CH683950A5 - Fabrication of monomode optical fibre coil - forming helical grooves on cylindrical support, with grooves comprising sinusoidal form in which optical fibre is located - Google Patents
Fabrication of monomode optical fibre coil - forming helical grooves on cylindrical support, with grooves comprising sinusoidal form in which optical fibre is located Download PDFInfo
- Publication number
- CH683950A5 CH683950A5 CH998/91A CH99891A CH683950A5 CH 683950 A5 CH683950 A5 CH 683950A5 CH 998/91 A CH998/91 A CH 998/91A CH 99891 A CH99891 A CH 99891A CH 683950 A5 CH683950 A5 CH 683950A5
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- CH
- Switzerland
- Prior art keywords
- optical fiber
- mode optical
- groove
- cylinder
- optical fibre
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/24—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices
- G01R15/245—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect
- G01R15/246—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-modulating devices using magneto-optical modulators, e.g. based on the Faraday or Cotton-Mouton effect based on the Faraday, i.e. linear magneto-optic, effect
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4457—Bobbins; Reels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
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CH 683 950 A5 CH 683 950 A5
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Description Description
La présente invention se rapporte aux procédés de réalisation de bobine optique en général et concerne plus particulièrement un procédé de réalisation d'une bobine optique monomode, la bobine ainsi obtenue et l'utilisation de cette bobine. The present invention relates to optical coil production methods in general and relates more particularly to a method of producing a single-mode optical coil, the coil thus obtained and the use of this coil.
Les bobines à fibre optique de l'art antérieur (brevets allemands P 2 541 072, P 2 543 134 et P 2 548 278) sont généralement des bobines am-pèremétriques à fibre optique monomode utilisant l'effet Faraday.- Ces bobines réalisées sur des supports de formes complexes, font appels à des procédés de réalisation longs, difficiles à mettre en oeuvre et coûteux. The fiber optic coils of the prior art (German patents P 2,541,072, P 2,543,134 and P 2,548,278) are generally am-perimetric coils with single-mode optical fiber using the Faraday effect. supports of complex shapes, call for long production methods, difficult to implement and expensive.
La présente invention a pour but un procédé de réalisation de bobine optique monomode simple et peu onéreux. The object of the present invention is to provide a simple and inexpensive single-mode optical coil production method.
Selon une caractéristique de l'invention, le procédé de réalisation d'une bobine à fibre optique monomode, comporte les étapes suivantes: According to a characteristic of the invention, the method for producing a single-mode optical fiber coil comprises the following steps:
- réalisation, sur un support cylindrique en matériau isolant et amagnétique, d'un sillon présentant une ondulation par rapport à une direction hélicoïdale, ladite ondulation se présentant sous la forme d'arcs de cercle de rayon égal au rayon extérieur du cylindre et d'orientations successives opposées, - Realization, on a cylindrical support in insulating and non-magnetic material, of a groove having an undulation relative to a helical direction, said undulation being in the form of arcs of a circle of radius equal to the outside radius of the cylinder and of opposite successive orientations,
- bobinage d'une fibre optique monomode dans le sillon et - winding of a single mode optical fiber in the groove and
- élimination de tout ou partie dudit support cylindrique. - elimination of all or part of said cylindrical support.
La réalisation des sillons sur un support cylindrique peut être aisément faite à l'aide d'une machine d'usinage à commande numérique. The production of grooves on a cylindrical support can be easily done using a numerically controlled machining machine.
Le bobinage peut être automatisé et effectué par réglage en continu de la tension appliquée à la fibre optique de manière à minimiser les contraintes appliquées sur la fibre. The winding can be automated and carried out by continuously adjusting the voltage applied to the optical fiber so as to minimize the stresses applied to the fiber.
Selon une autre caractéristique du procédé, la fibre optique monomode est disposée dans un tube monté sans jeu dans le sillon. According to another characteristic of the process, the single-mode optical fiber is arranged in a tube mounted without play in the groove.
Un avantage de cette caractéristique est d'éviter que la fibre optique ne présente une biréfringence de magnitude et d'orientation incontrôlable. An advantage of this characteristic is to prevent the optical fiber from exhibiting a birefringence of uncontrollable magnitude and orientation.
L'invention porte également sur une bobine à fibre optique monomode obtenue selon le procédé ci-dessus. The invention also relates to a single-mode optical fiber coil obtained according to the above method.
Selon une caractéristique de cette invention, la bobine à fibre optique monomode se caractérise en ce qu'en chacun des points le long du sillon, la fibre optique est soumise à une composition de deux courbures dans deux plans orthogonaux, le plan transverse, perpendiculaire à l'axe du cylindre, contenant la courbure de l'enroulement, et le plan tangent au cylindre, contenant la courbure de l'ondulation, ondulation selon des arcs de cercle de rayon égal au rayon extérieur du cylindre et d'orientations successives opposées. According to a characteristic of this invention, the single-mode optical fiber coil is characterized in that at each point along the groove, the optical fiber is subjected to a composition of two curvatures in two orthogonal planes, the transverse plane, perpendicular to the axis of the cylinder, containing the curvature of the winding, and the plane tangent to the cylinder, containing the curvature of the corrugation, undulation according to arcs of a circle of radius equal to the external radius of the cylinder and of successive opposite orientations.
