CN103631064B - A kind of optical fiber internal stress regulates stretching device - Google Patents
A kind of optical fiber internal stress regulates stretching device Download PDFInfo
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- CN103631064B CN103631064B CN201310668060.6A CN201310668060A CN103631064B CN 103631064 B CN103631064 B CN 103631064B CN 201310668060 A CN201310668060 A CN 201310668060A CN 103631064 B CN103631064 B CN 103631064B
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Abstract
The invention provides a kind of optical fiber internal stress and regulate stretching device, the fiber-draw dish in described stretching device is positioned on stretching base, is connected by dovetail slideway; Be wound around along fiber-draw dish " vortex-like wire casing " after optical fiber optical fiber jacket is wrapped up, and it is fastening by it to install cooling pressing plate thereon, cooling pressing plate attaches semiconductor chilling plate, cooling heat dissipation is carried out to optical fiber; Drawing godet expansion set and fiber-draw dish are all connected and fixed on drawing godet base by combination adjusting bolt; When regulating combination adjusting bolt, " dovetail slideway " of fiber-draw rim drawing godet base does radial movement, fiber lengths is stretched 1% ~ 3%, its internal stress is redistributed, effectively inhibits the non-linear benefit in optical fiber.
Description
Technical field
The invention belongs to fiber laser field.Be mainly used in placing optical fiber and suppressing the non-linear benefit in optical fiber.
Background technology
Due to the stimulated Brillouin scattering (StimulatedBrillouinScattering of optical fiber in fiber laser and optical fiber passive transmission apparatus, the nonlinear effect such as SBS), make Output optical power be transferred to back scattering Brillouin light in a large number, cause and export energy loss even fiber laser optical fiber passive transmission apparatus damage.This nonlinear effect shows particularly evident in narrow linewidth (single-frequency) situation, is the principal element of restriction single frequency optical fiber laser power ascension.
There is minimum bending radius in optical fiber in addition, can not arbitrarily bend.And because the luminous power of gain fibre carrying is higher, the contact protection between the heat radiation of optical fiber and optical fiber is all the significant consideration in fiber laser design.
Summary of the invention
In order to suppress the non-linear benefit in optical fiber, solve the contact protection between the heat radiation of optical fiber and optical fiber, the invention provides a kind of optical fiber internal stress and regulating stretching device.
Optical fiber internal stress of the present invention regulates stretching device to comprise: drawing godet expansion set, fiber-draw dish, drawing godet base, semiconductor chilling plate, cooling pressing plate, regulating spring, combination adjusting bolt, optical fiber jacket.
Optical fiber internal stress of the present invention regulates stretching device, and be characterized in, described stretching device contains: drawing godet expansion set, fiber-draw dish, drawing godet base, semiconductor chilling plate, cooling pressing plate, regulating spring, combination adjusting bolt, optical fiber jacket;
Fiber-draw dish is positioned on stretching base, is connected by dovetail slideway; Be wound around along fiber-draw dish " vortex-like wire casing " after optical fiber optical fiber jacket is wrapped up, and it is fastening by it to install cooling pressing plate thereon, cooling pressing plate attaches semiconductor chilling plate, cooling heat dissipation is carried out to optical fiber; Drawing godet expansion set, regulating spring and fiber-draw dish are all connected and fixed on drawing godet base by combination adjusting bolt; Drawing godet expansion set periphery is circular conical surface, and coordinate with fiber-draw dish, centre is processed with bolt hole, and combination adjusting bolt is passed from bolt hole.
Be processed with circular conical surface in the middle of described fiber-draw dish, coordinate with drawing godet expansion set; On fiber-draw dish, plane machining has " vortex-like wire casing ", and the optical fiber be wrapped in optical fiber jacket is wound in " vortex-like wire casing "; The bottom surface of fiber-draw dish is processed with " swallow-tail form guide groove ", matches with " dovetail slideway " of drawing godet base; Six lobes are cut into after fiber-draw dish overall processing.
On described fiber-draw dish, " vortex-like wire casing " employing " helix groove " of plane machining substitutes: try to get to the heart of a matter " swallow-tail form guide groove " employings " trapezoidal guide groove " in face of fiber-draw is alternative; On drawing godet base, " dovetail slideway " of plane is six.
Described optical fiber jacket adopts Copper Foil or aluminium foil to process.
