CN205333909U - Coating film type covering luminous power stripper - Google Patents
Coating film type covering luminous power stripper Download PDFInfo
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- CN205333909U CN205333909U CN201521090415.9U CN201521090415U CN205333909U CN 205333909 U CN205333909 U CN 205333909U CN 201521090415 U CN201521090415 U CN 201521090415U CN 205333909 U CN205333909 U CN 205333909U
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Abstract
The utility model relates to a coating film type covering luminous power stripper belongs to fiber laser spare field, its technical scheme as follows: this coating film type covering luminous power stripper is including two cladded fiber, two cladded fiber's predetermined section strips coat and surrounding layer in order to expose the inner cladding, plate the rete that at least one deck refracting index is higher than the inner cladding on the inner cladding that two cladded fiber expose, predetermined section encapsulation behind two cladded fiber coating films is in metal heat abstractor. The utility model discloses used the coating film technique, the use power that can effectively avoid glue technology to bring restricts, does not also want complicated processing technology, has greatly simplified the production flow, and simple manufacture and cost are lower, use the energy that the good metal heat abstractor absorbed radiation of heat conductivity came out again to with forcing refrigeration technology to take away the heat rapidly, make the device keep good operating condition, can bear very high power.
Description
Technical field
This utility model relates to a kind of film-coating type cladding light power detacher, belongs to optical-fiber laser device field。
Background technology
Recent years, the maturation of large-power semiconductor laser instrument and pump technology and doped fiber, the maximum output of optical fiber laser improves year by year, the maximum output of single-mode laser alreadys more than a myriawatt, and high-capacity optical fiber laser substitutes tradition processing mode in increasing industry and civil area, is widely applied。
In the system of optical fiber laser, need first to be input in the covering of doped fiber by pump light, utilize the rare earth element in this portion of energy pumping doped fiber fiber core, in this process, due to the problem of absorption efficiency, the pump light of federation's residual fraction among covering。Further, since the existence of fusion point in optical fiber laser, the light in part fiber core also can be made to be leaked in covering, mix with pump light, thus the optical quality that whole product is overall is caused than more serious impact。What is more, and this part light can be leaked in coat due to the bending of optical fiber from covering, causes that fiber optic temperature sharply raises, thus causing optical fiber to fuse。So, peel off the leakage light in covering, the stable of fiber ring laser system and the output of high-quality light beam are had obvious practical significance and effect。
The more commonly used technology of covering power stripper has two kinds: one be optical fiber coating is divested after, being coated with the optical glue of high index of refraction on covering, the refractive index of glue is higher than optical fiber, and the luminous energy in such covering enters in glue smoothly, and do not returning covering, reach the purpose that power divests；Another kind is by the optical fiber mode by machinery or corrosion, changes the shape of covering so that the light in covering can not meet total reflection condition and leak among covering, it is also possible to reach to allow the purpose that light in covering is revealed。But all there is certain shortcoming in above two mode: the first utilizes the mode of glue, absorbs owing to glue exists serious light, so the device that power is higher can not be used in；The machining accuracy of product is desirable that very strict by the second machinery or forms of corrosion, and owing to required precision is very high in actual production process, production cost and yield rate all can not be controlled very well。
Utility model content
In view of the deficiencies in the prior art, technical problem to be solved in the utility model be to provide a kind of design succinct, make simple, less costly and that ultra high power can be born film-coating type cladding light power detacher。
In order to solve the problems referred to above, the technical solution of the utility model is: a kind of film-coating type cladding light power detacher, including doubly clad optical fiber, the predetermined section of described doubly clad optical fiber divests coat and surrounding layer to expose inner cladding, being coated with at least one of which refractive index rete higher than inner cladding on the inner cladding that described doubly clad optical fiber exposes, the predetermined section after described doubly clad optical fiber plated film is encapsulated in metal cooling device。
