CN104977674A - High-power flexible optical cable and manufacture method - Google Patents
High-power flexible optical cable and manufacture method Download PDFInfo
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- CN104977674A CN104977674A CN201510401113.7A CN201510401113A CN104977674A CN 104977674 A CN104977674 A CN 104977674A CN 201510401113 A CN201510401113 A CN 201510401113A CN 104977674 A CN104977674 A CN 104977674A
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- heat radiation
- pipe
- optical cable
- outer tube
- described heat
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- 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
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- 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
- G02B6/4471—Terminating devices ; Cable clamps
- G02B6/4478—Bending relief means
-
- 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
- G02B6/4479—Manufacturing methods of optical cables
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention relates to laser fibers, and provides a high-power flexible optical cable which comprises a fiber core and an inner wrapping layer wrapped outside the fiber core. The high-power flexible optical cable further comprises an outer heat radiation pipe and an inner heat radiation pipe in the outer heat radiation pipe, wherein the outer heat radiation pipe and the inner heat radiation pipe are made of high-molecular flexible material, the inner wrapping layer and the fiber core are arranged in inner heat radiation pipe and attached to each other, and a gap is arranged between the outer heat radiation pipe and the inner heat radiation pipe and filled with phase transition material. The invention further provides a method for manufacturing the high-power flexible optical cable to form the optical fiber. A bi-layer structure of an outer heat radiation pipe and an inner heat radiation pipe is arranged outside the inner wrapping layer, and the gap between the outer heat radiation pipe and an inner heat radiation pipe is filled with phase transition material. In this way, the optical cable is flexible, and is convenient for installation and use, and excellent in heat radiation performance. The high-power flexible optical cable is applicable to a high-power laser, and the high-power flexible optical cable can be formed through the method. The high-power flexible optical cable is easy to form and high in precision.
Description
Technical field
The present invention relates to laser fiber, particularly relate to a kind of high power flexible optical cable and manufacture method.
Background technology
Optical fiber is in a kind of fiber causing light to be made at glass or plastics, and with the light conduction instrument of total reflection principle transmission, the cable comprising optical fiber is called optical cable.The emitter of one end of usual optical fiber uses light-emittingdiode or beam of laser that light pulse is sent to optical fiber, and the receiving trap of the other end of optical fiber uses light activated element to detect pulse.But along with the development of modern project technology, optical fiber is not only only used for carrying out signal transmission.The laser of various high strength also starts to utilize optical fiber to transmit, and such as nanosecond laser or femto-second laser all need to utilize energy-transmission optic fibre to transmit.But this has higher requirement also to making optical cable, higher power means higher heating, the efficiency of Modern high power fiber laser is generally between 75%-85%, the fiber laser of one 1 kilowatt, the heat of 200-350 watt is had to exist in doping light inside, if optical fiber radiating efficiency is low, when doped fiber internal heat is accumulated to a certain degree, can there is fibre core and melt in doped fiber.
At present, the patents such as CN104037598A " a kind of high-power fiber high efficiency cooling method " CN204103233U " the even temperature coldplate in high-capacity optical fiber laser microchannel " CN101373882A " integral refrigerating device for barrel-type optical fiber " have been had about the cooling of high power optical cable.These patents are all utilize to increase a set of extra device outward at optical fiber and carry out radiating and cooling to optical fiber, because the extra means increased is all that the metal material utilizing rigidity large makes, lack flexible, under whole fibre circuit can only remain on same attitude, seriously like this hamper the erection of optical fiber on telecontrol equipment, cannot cooling optical fibers when also making the device work needing optical fiber servo-actuated.
Summary of the invention
The object of the present invention is to provide a kind of high power flexible optical cable, the flexibility and heat dispersion be intended to for solving existing optical cable is difficult to compatible problem.
The present invention is achieved in that
The invention provides a kind of high power flexible optical cable, comprise fibre core and be wrapped in the inner cladding outside described fibre core, also comprise heat radiation outer tube and be positioned at the heat radiation pipe of described heat radiation outer tube, in described heat radiation outer tube and described heat radiation, pipe is made by macromolecule flexible material, described inner cladding and described fibre core to be all arranged in described heat radiation in pipe and both laminatings, between pipe, there is gap in described heat radiation outer tube and described heat radiation, and be filled with phase-change material in described gap.
Further, in described gap, be provided with the some supporting walls connecting pipe in described heat radiation outer tube and described heat radiation, described separated is some cavitys by each described supporting walls, and described phase-change material is filled in each described cavity.
Particularly, each described supporting walls all extends along pipe in described heat radiation with the length direction of described heat radiation outer tube, and each described supporting walls uniform intervals is arranged.