The technical solution used in the present invention utilizes stress gradient to realize fiber nonlinear effect to suppress.When regulating combination adjusting bolt, " dovetail slideway " of fiber-draw rim drawing godet base does radial movement, is stretched by fiber lengths, its internal stress is redistributed, effectively inhibits the non-linear benefit in optical fiber.
Accompanying drawing explanation
Fig. 1 is the cut-open view that optical fiber internal stress of the present invention regulates stretching device;
Fig. 2 is the outside drawing that optical fiber internal stress of the present invention regulates stretching device;
Fig. 3 is drawing godet expansion set outside drawing of the present invention;
Fig. 4 is fiber-draw dish outside drawing of the present invention;
Fig. 5 is drawing godet base outside drawing of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
A kind of optical fiber internal stress that the present invention proposes regulates stretching device, comprising: drawing godet expansion set 1, fiber-draw dish 2, drawing godet base 3, semiconductor chilling plate 4, cooling pressing plate 5, regulating spring 6, combination adjusting bolt 7, optical fiber jacket 8.
Fiber-draw dish 2 is positioned on stretching base 3, is connected by dovetail slideway; Be wound around along fiber-draw dish 2 " vortex-like wire casing " after optical fiber optical fiber jacket 8 is wrapped up, and it is fastening by it to install cooling pressing plate 5 thereon, cooling pressing plate attaches semiconductor chilling plate 4, cooling heat dissipation is carried out to optical fiber; Drawing godet expansion set 1, regulating spring 6 and fiber-draw dish 2 all pass through combination adjusting bolt 7 and are connected and fixed on drawing godet base 3; When regulating combination adjusting bolt 7, fiber-draw dish 2 does radial movement along " dovetail slideway " of drawing godet base 3, fiber lengths is stretched 1% ~ 3%, its internal stress is redistributed, effectively inhibits the non-linear benefit in optical fiber.
Drawing godet expansion set 1 periphery is processed with circular conical surface, and coordinate with fiber-draw dish 2, centre is processed with bolt hole, and combination adjusting bolt 7 is passed from bolt hole.
Be processed with circular conical surface in the middle of fiber-draw dish 2 of the present invention, coordinate with drawing godet expansion set 1; Upper plane machining has " vortex-like wire casing ", and the optical fiber be wrapped in optical fiber jacket 8 is wound in " vortex-like wire casing "; The bottom surface of fiber-draw dish 2 is processed with " swallow-tail form guide groove ", matches with " dovetail slideway " of drawing godet base 3; Six lobes are cut into after fiber-draw dish 2 overall processing.
On drawing godet base 3 of the present invention, plane machining has six " dovetail slideways ", matches with " the swallow-tail form guide groove " of fiber-draw dish 2; Be processed with bolt hole in the middle of drawing godet base 3, combination adjusting bolt 7 is fixed in bolt hole.
Being bonded as one with cooling pressing plate 5 bottom semiconductor chilling plate 4, is optical fiber refrigeration for passing through cooling pressing plate 5.
Cooling pressing plate 5 screw and fiber-draw dish 2 are fixed as one, and top and semiconductor chilling plate 4 are bonded as one, and the optical fiber be wrapped in optical fiber jacket 8 is pressed in " the vortex-like wire casing " of fiber-draw dish 2 by cooling pressing plate 5.
Optical fibre packages is wrapped in optical fiber jacket 8 by optical fiber jacket 8; optical fiber jacket 8 processes with heat conductivility and all splendid Copper Foil of ductility; heat in optical fiber can be derived rapidly by optical fiber jacket 8, protects again optical fiber surface simultaneously and do not suffer a loss in drawing process.
Claims (4)
1. optical fiber internal stress regulates a stretching device, it is characterized in that: described stretching device contains: drawing godet expansion set (1), fiber-draw dish (2), drawing godet base (3), semiconductor chilling plate (4), cooling pressing plate (5), regulating spring (6), combination adjusting bolt (7), optical fiber jacket (8);
Fiber-draw dish (2) is positioned on drawing godet base (3), is connected by dovetail slideway; Be wound around along the vortex-like wire casing of fiber-draw dish (2) after optical fiber optical fiber jacket (8) is wrapped up, and installation cooling pressing plate (5) is fastening by it thereon, cooling pressing plate attaches semiconductor chilling plate (4), cooling heat dissipation is carried out to optical fiber; Drawing godet expansion set (1), regulating spring (6) and fiber-draw dish (2) all pass through combination adjusting bolt (7) and are connected and fixed on drawing godet base (3); Drawing godet expansion set (1) periphery is circular conical surface, and coordinate with fiber-draw dish, centre is processed with bolt hole, and combination adjusting bolt (7) is passed from bolt hole.
