CN111786249A - High-power cladding light stripper and end fastening and sealing structure thereof - Google Patents
High-power cladding light stripper and end fastening and sealing structure thereof Download PDFInfo
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- CN111786249A CN111786249A CN202010705755.7A CN202010705755A CN111786249A CN 111786249 A CN111786249 A CN 111786249A CN 202010705755 A CN202010705755 A CN 202010705755A CN 111786249 A CN111786249 A CN 111786249A
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- annular groove
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- 238000007789 sealing Methods 0.000 title claims abstract description 94
- 238000005253 cladding Methods 0.000 title claims abstract description 23
- 238000004806 packaging method and process Methods 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 41
- 239000013307 optical fiber Substances 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 239000000835 fiber Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000110 cooling liquid Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06704—Housings; Packages
-
- 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
- G02B6/02—Optical fibres with cladding with or without a coating
-
- 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
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
-
- 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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Plasma & Fusion (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a high-power cladding light stripper and an end fastening and sealing structure thereof. The extruded sealing ring can play the four roles of fixing the sleeve, packaging the internal space of the shell, buffering the impact of external vibration on the sleeve and avoiding the accidental damage of the sleeve due to the contact of the sleeve with other structural components, thereby effectively improving the reliability of the packaging shell. The gasket avoids the problems of sealing ring damage, sealing failure, coolant leakage and the like caused by abnormal deformation of the sealing ring. Through the depth of the designed dense annular groove, the deformation amount of the sealing ring is controlled within the recommended design interval, so that reasonable and quantitative extrusion of the sealing ring is realized.
Description
Technical Field
The invention relates to the field of cladding light strippers, in particular to a high-power cladding light stripper and an end fastening and sealing structure thereof.
Background
Currently, high-power fiber lasers in the market generally adopt double-clad or multi-clad fibers. Because the gain fiber has limited absorption of pump light, there will be residual pump light in the fiber cladding; a certain amount of cladding light is excited at the fiber fusion splice due to the change in refractive index. The presence of such Cladding light deteriorates the beam quality of the output laser light, and reduces the stability of the laser system, and it is necessary to perform stripping using a Cladding Power Stripper (CPS). For a high-power fiber laser with the output power of several kilowatts, the stripping power of the CPS needs to reach several hundred watts.
The manufacture of CPS for stripping several hundred watts of cladding light, and even higher power, requires removal of the coating from a length of optical fiber and corrosion treatment of the outer cladding, resulting in a fragile and easily broken optical fiber. In order to increase the strength, a quartz glass tube is usually required to be sleeved outside the optical fiber to increase the strength of the corrosion area, and the optical fiber and the quartz glass tube are connected and fixed through glue. When the CPS peeling power reaches several hundred watts, in order to prevent the peeled light from heating components around the CPS, resulting in a decrease in reliability, it is generally necessary to fix the quartz glass tube of the CPS in a package housing for absorbing waste light. The packaging shell is in contact with the heat dissipation cold plate or carries out heat exchange with cooling liquid introduced into the packaging shell, and waste light is generated and taken away.
When the quartz glass tube is fixed in the packaging shell, the sealing ring (generally an O-shaped ring) is extruded by the fastening plug, so that the sealing ring is deformed to complete packaging. On one hand, the deformation of the sealing ring can increase the friction force between the sealing ring and the quartz glass tube, and prevent the quartz glass tube from generating axial displacement; on the one hand, the deformation of the sealing ring can prevent the cooling liquid from leaking outwards along the quartz glass tube, such as CN 208173994U.