Un avantage de cette caractéristique est l'obtention d'un milieu de propagation compensé en chaque point et donc non biréfringent. La compensation de la biréfringence par courbure étant un effet purement topologique, elle est donc indépendante de la longueur d'onde. An advantage of this characteristic is the obtaining of a propagation medium compensated at each point and therefore not birefringent. Since the birefringence compensation by curvature is a purely topological effect, it is therefore independent of the wavelength.
L'invention porte également sur l'utilisation de la bobine à fibre optique monomode pour la compensation de la biréfringence de courbure de la fibre bobinée sur le cylindre, d'une part, et, d'autre part, sur l'utilisation de la bobine à fibre optique monomode pour la mesure du courant électrique se propageant dans la partie creuse du cylindre. The invention also relates to the use of the single-mode optical fiber coil for compensating for the birefringence of curvature of the fiber wound on the cylinder, on the one hand, and, on the other hand, to the use of the single-mode optical fiber coil for measuring the electric current propagating in the hollow part of the cylinder.
Dans le cas d'une bobine ampèremétrique à fibre optique utilisant l'effet Faraday, la rotation de la polarisation est indépendante de la position du conducteur dans le sillon. In the case of a fiber optic ammeter coil using the Faraday effect, the rotation of the polarization is independent of the position of the conductor in the groove.
D'autres buts, caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description suivante d'un procédé de réalisation d'une bobine optique monomode, d'une bobine obtenue par ce procédé et de l'utilisation de cette bobine, ladite description étant faite à titre purement illustratif et en relation avec les dessins joints dans lesquels: Other objects, characteristics and advantages of the present invention will appear more clearly on reading the following description of a method for producing a single-mode optical coil, a coil obtained by this method and the use of this reel, said description being given purely by way of illustration and in relation to the accompanying drawings in which:
La fig. 1 montre une bobine optique monomode réalisée selon le procédé conforme à l'invention. Fig. 1 shows a single mode optical coil produced according to the method according to the invention.
Le procédé de réalisation d'une bobine à fibre optique monomode, comporte les étapes suivantes: The method for producing a single-mode optical fiber coil comprises the following steps:
- réalisation, sur un support cylindrique en matériau isolant et amagnétique, d'un sillon présentant une ondulation par rapport à une direction hélicoïdale, ladite ondulation se présentant sous la forme d'arcs de cercle de rayon égal au rayon extérieur du cylindre et d'orientations successives opposées, - Realization, on a cylindrical support in insulating and non-magnetic material, of a groove having an undulation relative to a helical direction, said undulation being in the form of arcs of a circle of radius equal to the outside radius of the cylinder and of opposite successive orientations,
- bobinage d'une fibre optique monomode dans le sillon et - winding of a single mode optical fiber in the groove and
- élimination de tout ou partie dudit support cylindrique. - elimination of all or part of said cylindrical support.
La fibre optique monomode peut avantageusement être disposée dans un tube, celui-ci étant monté sans jeu dans le sillon. The single-mode optical fiber can advantageously be placed in a tube, the latter being mounted without play in the groove.
La bobine à fibre optique monomode 1 obtenue par le procédé décrit ci-dessus est représentée à la fig. 1. La bobine se compose d'un support cylindrique 2, d'un sillon hélicoïdal 3 dans lequel est disposée une fibre optique monomode 4. Le sillon hélicoïdal est par exemple en forme de V ou de U. The single-mode optical fiber coil 1 obtained by the method described above is shown in FIG. 1. The coil consists of a cylindrical support 2, a helical groove 3 in which is arranged a single-mode optical fiber 4. The helical groove is for example in the form of V or U.
La bobine à fibre optique monomode est telle qu'en chacun des points le long du sillon, la fibre optique est soumise à une composition de deux courbures dans deux plans orthogonaux, le plan transverse, perpendiculaire à l'axe du cylindre, contenant la courbure de l'enroulement, et le plan tangent au cylindre, contenant la courbure de l'ondulation, ondulation selon des arcs de cercle de rayon égal au rayon extérieur du cylindre et d'orientations successives opposées. The single-mode optical fiber coil is such that at each point along the groove, the optical fiber is subjected to a composition of two curvatures in two orthogonal planes, the transverse plane, perpendicular to the axis of the cylinder, containing the curvature of the winding, and the plane tangent to the cylinder, containing the curvature of the corrugation, undulation according to arcs of a circle of radius equal to the outside radius of the cylinder and of successive opposite orientations.
De façon préférentielle, la bobine à fibre optique monomode obtenue selon le procédé de l'invention est utilisée pour la compensation de la biréfringence de courbure de la fibre bobinée sur le cylindre. Preferably, the single-mode optical fiber coil obtained according to the method of the invention is used for compensation of the birefringence of curvature of the fiber wound on the cylinder.