In further preferred version, a glass tubing is installed between described metal cooling device and doubly clad optical fiber。
In further preferred version, described metal cooling device includes metal shell, and described metal shell is provided centrally with the installing hole for encapsulating doubly clad optical fiber, is provided for the cooling duct of cooling medium circulation in described metal shell。
In further preferred version, the surface configuration of the relative rete of described installing hole has screw thread。
In further preferred version, the surface configuration of the relative rete of described installing hole has black layer。
In further preferred version, described installing hole is manhole。
In further preferred version, described cooling duct is water-cooling channel or air-cooled passage。
In further preferred version, described inner cladding is coated with the one layer of refractive index rete higher than inner cladding。
In further preferred version, described inner cladding is coated with multilamellar refractive index by the interior rete become larger outward。
In further preferred version, the predetermined section length of described doubly clad optical fiber is 0.5 ~ 30cm。
Compared with prior art, this utility model has the advantages that (1) employs coating technique, can be prevented effectively from the use Power Limitation that glue technique is brought, also not complicated processing technique, greatly simplify production flow process, make simple and less costly；(2) metal cooling device using heat conductivity good absorbs the energy radiated, and is taken away rapidly by heat by forced refrigeration technology, makes the working condition that device maintenance is good, it is possible to bear significantly high power。
Accompanying drawing explanation
Fig. 1 is the structural representation of doubly clad optical fiber。
Fig. 2 is the structural representation of this utility model embodiment one。
Fig. 3 is the film layer structure schematic diagram of this utility model embodiment one。
Fig. 4 is the structural representation of this utility model embodiment two。
Fig. 5 is the film layer structure schematic diagram of this utility model embodiment two。
Fig. 6 is the structural representation of this utility model embodiment three。
Labelling in figure: 100-doubly clad optical fiber, 101-fibre core, 102-inner cladding, 103-surrounding layer, 200-rete, 201-ground floor rete, 202-second layer rete, 203-third layer rete, 300-metal cooling device, 310-metal shell, 311-installing hole, 312-cooling duct, 313-screw thread, 314-black layer, 400-glass tubing。
Detailed description of the invention
In order to allow features described above of the present utility model and advantage become apparent, special embodiment below, and coordinate accompanying drawing, it is described in detail below。
As shown in Fig. 1 ~ 6, a kind of film-coating type cladding light power detacher, including doubly clad optical fiber 100, the predetermined section of described doubly clad optical fiber 100 divests coat 104 and surrounding layer 103 to expose inner cladding 102, being coated with at least one of which refractive index rete 200 higher than inner cladding 102 on the inner cladding 102 that described doubly clad optical fiber 100 exposes, the predetermined section after described doubly clad optical fiber 100 plated film is encapsulated in metal cooling device 300。Wherein, described metal cooling device 300 plays heat sink effect。
In this utility model embodiment one, as shown in Fig. 2 ~ 3, described inner cladding 102 being coated with the one layer of refractive index rete 200 higher than inner cladding 102, described rete 200 is the anti-reflection film for predetermined band。
In this utility model embodiment two, as shown in Fig. 4 ~ 5, in order to make cladding light divest better effects if, described inner cladding 102 is coated with three layers refractive index by the interior rete 200 become larger outward, utilize the refractivity between different rete 200 to make cladding light overflow and can not return in inner cladding 102, inner cladding 102 power perfection is divested。
In this utility model embodiment three, as shown in Figure 6, in order to reduce the impact of material expansion coefficient difference, being provided with a glass tubing 400 between described metal cooling device 300 and doubly clad optical fiber 100, described glass tubing 400 can adopt vitreous silica material。Owing to glass tubing 400 is basically identical with the coefficient of expansion of optical fiber, Min. the impact that variations in temperature causes can be reduced。
In each above-mentioned embodiment, described metal cooling device 300 includes metal shell 310, described metal shell 310 is provided centrally with the installing hole 311 for encapsulating doubly clad optical fiber 100, is provided for the cooling duct 312 of cooling medium circulation in described metal shell 310。