Further, cavity described in each is gradually-reducing shape along the direction of pipe in described heat radiation outer tube extremely described heat radiation.
Further, described heat radiation outer tube, pipe and each described supporting walls is all one-body molded makes in described heat radiation.
Further, in described heat radiation outer tube and described heat radiation pipe macromolecular material in be all added with Graphene or boron nitride.
Further, in described fibre core, described inner cladding and described heat radiation, the refractive index of the inwall of pipe reduces successively.
The present invention also provides a kind of method for making of high power flexible optical cable, comprises following making step:
Adopting plasma vapor phase deposition to prepare preform, is fibre core by described optical fiber preform bar stretching;
On the fibre core outside surface of described preparation, adopt coating and curing technology to fix protectiveness material form inner cladding;
Once extrude in the outside of described inner cladding or stretch and form pipe in heat radiation, secondary extrusion or the formation heat radiation outer tube that stretches, be filled with phase-change material between pipe and described heat radiation outer tube in described heat radiation.
Particularly, the described preform after preparation under the effect of wire drawing dish successively through heating with curing molding described in fibre core.
Further, when preparing fibre core, in moulding material, be added with rare earth element.
The present invention has following beneficial effect:
Optical cable of the present invention, double-layer structure is had in the arranged outside of fibre core and inner cladding, be respectively pipe and heat radiation outer tube in heat radiation, both all adopt macromolecule flexible material to make, not only there is certain heat dispersion, and make the flexibility of optical cable stronger, thus the installation erection of optical cable in application process can be facilitated, phase-change material is filled with in gap in addition in heat radiation outer tube and heat radiation between pipe, when optical cable works, fibre core and the interior heat produced of inner cladding can be passed to phase-change material via the interior pipe that dispels the heat, and phase-change material absorbs heat by phase transformation, and then the effect of heat radiation can be played, certainly partial heat is also had can be passed to heat radiation outer tube through phase-change material, the external world is distributed to by heat radiation outer tube, to this optical cable provided by the invention, not only there is the convenient installation of higher flexibility, heat dispersion is also very good simultaneously, effectively can transmit high power laser light, and by method for making provided by the invention, then can shaping above-mentioned optical cable, convenient formation, making precision is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the high power flexible optical cable that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is that the laser beam of the high power flexible optical cable of Fig. 1 and pump light transmit schematic diagram;
Fig. 3 is high power flexible optical cable and the laser head installing structure schematic diagram of Fig. 1;
Fig. 4 is the high power flexible optical cable of Fig. 1 is the structural representation that coiled pipe arranges.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1-Fig. 3, the embodiment of the present invention provides a kind of high power flexible optical cable, can be applied in high power laser light, such as in nanosecond laser and femto-second laser, it includes fibre core 11 and inner cladding 12, inner cladding 12 is wrapped in the outside of fibre core 11, fibre core 11 is mainly used in transfer laser bundle 111, and inner cladding 12 adopts the materials such as glass to make usually, be mainly used in transmitting pump light 121, under the effect of pump light 121, very easily high power density is formed in fibre core 11, cause the laser levels " population inversion " of working-laser material, just laser generation output can be formed when suitably adding positive feedback loop (formation resonator cavity), inner cladding 12 not only has fire prevention, the characteristic of waterproof and high thermal conductivity, yet possesses certain flexibility and toughness, and coordinate to be formed with fibre core 11 and be totally reflected, optical cable 1 also includes heat radiation outer tube 13 and pipe 14 in heat radiation, inner cladding 12 is positioned at heat radiation pipe 14, in heat radiation, pipe 14 is then arranged in heat radiation outer tube 13, and the outside surface of inner cladding 12 is fitted with the inwall of pipe 14 in heat radiation, heat radiation outer tube 13 all adopts macromolecule flexible material to make with pipe 14 in heat radiation, namely both all have certain heat sinking function and have stronger flexibility, between the outer wall of the inwall of heat radiation outer tube 13 and the interior pipe 14 of heat radiation, there is certain gap 15, then phase-change material is filled with in this gap 15, phase-change material can be water or salt solution etc., the cooling-air of flowing can certainly be adopted replace.In the present invention, when optical cable 1 is applied in superpower laser, high-power laser beam 111 is transmitted along fibre core 11, pump light 121 is then injected by inner cladding 12 and in inner cladding 12 and the two-layer middle transmission of fibre core 11, in this transmittance process, inner cladding 12 and fibre core 11 all can produce larger heat, this heat then can be passed to phase-change material through the interior pipe 14 that dispels the heat, and then phase-change material decalescence can be caused, play thermolysis, and owing to dispelling the heat the heat conductivility of outer tube 13, partial heat is also had directly to be passed to heat radiation outer tube 13 through phase-change material and to be distributed to the external world, adopt heat radiation outer tube 13 optical cable 1 can be made to have higher heat dispersion with this fit structure of pipe 14 in heat radiation to this, the heat of savings in it can be derived fast, the laser beam 111 that can meet superpower laser is transmitted.Make because both are flexible material in addition, when optical cable 1 is installed on laser head 2, optical cable 1 can with laser head 2 synchronizing moving, no matter be arranged on by laser head 2 on robotic arm or hand-heldly carry out operation to this, all can not be subject to the worry of flexible this problem not of optical cable 1.