La bobine à fibre optique monomode obtenue selon le procédé de l'invention est encore utilisée pour la mesure du courant électrique se propageant dans un conducteur. Dans cette utilisation le support cylindrique a une partie creuse dans laquelle est disposé le conducteur de manière à ce que leurs axes soient coaxiaux. The single-mode optical fiber coil obtained according to the method of the invention is also used for measuring the electric current propagating in a conductor. In this use the cylindrical support has a hollow part in which the conductor is arranged so that their axes are coaxial.
La bobine à fibre optique monomode obtenue selon le procédé de l'invention est encore utilisée comme ligne à retard. The single-mode optical fiber coil obtained according to the method of the invention is also used as a delay line.
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CH 683 950 A5 CH 683 950 A5
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH998/91A CH683950A5 (en) | 1991-04-04 | 1991-04-04 | Fabrication of monomode optical fibre coil - forming helical grooves on cylindrical support, with grooves comprising sinusoidal form in which optical fibre is located |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH998/91A CH683950A5 (en) | 1991-04-04 | 1991-04-04 | Fabrication of monomode optical fibre coil - forming helical grooves on cylindrical support, with grooves comprising sinusoidal form in which optical fibre is located |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH683950A5 true CH683950A5 (en) | 1994-06-15 |
Family
ID=4200071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH998/91A CH683950A5 (en) | 1991-04-04 | 1991-04-04 | Fabrication of monomode optical fibre coil - forming helical grooves on cylindrical support, with grooves comprising sinusoidal form in which optical fibre is located |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH683950A5 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7400812B2 (en) | 2003-09-25 | 2008-07-15 | Nufern | Apparatus and methods for accommodating loops of optical fiber |
| WO2009040465A2 (en) * | 2007-09-28 | 2009-04-02 | Corelase Oy | An optical amplifier |
| CN103746275A (en) * | 2014-01-26 | 2014-04-23 | 江苏天元激光科技有限公司 | Active optical fiber winding device and optical fiber winding method for optical fiber laser |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2231021A1 (en) * | 1973-05-23 | 1974-12-20 | Pirelli | |
| FR2324009A1 (en) * | 1975-09-15 | 1977-04-08 | Siemens Ag | MAGNETO-OPTICAL MEASUREMENT TRANSFORMER FOR HIGH VOLTAGE CURRENTS |
| FR2325939A1 (en) * | 1975-09-26 | 1977-04-22 | Siemens Ag | MAGNETO-OPTICAL TRANSFORMER FOR MEASURING HIGH VOLTAGE CURRENTS |
| DE2548278A1 (en) * | 1975-10-28 | 1977-05-05 | Siemens Ag | Magneto:optical current measurement transducer - uses polarisation plane rotation to avoid shape birefringence from angled photoconductor coil |
| FR2570836A1 (en) * | 1984-09-21 | 1986-03-28 | Thomson Csf | CIRCULATING OPTICAL DELAY LINE DEVICE |
| US4746080A (en) * | 1987-03-31 | 1988-05-24 | The Boeing Company | Method of winding optical fiber on a bobbin |
| EP0342663A2 (en) * | 1988-05-19 | 1989-11-23 | Alcatel Kabel AG & Co. | Bobbin produced with a lightwave guide cable |
-
1991
- 1991-04-04 CH CH998/91A patent/CH683950A5/en not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2231021A1 (en) * | 1973-05-23 | 1974-12-20 | Pirelli | |
| FR2324009A1 (en) * | 1975-09-15 | 1977-04-08 | Siemens Ag | MAGNETO-OPTICAL MEASUREMENT TRANSFORMER FOR HIGH VOLTAGE CURRENTS |
| FR2325939A1 (en) * | 1975-09-26 | 1977-04-22 | Siemens Ag | MAGNETO-OPTICAL TRANSFORMER FOR MEASURING HIGH VOLTAGE CURRENTS |
| DE2548278A1 (en) * | 1975-10-28 | 1977-05-05 | Siemens Ag | Magneto:optical current measurement transducer - uses polarisation plane rotation to avoid shape birefringence from angled photoconductor coil |
| FR2570836A1 (en) * | 1984-09-21 | 1986-03-28 | Thomson Csf | CIRCULATING OPTICAL DELAY LINE DEVICE |
| US4746080A (en) * | 1987-03-31 | 1988-05-24 | The Boeing Company | Method of winding optical fiber on a bobbin |
| EP0342663A2 (en) * | 1988-05-19 | 1989-11-23 | Alcatel Kabel AG & Co. | Bobbin produced with a lightwave guide cable |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7400812B2 (en) | 2003-09-25 | 2008-07-15 | Nufern | Apparatus and methods for accommodating loops of optical fiber |
| WO2009040465A2 (en) * | 2007-09-28 | 2009-04-02 | Corelase Oy | An optical amplifier |
| WO2009040465A3 (en) * | 2007-09-28 | 2009-08-20 | Corelase Oy | An optical amplifier |
| CN103746275A (en) * | 2014-01-26 | 2014-04-23 | 江苏天元激光科技有限公司 | Active optical fiber winding device and optical fiber winding method for optical fiber laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUE | Assignment |
Owner name: FIMY LIMITED |
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| PL | Patent ceased |