Wherein, described cooling duct 312 is water-cooling channel or air-cooled passage, specifically can select air-cooled or water cooling method according to actually used situation, so that the heat that metal cooling device 300 absorbs can be passed away rapidly, to prevent whole product temperature too high。Such as, need to peel off power relatively larger time, described metal cooling device 300 selects water-cooled；Need to peel off power ratio less time, described metal cooling device 300 selects air-cooled。
In order to increase the absorption efficiency to light, the described installing hole 311 circular through hole of decision design, the surface of the described relative rete 200 of installing hole 311 can be provided with screw thread 313, the surface of the described relative rete 200 of installing hole 311 is also provided with black layer, described black layer can be that installing hole 311 surface to metal shell 310 center carries out blackening process formation, naturally it is also possible to is coated on what installing hole 311 surface was formed by blacking。
The manufacture method of this film-coating type cladding light power detacher, comprises the following steps:
(1) doubly clad optical fiber 100 is carried out lossless window and divests coat 104 and the surrounding layer 103 of certain length by the mode such as chemically or mechanically of can passing through, the length divested is relevant with the metal cooling device 300 of the structure of fiber_optic of use and design, and this length is between 0.5 ~ 30 centimetre under normal circumstances。
(2) optical fiber after divesting is cleaned; optical fiber is fixed on the coating clamp designed; expose the inner cladding 102 divesting part; other are protected not divest part; then fixture is placed in coater; plating at least one of which refractive index rete 200 higher than inner cladding 102 on inner cladding 102, the refractive index of each tunic layer is increased outward successively by interior。
(3) optical fiber after plated film is assemblied on the good metal cooling device of heat conductivility 300, so that the energy being stripped out can be pulled away rapidly, and does not affect properties of product。
In step (2), inner cladding 102 first plates the refractive index ground floor rete 201 higher than inner cladding 102, then the one layer of refractive index second layer rete 202 higher than ground floor rete 201 is plated again, if necessary, the refractive index third layer rete 203 higher than second layer rete 202 can be coated with again, even more rete, by that analogy, specifically can select the number of plies of required plated film according to the actual requirements。Meanwhile, each tunic layer need to have good transmitance at design wave band。
In step (3), can first the optical fiber after plated film be arranged in glass tubing 400, then again the assembly assembled is assemblied in the metal cooling device 300 of high thermal conductivity coefficient。
This utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of film-coating type cladding light power detachers under enlightenment of the present utility model。All equalizations done according to this utility model claim change and modify, and all should belong to covering scope of the present utility model。
Claims (10)
1. a film-coating type cladding light power detacher, including doubly clad optical fiber, it is characterized in that: the predetermined section of described doubly clad optical fiber divests coat and surrounding layer to expose inner cladding, being coated with at least one of which refractive index rete higher than inner cladding on the inner cladding that described doubly clad optical fiber exposes, the predetermined section after described doubly clad optical fiber plated film is encapsulated in metal cooling device。
2. film-coating type cladding light power detacher according to claim 1, it is characterised in that: a glass tubing is installed between described metal cooling device and doubly clad optical fiber。
3. film-coating type cladding light power detacher according to claim 1, it is characterized in that: described metal cooling device includes metal shell, described metal shell is provided centrally with the installing hole for encapsulating doubly clad optical fiber, is provided for the cooling duct of cooling medium circulation in described metal shell。
4. film-coating type cladding light power detacher according to claim 3, it is characterised in that: the surface configuration of the relative rete of described installing hole has screw thread。
5. the film-coating type cladding light power detacher according to claim 3 or 4, it is characterised in that: the surface configuration of the relative rete of described installing hole has black layer。