See Fig. 1, optimize above-described embodiment, some supporting walls 151 are provided with in gap 15 in heat radiation outer tube 13 and heat radiation between pipe 14, two opposed ends of each supporting walls 151 are connected with the inwall of heat radiation outer tube 13 and the outer wall of the interior pipe 14 that dispels the heat respectively, by each supporting walls 151, this space, gap 15 is divided into some cavitys 152, phase-change material is then filled in each cavity 152.In the present embodiment, owing to there is gap 15 between pipe 14 in heat radiation outer tube 13 and heat radiation, both can be made to be formed by each supporting walls 151 as a whole, play the effect supporting heat radiation outer tube 13, when optical cable 1 is subject to external impact, the effect of apparatus with shock absorbing can be played by the distortion of each supporting walls 151, thus ensure the stability of optical cable 1 inner structure.Additionally by each supporting walls 151 separation gap 15, all phase-change material is filled with in each cavity 152 after separation, and phase-change material can with supporting walls 151, dispel the heat outer tube 13 inwall and pipe 14 contact internal walls in dispelling the heat, effectively can increase contact area between phase-change material and optical cable 1 inner structure to this by arranging each supporting walls 151, improving the heat transference efficiency of optical cable 1.Usually, all be formed in one between heat radiation outer tube 13, the interior pipe 14 of heat radiation and each supporting walls 151 and make, namely three is an entirety, also be macromolecular material to this each supporting walls 151, there is flexible and heat transfer performance preferably, under the prerequisite that can meet optical cable 1 structural stability, ensure its heat dispersion and flexibility.
Optimize the structure of above-mentioned supporting walls 151, each supporting walls 151 all extends along the length direction of pipe 14 in heat radiation and heat radiation outer tube 13, and each supporting walls 151 uniform intervals is arranged.In the present embodiment, the radial distribution of each supporting walls 151 pipe 14 in heat radiation outer tube 13 with heat radiation, between two often adjacent supporting walls 151, the cavity 152 of sandwiched all extends along heat radiation outer tube 13 and the length direction of pipe 14 in heat radiation, for the supporting walls 151 of this structure to add man-hour more convenient, and it is also fairly simple when adding phase-change material in each cavity 152, conducting between adjacent two cavitys 152, and on heat radiation outer tube 13, be provided with the interpolation mouth and exhausr port that are communicated with a wherein cavity 152, only need add phase-change material by this interpolation mouth, can make all to be filled with phase-change material in each cavity 152.In addition because the radial direction of each supporting walls 151 pipe 14 in heat radiation outer tube 13 with heat radiation is uniformly distributed, then the heat radiation making optical cable 1 radially go up everywhere is more balanced, avoids the problem that optical cable 1 interior section regional temperature is too high.Further, each cavity 152 is gradually-reducing shape along heat radiation outer tube 13 to the direction of the interior pipe 14 of heat radiation.Because the interior pipe 14 that dispels the heat is positioned at the inner side of heat radiation outer tube 13, the inner wall area of this heat radiation outer tube 13 is greater than to the outer wall area of pipe 14 in heat radiation, adopts this tapered configuration can be conducive to increasing the volume of each cavity 152, ensure the heat dispersion of optical cable 1.