However, the current CPS end fastening and sealing structure has the following problems:
1. the transverse limit of the sealing ring is not considered, so that the sealing ring inevitably generates transverse displacement to a certain degree during assembly, the quartz glass tube is driven to transversely move, and the possibility that the quartz glass tube is damaged due to the fact that the quartz glass tube is in hard contact with the packaging shell and the fastening plug exists. When the impact is large or the vibration is frequent, the quartz glass tube may be broken at the contact point and nearby, the optical fiber in the quartz glass tube may be broken due to the loss of effective support, the optical fiber is burnt, even a series of chain reactions are caused, and the optical fiber laser is burnt;
2. when the fastening plug is screwed along the threads in the packaging shell, the sealing ring is extruded and simultaneously angular torsional force is applied to the sealing ring due to friction, and the sealing ring is unevenly deformed due to excessive twisting, so that the problems of sealing failure, coolant leakage, damage to the sealing ring and the like are caused;
3. the deformation amount of the sealing ring cannot be controlled in the process of screwing the fastening plug by the traditional structure. The sealing ring has the risk of life reduction or even damage caused by overlarge compression amount, and also has the risk of loosening or untight sealing of the quartz glass tube caused by insufficient compression, so that the problems of sealing failure and leakage of cooling liquid can be caused.
Disclosure of Invention
The invention provides a high-power cladding light stripper and an end fastening and sealing structure thereof, which are used for solving the problems in the background technology.
The technical scheme adopted by the invention is as follows: the end fastening and sealing structure of the high-power cladding light stripper comprises an optical fiber, a sleeve, a packaging shell and a limiting mechanism, wherein the optical fiber is arranged in the sleeve in a penetrating way after being subjected to coating layer removal and corrosion treatment; stop gear includes annular groove, sealing washer, fastening end cap, the both ends of installation through-hole all communicate there is the end cap screw hole, the annular groove is located the both ends of installation through-hole respectively just the sleeve pipe passes the annular groove, the sealing washer cover is located just be located the annular groove on the sheathed tube lateral wall, the aperture of end cap screw hole is greater than the diameter of annular groove, the thickness of sealing washer is greater than the groove depth degree of annular groove, fastening end cap cover is located the sleeve pipe outside and with end cap screw hole threaded connection, through screwing up the fastening end cap realizes right the ration compression of sealing washer, and realization the lateral displacement can not take place for the sleeve pipe.
Preferably, the fastening plug is provided with a second through hole, and the diameter of the second through hole is larger than the outer diameter of the sleeve.
Preferably, the sleeve is a quartz glass tube or a sapphire tube.
Preferably, stop gear still includes the gasket, the gasket is located between sealing washer and the fastening end cap, the gasket external diameter equals to the diameter that is less than the end cap screw hole, the gasket internal diameter is greater than sheathed tube external diameter.
Preferably, the gasket is made of metal or polytetrafluoroethylene.
Preferably, the annular groove is formed by enclosing an annular boss and the mounting through hole, the annular boss is located at one end close to the plug threaded hole, a first through hole is formed in the middle of the annular boss, and the aperture of the first through hole is larger than the outer diameter of the sleeve.
Preferably, the difference between the inner diameter and the outer diameter of the sealing ring is larger than the maximum offset of the actual axis after the annular boss, the gasket and the fastening plug are assembled.
Preferably, the annular groove is formed by enclosing the bottom of the limiting cushion block and the side wall of the annular limiting table fixed on the periphery of the limiting cushion block, the limiting cushion block is located at the bottom end of the plug threaded hole, a third through hole is formed in the middle of the bottom of the limiting cushion block, and the aperture of the third through hole is larger than the outer diameter of the sleeve.
Preferably, the difference between the inner diameter and the outer diameter of the sealing ring is larger than the maximum offset of the actual axis after the limiting cushion block, the gasket and the fastening plug are assembled.
A high-power cladding light stripper comprises the high-power cladding light stripper end fastening and sealing structure.
The invention has the beneficial effects that:
(1) the extruded sealing ring can play the four roles of fixing the sleeve, packaging the internal space of the shell, buffering the impact of external vibration on the sleeve and avoiding the accidental damage of the sleeve due to the contact of the sleeve with other structural components, thereby effectively improving the reliability of the packaging shell.
(2) The gasket avoids the problems of sealing ring damage, sealing failure, coolant leakage and the like caused by abnormal deformation of the sealing ring.