6. film-coating type cladding light power detacher according to claim 3, it is characterised in that: described installing hole is manhole。
7. film-coating type cladding light power detacher according to claim 3, it is characterised in that: described cooling duct is water-cooling channel or air-cooled passage。
8. film-coating type cladding light power detacher according to claim 1, it is characterised in that: described inner cladding is coated with the one layer of refractive index rete higher than inner cladding。
9. film-coating type cladding light power detacher according to claim 1, it is characterised in that: described inner cladding is coated with multilamellar refractive index by the interior rete become larger outward。
10. film-coating type cladding light power detacher according to claim 1, it is characterised in that: the predetermined section length of described doubly clad optical fiber is 0.5 ~ 30cm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521090415.9U CN205333909U (en) | 2015-12-24 | 2015-12-24 | Coating film type covering luminous power stripper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521090415.9U CN205333909U (en) | 2015-12-24 | 2015-12-24 | Coating film type covering luminous power stripper |
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| CN205333909U true CN205333909U (en) | 2016-06-22 |
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| CN201521090415.9U Active CN205333909U (en) | 2015-12-24 | 2015-12-24 | Coating film type covering luminous power stripper |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425404A (en) * | 2017-05-19 | 2017-12-01 | 大族激光科技产业集团股份有限公司 | The processing method of cladding light stripper |
| CN107561641A (en) * | 2017-09-25 | 2018-01-09 | 福州腾景光电科技有限公司 | A kind of fibre cladding high power divests combination unit and process for stripping |
| CN107845945A (en) * | 2017-11-02 | 2018-03-27 | 武汉锐科光纤激光技术股份有限公司 | High-capacity optical fiber laser mode stripper and preparation method thereof |
| CN109239848A (en) * | 2018-09-29 | 2019-01-18 | 武汉锐科光纤激光技术股份有限公司 | A kind of optical-fiber bundling device |
| CN109428256A (en) * | 2017-08-25 | 2019-03-05 | 朗美通经营有限责任公司 | Cladding light stripper |
| CN109546523A (en) * | 2017-09-22 | 2019-03-29 | 深圳联品激光技术有限公司 | A kind of the photospallation device and photospallation method of optical fiber laser |
| CN109901265A (en) * | 2019-03-04 | 2019-06-18 | 武汉聚合光子技术有限公司 | A kind of novel All-fibre isolator and preparation method thereof |
| CN111786250A (en) * | 2020-07-21 | 2020-10-16 | 四川中久大光科技有限公司 | High-power cladding light stripper and packaging shell inner wall structure thereof |
| CN114167544A (en) * | 2021-11-25 | 2022-03-11 | 厦门大学 | Optical fiber stripper based on nano film and manufacturing method thereof |
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2015
- 2015-12-24 CN CN201521090415.9U patent/CN205333909U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425404A (en) * | 2017-05-19 | 2017-12-01 | 大族激光科技产业集团股份有限公司 | The processing method of cladding light stripper |
| CN109428256A (en) * | 2017-08-25 | 2019-03-05 | 朗美通经营有限责任公司 | Cladding light stripper |
| CN109546523A (en) * | 2017-09-22 | 2019-03-29 | 深圳联品激光技术有限公司 | A kind of the photospallation device and photospallation method of optical fiber laser |
| CN107561641A (en) * | 2017-09-25 | 2018-01-09 | 福州腾景光电科技有限公司 | A kind of fibre cladding high power divests combination unit and process for stripping |
| CN107561641B (en) * | 2017-09-25 | 2020-04-03 | 腾景科技股份有限公司 | Optical fiber cladding high-power stripping combination device and stripping method |
| CN107845945A (en) * | 2017-11-02 | 2018-03-27 | 武汉锐科光纤激光技术股份有限公司 | High-capacity optical fiber laser mode stripper and preparation method thereof |
| CN107845945B (en) * | 2017-11-02 | 2024-04-12 | 武汉锐科光纤激光技术股份有限公司 | Mode stripper for high-power optical fiber laser and manufacturing method thereof |
| CN109239848A (en) * | 2018-09-29 | 2019-01-18 | 武汉锐科光纤激光技术股份有限公司 | A kind of optical-fiber bundling device |
| CN109901265A (en) * | 2019-03-04 | 2019-06-18 | 武汉聚合光子技术有限公司 | A kind of novel All-fibre isolator and preparation method thereof |
| CN111786250A (en) * | 2020-07-21 | 2020-10-16 | 四川中久大光科技有限公司 | High-power cladding light stripper and packaging shell inner wall structure thereof |
| CN114167544A (en) * | 2021-11-25 | 2022-03-11 | 厦门大学 | Optical fiber stripper based on nano film and manufacturing method thereof |
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| C14 | Grant of patent or utility model | ||
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Address after: 350015 five floors and three floors of building a and building B, building 1, Chashan Road, Mawei science and Technology Park, Fuzhou City, Fujian Province Patentee after: Tengjing Technology Co., Ltd Address before: 350015, tea mountain road, Mawei hi tech park, Fujian, Fuzhou Patentee before: FUZHOU TENGJING OPTOELECTRONICS TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |