEU , TREPANIER FRANCOIS , ROUSSEAU GUY , BERNIER MARTIN , VILLENEUVE ALAIN
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：CA2971601A1
公开(公告)日：2018-07-27
申请号：CA2971601
申请日：2017-06-23
Applicant: TERAXION INC
Inventor： BROCHU GUILLAUME , MORIN MICHEL , TREPANIER FRANCOIS
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 deleterious 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：DE202013104314U1
公开(公告)日：2013-10-18
申请号：DE202013104314
申请日：2013-02-15
Applicant: TERAXION INC
Abstract: Optischer Mach-Zehnder-Modulator, umfassend: zwei optische Wellenleiter; einen Strahlenteiler, der ein optisches Eingangssignal in zwei optische Signale teilt, die sich nebeneinander entlang der optischen Wellenleiter ausbreiten; eine Reihen-Gegentakt-Wanderwellenelektrode, die zwei Signalelektroden aufweist, die sich parallel und benachbart zu den optischen Wellenleitern erstrecken, wobei die Signalelektroden ein differenzielles elektrisches Modulationssignal tragen, um eine Änderung in der relativen Phase der optischen Signale entlang der optischen Wellenleiter zu induzieren; Masseebenen, die parallel zu den Signalelektroden verlaufen und seitlich nach außen von den Signalelektroden beabstandet sind; eine gemeinsame leitende Ebene zwischen den optischen Wellenleitern, die einen Signalweg für das differenzielle elektrische Modulationssignal zwischen den Signalelektroden durch die optischen Wellenleiter bereitstellt; und ein optisches Element, das die optischen Signale, die aus den optischen Wellenleitern austreten, zu einem optischen Ausgangssignal zusammenführt.
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Patent Agency Ranking
公开(公告)号：CA2447169A1
公开(公告)日：2004-08-14
申请号：CA2447169
申请日：2003-10-28
Applicant: TERAXION INC
Inventor： LAFRANCE GHISLAIN , GREGOIRE NATHALIE , BERNARD PIERRE
Abstract: A method for manufacturing a FBG having improved performances and an annealing-trimming apparatus for making the same are provided. The trimming and the annealing steps are advantageously combined into a single process in order to efficiently fabricate complex FBG filters with improved performance. The method comprises the steps of UV-writing a FBG in an optical fiber prior to annealing-trimming characteristics of the FBG by performing the sub-steps of monitoring characteristic data of the FBG while generating a controlled complex temperature profile along the FBG with a heating means according to the characteristic data for providing an accurate controlled annealing process of the FBG, thereby providing an accurate trimming thereof.
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47.发明专利
公开(公告)号：CA2472106A1
公开(公告)日：2003-08-14
申请号：CA2472106
申请日：2003-02-06
Applicant: TERAXION INC
Inventor： PEPIN PHILIPPE , PELLETIER FRANCOIS , LACHANCE RICHARD , RUTHERS TRISTAN
Abstract: The present invention discloses practical and power efficient assemblies (1) for applying a temperature gradient to a fiber Bragg grating (5). An application of such assemblies is, for example, the active tuning of the chromatic dispersion of the grating. The temperature gradient is produced in a heat conductive element (7), with which the FBG (5) is in continuous thermal contact, by elements (9,11) controlling the temperature of the ends of the heat conductive element (7), thereby applying the temperature gradient to th e FBG. A first preferred embodiment includes a heat recirculation member (17) allowing the recirculation of heat between the two ends (29,31) of the heat conductive elongated element, thereby providing a rapid and dynamical tuning of the temperature gradient with a minimal heat loss. A second embodiment provides isolation from the surrounding environment in order to decouple the desired temperature gradient from ambient temperature fluctuations, thereby improving the control of the optical response of a fiber grating.
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公开(公告)号：CA2461527A1
公开(公告)日：2003-07-31
申请号：CA2461527
申请日：2003-01-22
Applicant: TERAXION INC
Inventor： ZWEIBACK JASON , LI HONGPU , WANG YING , ROTHENBERG JOSHUA E , SHENG YUNLONG
Abstract: The present invention is directed to a system and method for designing efficient multi-channel FBG gratings using a pre-compensated phase mask for diffracting light for side-writing the grating on an optical fiber core. A desired phase function of the FBG is generated, specifically tailored to an effective spacing between the phase mask and the optical fiber core. From th e phase function a phase mask is pre-compensated to offset diffraction effects associated with each longitudinal position of the FBG receiving light from t wo corresponding longitudinal positions of the phase mask substantially symmetrically spaced longitudinally relative to each particular longitudinal position of the FBG. The two corresponding longitudinal positions of the pha se mask are spaced longitudinally from each other by a spacing determined by th e effective spacing between the phase mask and fiber core and by the first ord er diffraction angle of light through the phase mask. The design involves Fouri er transformation and optimisation process steps for binory phase gratings.
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公开(公告)号：CA2377208A1
公开(公告)日：2003-04-09
申请号：CA2377208
申请日：2002-03-18
Applicant: TERAXION INC
Inventor： CHOTARD HELENE , MAILLOUX ALAIN , PAINCHAUD YVES
Abstract: A method and an apparatus for recording optical gratings in a photosensitive medium are provided. The invention uses a phase mask in combination with a scanning of the recording light beam. The phase mask, or alternatively the photosensitive medium, is translated along a direction parallel to the scanning of the light beam, so that the period of the recorded grating m ay be focally adjusted. To ensure a proper recording efficiency over a large range , an appropriately selected wavefront curvature is provided in the light beam. Th e method of the invention is particularly advantageous for the recording of superimposed grating components in a photosensitive medium.
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公开(公告)号：CA2431234A1
公开(公告)日：2002-08-08
申请号：CA2431234
申请日：2002-01-04
Applicant: TERAXION INC
Inventor： ROTHENBERG JOSHUA E , SHENG YUNLONG
Abstract: The invention provides masks (200) that form fiber Bragg gratings (FBGs) in optical fibers without stitching errors from re-scaling or re-positioning. T he invention feathers the pixels of the mask lines (201, 202, 203) by adding, removing, and/or displacing one or more pixels (204, 205, 206) from the edge s of the bars and spaces of the mask. The feathering of pixels will affect the FBG being written into the fiber. The feathering operates to shift the effective edge (207, 208) of the bars. This allows the achievement of much finer resolution FBGs than the pixel size of the mask.
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