(3) Through the depth of the designed annular groove, the deformation amount of the sealing ring is controlled within a set interval, so that reasonable and quantitative extrusion of the sealing ring is realized. Therefore, the risk that the service life of the sleeve is shortened or even damaged due to overlarge compression amount is eliminated, the risk that the sleeve is loosened or not tightly sealed due to insufficient compression is eliminated, the assembly difficulty is reduced, and the reliability of the packaging shell is effectively improved.
Drawings
FIG. 1 is a cross-sectional view of a high power cladding light stripper tip fastening seal structure according to an embodiment of the present invention;
FIG. 2 is a partial exploded view of a high power cladding light stripper tip fastening seal structure according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a high power cladding light stripper tip fastening seal structure according to a second embodiment of the present invention;
fig. 4 is a partial exploded view of a high-power cladding light stripper tip fastening sealing structure according to a second embodiment of the present invention.
In the drawings, the reference numbers: 10-an optical fiber; 20-quartz glass tube; a 30-CPS packaging housing; 31-mounting a through hole; 32-plug threaded hole; 40-limiting cushion blocks; 41-annular boss; 42-an annular stop table; 50-sealing ring; 60-a gasket; and 70-fastening a plug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings, but embodiments of the present invention are not limited thereto.
Example 1:
referring to fig. 1-2, since the two end fastening sealing structures of the clad light stripper are identical, the present embodiment will be described with reference to one of the end fastening sealing structures.
A high-power cladding light stripper end head fastening and sealing structure comprises an optical fiber 10, a quartz glass tube 20, a CPS packaging shell 30 and a limiting mechanism.
The optical fiber 10, partially coated and etched, is inserted into a silica glass tube 20, and the optical fiber 10 is fixed at both ends of the silica glass tube 20 using a sealing glue.
The CPS packaging shell 30 is of a tubular structure and is provided with a mounting through hole 31, plug threaded holes 32 are formed in two ends of the mounting through hole 31, and the central axis of each plug threaded hole 32 is superposed with the central axis of the corresponding mounting through hole 31; the quartz glass tube 20 is arranged in the plug threaded hole 32 and the mounting through hole 31 in a penetrating manner, and the quartz glass tube 20 is fixedly mounted in the mounting through hole 31 through a limiting mechanism.
The limiting mechanism comprises an annular groove, a sealing ring 50, a gasket 60 and a fastening plug 70, the annular groove is formed by the side walls of an annular boss 41 and a mounting through hole 31, the annular boss 41 is located at one end, close to a plug threaded hole 32, of the mounting through hole 31, the annular boss 41 and the CPS packaging shell 30 are integrally formed, the sealing ring 50 is arranged in the annular groove, the annular groove plays a role in limiting the sealing ring 50 transversely, and the sealing ring 50 can be prevented from displacing transversely. The annular boss 41 has a first through hole in the middle, and the aperture of the first through hole is slightly larger than the outer diameter of the quartz glass tube 20, so that the quartz glass tube 20 can pass through the first through hole and cannot contact with the annular boss 41.
The sealing ring 50 is made of elastic material and deforms when being extruded by the outside, the sealing ring 50 is sleeved at one end of the quartz glass tube 20 and is located in the annular groove, the inner diameter of the sealing ring 50 is equal to or slightly smaller than the outer diameter of the quartz glass tube 20, and the thickness of the sealing ring 50 is larger than the groove depth of the annular groove.
The diameter of the plug threaded hole 32 is larger than that of the annular groove; the gasket 60 is annular, the outer diameter of the gasket 60 is equal to or slightly smaller than the inner diameter of the plug threaded hole 32, and the inner diameter of the gasket 60 is larger than the outer diameter of the quartz glass tube 20; the gasket 60 is fitted over the quartz glass tube 20 and abuts against the seal ring 50.
The fastening plug 70 is provided with a second through hole, the aperture of the second through hole is larger than the outer diameter of the quartz glass tube 20, and the outside of the fastening plug 70 is provided with a thread matched with the plug threaded hole 32.