See Fig. 1 and Fig. 2, further, in heat radiation outer tube 13 with heat radiation pipe 14 macromolecular material in be added with Graphene and boron nitride.Be compound substance for making heat radiation outer tube 13 with the macromolecular material of pipe 14 in heat radiation in the present embodiment, can to adding Graphene or boron nitride in it, thus heat radiation outer tube 13 can be made all to have stronger heat conductivility with pipe 14 in heat radiation, be beneficial to optical cable 1 and dispel the heat.In addition because laser beam 111 is only transmitted in fibre core 11, pump light 121 then transmits in fibre core 11 with inner cladding 12, this is needed to fibre core 11, the refractive index of the inwall of inner cladding 12 and the interior pipe 14 of heat radiation all restricts, be specially and reduce successively along said sequence, namely when laser beam 111 reflexes to the contact position of inner cladding 12 and fibre core 11, laser beam 111 can be totally reflected in fibre core 11 by the inwall of inner cladding 12, with should pump light 121 reflex to contact position with pipe 14 in heat radiation of inner cladding 12 time, in heat radiation, this pump light 121 can be totally reflected in inner cladding 12 by the inwall of pipe 14, and can fibre core 11 be passed.The refractive index being specially fibre core 11 is about 1.93, and the refractive index of inner cladding 12 is about 1.5, and in heat radiation, the inwall refractive index of pipe 14 is about 1.1.
The embodiment of the present invention additionally provides a kind of method for making of high power flexible optical cable, mainly for the preparation of above-mentioned optical cable 1, comprises following making step:
Plasma vapor phase deposition is first adopted to prepare preform, then be fibre core 11 by this optical fiber preform bar stretching, certain rare earth element is added with preparing the preform moment in its moulding material, with increase shaping after the refractive index of fibre core 11, can about 1.93 be reached, and after moulding fiber prefabricated rods, this preform can be placed in wire-drawer-tower, vertically stretching optical fiber prefabricated rods under the draw of wire drawing dish, and first preform is heated with the fibre core 11 obtaining suitable dimension in the process stretched, then to heating after the surperficial coated with resins of fibre core 11 and adopt ultraviolet it is solidified, and then can shaping required fibre core 11,
And after fibre core 11 is shaping, can on the outside surface of fibre core 11, paint-on technique and curing technology be adopted to fix protectiveness material, and then form the inner cladding 12 of parcel fibre core 11, inner cladding 12 also adopts plasma vapor phase deposition to be coated on the outside surface of fibre core 11, then curing technology is adopted to be solidified by the inner cladding 12 be deposited on fibre core 11, the inner cladding 12 being is fixed on fibre core 11, inner cladding 12 is substantially identical with the making material of fibre core 11, all can be glass material, but because the refractive index of fibre core 11 is higher than the refractive index of inner cladding 12, then in making material, add rare earth element as adulterant,
See Fig. 1 and Fig. 4, the outside surface of shaping inner cladding 12 is formed with pipe 14 in heat radiation by once extruding or stretching, then special dies is adopted to be formed with heat radiation outer tube 13 by secondary extrusion or stretching, for special dies main and shaping after heat radiation outer tube 13 and heat radiation in gap 15 between pipe 14 relevant, such as there is in gap 15 some supporting walls 151, each supporting walls 151 structure is formed when adopting special dies make in secondary extrusion or stretch to this, in addition because each supporting walls 151 all extends along the axis of optical cable 1, thus can be extruded by pipe 14 end in the heat radiation after one-shot forming or drawing and forming dispels the heat outer tube 13 and each supporting walls 151, more convenient, in heat radiation, pipe 14 can adopt the shaping realization of the double sebific duct of hose forming machine with heat radiation the shaping of outer tube 13.Certainly, after secondary extrusion or drawing and forming heat radiation outer tube 13, phase-change material should be filled in the gap 15 of pipe 14 in heat radiation outer tube 13 and heat radiation, the heat dispersion of pipe 14 in ensureing heat radiation outer tube 13 and dispelling the heat.After filling phase-change material, can shaping above-mentioned optical cable 1, convenient formation, be applicable to make high precision optical cable 1, and shaping after optical cable 1 not only there is good flexibility, it can bend extension as coiled pipe, and then the convenient installation in various occasion, and it also has fabulous heat dispersion, be applicable to being applied in superpower laser.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a high power flexible optical cable, comprise fibre core and be wrapped in the inner cladding outside described fibre core, it is characterized in that: also comprise heat radiation outer tube and be positioned at the heat radiation pipe of described heat radiation outer tube, in described heat radiation outer tube and described heat radiation, pipe is made by macromolecule flexible material, described inner cladding and described fibre core to be all arranged in described heat radiation in pipe and both laminatings, between pipe, there is gap in described heat radiation outer tube and described heat radiation, and be filled with phase-change material in described gap.
2. high power flexible optical cable as claimed in claim 1, it is characterized in that: in described gap, be provided with the some supporting walls connecting pipe in described heat radiation outer tube and described heat radiation, described separated is some cavitys by each described supporting walls, and described phase-change material is filled in each described cavity.
3. high power flexible optical cable as claimed in claim 2, is characterized in that: each described supporting walls all extends along pipe in described heat radiation with the length direction of described heat radiation outer tube, and each described supporting walls uniform intervals is arranged.