2. optical fiber internal stress according to claim 1 regulates stretching device, it is characterized in that: be processed with circular conical surface in the middle of described fiber-draw dish (2), coordinate with drawing godet expansion set (1); The upper plane machining of fiber-draw dish (2) has vortex-like wire casing, and the optical fiber be wrapped in optical fiber jacket (8) is wound in vortex-like wire casing; The bottom surface of fiber-draw dish (2) is processed with swallow-tail form guide groove, matches with the dovetail slideway of drawing godet base (3); Six lobes are cut into after fiber-draw dish (2) overall processing.
3. optical fiber internal stress according to claim 1 regulates stretching device, it is characterized in that: the vortex-like wire casing of the upper plane machining of fiber-draw dish (2) adopts helix groove to substitute: the swallow-tail form guide groove of fiber-draw dish (2) bottom surface adopts trapezoidal guide groove to substitute; The dovetail slideway of the upper plane of drawing godet base (3) is six.
4. optical fiber internal stress according to claim 1 regulates stretching device, it is characterized in that: described optical fiber jacket (8) adopts Copper Foil or aluminium foil to process.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310668060.6A CN103631064B (en) | 2014-01-09 | 2014-01-09 | A kind of optical fiber internal stress regulates stretching device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310668060.6A CN103631064B (en) | 2014-01-09 | 2014-01-09 | A kind of optical fiber internal stress regulates stretching device |
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| CN103631064A CN103631064A (en) | 2014-03-12 |
| CN103631064B true CN103631064B (en) | 2016-03-09 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846295A (en) * | 2016-05-20 | 2016-08-10 | 南方科技大学 | Fiber reel device |
| CN106338302B (en) * | 2016-08-22 | 2019-03-12 | 同济大学 | A kind of contact condition monitoring device |
| CN112490831A (en) * | 2020-11-20 | 2021-03-12 | 北方激光研究院有限公司 | Optical fiber stress long-term maintaining device |
| CN115395359B (en) * | 2022-10-28 | 2023-03-10 | 中国航天三江集团有限公司 | Method and device for inhibiting optical fiber SBS (styrene butadiene styrene) effect |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213434A (en) * | 1996-03-27 | 1999-04-07 | 明尼苏达矿业和制造公司 | Method for connecting optical fibers and the interconnection |
| US6276215B1 (en) * | 1997-12-05 | 2001-08-21 | Optoplan As | Sensor for measuring strain |
| CN101245988A (en) * | 2008-03-24 | 2008-08-20 | 哈尔滨工业大学 | Pre-stress damage monitoring method based on optical fiber Brillouin full-dimension sensing |
| CN101915594A (en) * | 2010-08-10 | 2010-12-15 | 重庆大学 | Glue-free connection method for optical fiber stress/strain sensing devices |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5371527B2 (en) * | 2009-04-16 | 2013-12-18 | 株式会社安藤・間 | Civil engineering pressure transducer |
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2014
- 2014-01-09 CN CN201310668060.6A patent/CN103631064B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213434A (en) * | 1996-03-27 | 1999-04-07 | 明尼苏达矿业和制造公司 | Method for connecting optical fibers and the interconnection |
| US6276215B1 (en) * | 1997-12-05 | 2001-08-21 | Optoplan As | Sensor for measuring strain |
| CN101245988A (en) * | 2008-03-24 | 2008-08-20 | 哈尔滨工业大学 | Pre-stress damage monitoring method based on optical fiber Brillouin full-dimension sensing |
| CN101915594A (en) * | 2010-08-10 | 2010-12-15 | 重庆大学 | Glue-free connection method for optical fiber stress/strain sensing devices |
Non-Patent Citations (1)
| Title |
|---|
| 基于Brillouin散射的分布式光纤拉伸应变传感器的理论分析;黄民双等;《光电工程》;19950831;第22卷(第4期);全文 * |
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| CN103631064A (en) | 2014-03-12 |
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Effective date of registration: 20210402 Address after: 621000 building 31, No.7, Section 2, Xianren Road, Youxian District, Mianyang City, Sichuan Province Patentee after: China Ordnance Equipment Group Automation Research Institute Co.,Ltd. Address before: 621000 Mianyang province Sichuan City Youxian District Road No. 7 two immortals Patentee before: SICHUAN MIANYANG SOUTHWEST AUTOMATION INSTITUTE |
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