In the process of screwing the fastening plug 70, the second through hole in the fastening plug 70 penetrates through the quartz glass tube 20, then the fastening plug 70 is screwed into the plug threaded hole 32, the fastening plug 70 contacts the gasket 60, then the fastening plug 70 is screwed continuously, the gasket 60 extrudes the sealing ring 50, so that the sealing ring 50 deforms, the sealing ring 50 gradually fills a space surrounded by the inner wall of the annular groove, the outer wall of the quartz glass tube 20 and the gasket 60, when the fastening plug 70 is screwed to the bottom end face of the gasket contacting the plug threaded hole 32, quantitative extrusion on the sealing ring 50 is completed, and therefore the quartz glass tube 20 is fixed in the installation through hole 31. Therefore, the risk of service life reduction and even damage of the quartz glass tube 20 caused by overlarge compression amount is eliminated, the risk of loosening or untight sealing of the quartz glass tube 20 caused by insufficient compression is also eliminated, the assembly difficulty can be reduced, and the reliability of the cladding light stripper is effectively improved.
In the process of fixing the quartz glass tube 20, the gasket 60 can more uniformly transmit the axial pressure of the fastening plug 70, and on the other hand, the gasket 60 has a smooth surface, so that in the screwing process of the fastening plug 70, the gasket can slide relative to the fastening plug 70, the angular torsional force applied to the sealing ring 50 in the screwing process is reduced, the sealing ring 50 is reasonably deformed due to uniform extrusion, and the problems of sealing failure, coolant leakage, damage to the sealing ring 50 and the like caused by abnormal deformation of the sealing ring 50 are solved. The gasket 60 may be made of a metal material, or may be made of a material having a hardness greater than that of the seal ring 50, such as polytetrafluoroethylene.
It is worth noting that the CPS packaging shell 30, the annular boss 41 and the gasket 60 are not in contact with the quartz glass tube 20, only the sealing ring 50 is in contact with the quartz glass tube 20, the groove depth of the annular groove or the thickness of the sealing ring 50 can be adjusted as required, the fastening plug 70 can quantitatively compress the sealing ring 50 by limiting the precession depth of the fastening plug 70, and the deformation amount of the sealing ring 50 is controlled within a reasonable range; the difference between the inner diameter and the outer diameter of the sealing ring 50 is greater than the maximum offset of the actual axis after the annular boss 41, the gasket 60 and the fastening plug 70 are assembled, so that the quartz glass tube 20 can be ensured to be only in contact with the sealing ring 50 no matter under the static condition or under the impact and vibration conditions after assembly, and the risk that the quartz glass tube 20 is damaged or even broken due to the contact with the annular boss 41, the gasket 60 and the fastening plug 70 is eliminated.
Although the gasket 60 is provided in the present embodiment, the gasket 60 is only a preferable mode, and the gasket 60 is not used in the present embodiment, so that the advantages of preventing the quartz glass tube 20 from being broken and realizing the quantitative compression of the sealing ring 50 can be obtained although there is a possibility of causing the abnormal deformation of the sealing ring 50.
In the present embodiment, the quartz glass tube 20 may also be replaced with a sapphire tube.
Example 2:
referring to fig. 3 to 4, in this embodiment, the annular groove is different from that in embodiment 1, and the rest of the structure is the same, so that this embodiment only describes the annular groove in this embodiment, and the rest of the structure is not described again.