4. high power flexible optical cable as claimed in claim 2, is characterized in that: cavity described in each is gradually-reducing shape along the direction of pipe in described heat radiation outer tube extremely described heat radiation.
5. high power flexible optical cable as claimed in claim 2, is characterized in that: pipe and each described supporting walls is all one-body molded makes in described heat radiation outer tube, described heat radiation.
6. high power flexible optical cable as claimed in claim 1, is characterized in that: in described heat radiation outer tube and described heat radiation pipe macromolecular material in be all added with Graphene or boron nitride.
7. high power flexible optical cable as claimed in claim 1, is characterized in that: in described fibre core, described inner cladding and described heat radiation, the refractive index of the inwall of pipe reduces successively.
8. a method for making for high power flexible optical cable, is characterized in that, comprises following making step:
Adopting plasma vapor phase deposition to prepare preform, is fibre core by described optical fiber preform bar stretching;
On the fibre core outside surface of described preparation, adopt coating and curing technology to fix protectiveness material form inner cladding;
Once extrude in the outside of described inner cladding or stretch and form pipe in heat radiation, secondary extrusion or the formation heat radiation outer tube that stretches, be filled with phase-change material between pipe and described heat radiation outer tube in described heat radiation.
9. method for making as claimed in claim 8, is characterized in that: the described preform after preparation under the effect of wire drawing dish successively through heating and fibre core described in curing molding.
10. method for making as claimed in claim 8, is characterized in that: when preparing fibre core, being added with rare earth element in moulding material.
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| CN201510401113.7A CN104977674B (en) | 2015-07-09 | 2015-07-09 | High power flexible optical cable and manufacture method |
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| CN201510401113.7A CN104977674B (en) | 2015-07-09 | 2015-07-09 | High power flexible optical cable and manufacture method |
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| CN104977674B CN104977674B (en) | 2016-03-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037572A (en) * | 2018-01-24 | 2018-05-15 | 苏州专创光电科技有限公司 | A kind of optical cable with temperature and stress sensing |
| CN112162370A (en) * | 2020-09-25 | 2021-01-01 | 武汉锐科光纤激光技术股份有限公司 | Laser transmission optical cable |
| CN114325989A (en) * | 2022-01-25 | 2022-04-12 | 江苏田信塑料光纤有限公司 | High-temperature-resistant optical cable and production process thereof |
| CN114911016A (en) * | 2022-05-09 | 2022-08-16 | 杭州富通通信技术股份有限公司 | Wind-resistant optical cable |
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| US6028975A (en) * | 1998-01-13 | 2000-02-22 | Sun Microsystems, Inc. | Low thermal skew fiber optic cable |
| CN101620009A (en) * | 2009-08-07 | 2010-01-06 | 山西太钢不锈钢股份有限公司 | Optical-fiber temperature measuring probe and optical cable cooling method in high-temperature environment |
| CN102902028A (en) * | 2011-07-29 | 2013-01-30 | 山西飞虹激光科技有限公司 | Energy transfer optical cable with temperature monitoring function |
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| JPS57182703A (en) * | 1981-05-06 | 1982-11-10 | Toshiba Corp | Optical fiber cable |
| US6028975A (en) * | 1998-01-13 | 2000-02-22 | Sun Microsystems, Inc. | Low thermal skew fiber optic cable |
| CN101620009A (en) * | 2009-08-07 | 2010-01-06 | 山西太钢不锈钢股份有限公司 | Optical-fiber temperature measuring probe and optical cable cooling method in high-temperature environment |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037572A (en) * | 2018-01-24 | 2018-05-15 | 苏州专创光电科技有限公司 | A kind of optical cable with temperature and stress sensing |
| CN112162370A (en) * | 2020-09-25 | 2021-01-01 | 武汉锐科光纤激光技术股份有限公司 | Laser transmission optical cable |
| CN112162370B (en) * | 2020-09-25 | 2023-03-10 | 武汉锐科光纤激光技术股份有限公司 | Laser transmission optical cable |
| CN114325989A (en) * | 2022-01-25 | 2022-04-12 | 江苏田信塑料光纤有限公司 | High-temperature-resistant optical cable and production process thereof |
| CN114911016A (en) * | 2022-05-09 | 2022-08-16 | 杭州富通通信技术股份有限公司 | Wind-resistant optical cable |
| CN114911016B (en) * | 2022-05-09 | 2024-02-02 | 杭州富通通信技术股份有限公司 | Wind-resistant optical cable |
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| CN104977674B (en) | 2016-03-16 |
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