The limiting mechanism comprises an annular groove, a sealing ring 50, a gasket 60 and a fastening plug 70, the annular groove is formed by enclosing the bottom of the limiting cushion block 40 and the side wall of the annular limiting table 42 at the periphery of the limiting cushion block 40, a third through hole is formed in the central axis of the limiting cushion block 40, and the aperture of the third through hole is larger than the outer diameter of the quartz glass tube 20, so that the quartz glass tube 20 can penetrate through the third through hole and cannot be contacted with the limiting cushion block 40; the annular groove plays a role in transversely limiting the sealing ring 50, and can prevent the sealing ring 50 from transversely displacing; the outer diameter of the limiting cushion block 40 is the same as the aperture of the plug threaded hole 32, and the limiting cushion block 40 is installed in the plug threaded hole 32 and abuts against the end face of the bottom of the plug threaded hole 32. The height of the annular limiting table 42 of the limiting cushion block 40 can be adjusted as required, so that the extrusion deformation degree of the sealing ring 50 can be limited, and the purpose of quantitatively compressing the sealing ring 50 is achieved.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a high power covering light stripper end fastening seal structure which characterized in that: the optical fiber is subjected to coating layer removal and corrosion treatment and then penetrates into the sleeve, the packaging shell is provided with an installation through hole, the sleeve penetrates into the installation through hole, and the sleeve is fixed in the installation through hole by the limiting mechanism; stop gear includes annular groove, sealing washer, fastening end cap, the both ends of installation through-hole all communicate there is the end cap screw hole, the annular groove is located the both ends of installation through-hole respectively just the sleeve pipe passes the annular groove, the sealing washer cover is located just be located the annular groove on the sheathed tube lateral wall, the aperture of end cap screw hole is greater than the diameter of annular groove, the thickness of sealing washer is greater than the groove depth degree of annular groove, fastening end cap cover is located the sleeve pipe outside and with end cap screw hole threaded connection, through screwing up the fastening end cap realizes right the ration compression of sealing washer, and realization the lateral displacement can not take place for the sleeve pipe.
2. The high power clad light stripper tip fastening and sealing structure of claim 1, wherein: the fastening plug is provided with a second through hole, and the aperture of the second through hole is larger than the outer diameter of the sleeve.
3. The high power clad light stripper tip fastening and sealing structure of claim 1, wherein: the sleeve is a quartz glass tube or a sapphire tube.
4. The high power clad light stripper tip fastening and sealing structure of claim 1, wherein: the limiting mechanism further comprises a gasket, the gasket is located between the sealing ring and the fastening plug, the outer diameter of the gasket is equal to or smaller than the diameter of the threaded hole of the plug, and the inner diameter of the gasket is larger than the outer diameter of the sleeve.
5. The high power clad light stripper tip fastening and sealing structure of any of claims 1-4, wherein: the annular groove is formed by enclosing an annular boss and the mounting through hole, the annular boss is located at one end close to the threaded hole of the plug, a first through hole is formed in the middle of the annular boss, and the aperture of the first through hole is larger than the outer diameter of the sleeve.
6. The high power clad light stripper tip fastening and sealing structure of claim 5, wherein: the difference between the inner diameter and the outer diameter of the sealing ring is larger than the maximum offset of the actual axis after the annular boss, the gasket and the fastening plug are assembled.
7. The high power clad light stripper tip fastening and sealing structure of any of claims 1-4, wherein: the annular groove is formed by enclosing the bottom of the limiting cushion block and the side wall of the annular limiting table fixed on the periphery of the limiting cushion block, the limiting cushion block is located at the bottom end of the plug threaded hole, a third through hole is formed in the middle of the bottom of the limiting cushion block, and the aperture of the third through hole is larger than the outer diameter of the sleeve.
8. The high power clad light stripper tip fastening and sealing structure of claim 7, wherein: the difference between the inner diameter and the outer diameter of the sealing ring is larger than the maximum offset of the actual axis after the limiting cushion block, the gasket and the fastening plug are assembled.
9. A high power cladding light stripper comprising the high power cladding light stripper tip fastening seal of any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010705755.7A CN111786249A (en) | 2020-07-21 | 2020-07-21 | High-power cladding light stripper and end fastening and sealing structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010705755.7A CN111786249A (en) | 2020-07-21 | 2020-07-21 | High-power cladding light stripper and end fastening and sealing structure thereof |
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| CN111786249A true CN111786249A (en) | 2020-10-16 |
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| CN202010705755.7A Pending CN111786249A (en) | 2020-07-21 | 2020-07-21 | High-power cladding light stripper and end fastening and sealing structure thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112946813A (en) * | 2021-02-22 | 2021-06-11 | 西安石油大学 | Packaging structure of fiber grating |
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| CN212380720U (en) * | 2020-07-21 | 2021-01-19 | 四川中久大光科技有限公司 | High-power cladding light stripper and end fastening and sealing structure thereof |
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| CN112946813A (en) * | 2021-02-22 | 2021-06-11 | 西安石油大学 | Packaging structure of fiber grating |
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