CN114236693B - Suspension type micro optical cable rapid connection connector and connection method - Google Patents

Suspension type micro optical cable rapid connection connector and connection method Download PDF

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Publication number
CN114236693B
CN114236693B CN202111677215.3A CN202111677215A CN114236693B CN 114236693 B CN114236693 B CN 114236693B CN 202111677215 A CN202111677215 A CN 202111677215A CN 114236693 B CN114236693 B CN 114236693B
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Prior art keywords
tubular shell
inner tube
optical cable
tail
micro optical
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CN202111677215.3A
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Chinese (zh)
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CN114236693A (en
Inventor
刘庆
黄亨沛
徐明东
张凡明
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Hefei Sunshine Optoelectronics Science & Technology Co ltd
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Hefei Sunshine Optoelectronics Science & Technology Co ltd
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/255Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2551Splicing of light guides, e.g. by fusion or bonding using thermal methods, e.g. fusion welding by arc discharge, laser beam, plasma torch
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4415Cables for special applications
    • G02B6/4427Pressure resistant cables, e.g. undersea cables
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/443Protective covering
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/44384Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439Auxiliary devices
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50Underground or underwater installation; Installation through tubing, conduits or ducts
    • G02B6/506Underwater installation

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

The invention discloses a suspension type micro optical cable quick connection connector and a connection method, wherein the connection connector comprises a tubular shell, an inner tube, two tail sleeves and a buoyancy outer cover, the tubular shell is divided into an inner tube connecting part and tail sleeve connecting parts arranged at two ends of the inner tube connecting part, strip-shaped openings penetrating through two ends of the inner tube are formed in the tube wall of the inner tube, the inner tube is arranged in the inner tube connecting part of the tubular shell, the inner ends of the two tail sleeves are connected in the tail sleeve connecting part of the tubular shell in a threaded manner, the inner ends of the two tail sleeves respectively support against two ends of the inner tube and the inner cavities of the two tail sleeves are mutually communicated, and the buoyancy outer cover is completely coated outside the tubular shell and the two tail sleeves. The invention has the advantages of simple structure, small volume, high mechanical strength, corrosion resistance, suspension property and the like, and is convenient for rapidly realizing the connection operation of the micro optical cable on site.

Description

Suspension type micro optical cable rapid connection connector and connection method
Technical Field
The invention relates to the technical field of optical fiber connectors, in particular to a suspension type micro optical cable rapid connection connector and a connection method.
Background
Ocean is a treasury of resources and energy, especially in the deep sea field, and ocean equipment required by deep sea detection, resource development, underwater operation and the like, especially deep sea equipment carrying fine optical cables, is an object of research in various countries. Among them, the submarine communication is a basic condition that various deep sea projects can realize, and the deep sea connector plays a wide and important role therein.
The underwater optical fiber connector plays roles of power, signal transmission and connection between various underwater and deep sea, and is an important weapon for expanding human activities to the deep sea. The connector is mainly plugged and unplugged according to the matching mode. The plug connector is a connector capable of completing plug operation in a seawater environment and is mainly used for optical fiber plug interconnection operation in an underwater environment, but the plug connector is complex in process in watertight aspects, needs to be manufactured at an optical cable port in advance, and cannot meet the field-level micro optical cable interconnection maintenance requirement.
Disclosure of Invention
The invention aims to solve the technical problem of providing a suspension type ultrafine optical cable quick connection connector and a connection method, which have the advantages of high mechanical strength, small volume, no need of plugging, corrosion resistance, suspension property and the like.
The technical scheme of the invention is as follows:
The utility model provides a connector is plugged into fast to little optical cable of suspension type, includes tubular shell, inner tube, two tail sleeves and buoyancy dustcoat, tubular shell divide into inner tube connecting portion and set up in the tail sleeve connecting portion at inner tube connecting portion both ends, the pipe wall of inner tube on set up the strip opening that link up the inner tube both ends, the inner tube sets up in tubular shell's inner tube connecting portion, the inner tip threaded connection of two tail sleeves is in tubular shell's tail sleeve connecting portion, the inner of two tail sleeves supports the both ends of inner tube respectively and the inner chamber of two tail sleeves communicates each other with the inner chamber of inner tube, buoyancy dustcoat cladding in tubular shell and the outside of two tail sleeves completely.
The inner cavity of the inner tube is provided with curing glue for bonding and fixing the connected micro optical cable in the inner tube.
The inner wall of the inner tube is provided with an optical cable bearing aramid fiber.
The tubular shell is a 316L stainless steel tube.
The tail sleeve comprises a tapered outer end part, a limiting middle part and an outer thread inner end part which are sequentially connected, the inner cavities of the tapered outer end part, the limiting middle part and the outer thread inner end part are mutually communicated, the inner pipe diameter of the tapered outer end part is gradually increased from the outer end to the inner end, the inner end of the tapered outer end part is fixedly connected with the outer end of the limiting middle part, the outer diameter of the limiting middle part of the tail sleeve is not smaller than the outer diameter of the tubular shell, the inner wall of the tail sleeve connecting part of the tubular shell is provided with an inner thread, and the outer thread inner end part of the tail sleeve stretches into the tail sleeve connecting part of the tubular shell and is in threaded connection with the tail sleeve connecting part of the tubular shell.
The outer diameter of the tail sleeve limiting middle part is equal to the outer diameter of the tubular shell, and the inner end of the tail sleeve limiting middle part abuts against one corresponding end of the tubular shell.
The buoyancy outer cover comprises an upper sealing cover with an arc-shaped notch facing downwards and a lower sealing cover with an arc-shaped notch facing upwards, the arc-shaped notches of the upper sealing cover and the lower sealing cover are opposite, and the upper sealing cover and the lower sealing cover are fixed by screws to form the buoyancy outer cover.
The method for connecting the micro optical cable specifically comprises the following steps:
(1) Firstly, respectively passing two micro optical cables to be connected through two tail sleeves, wherein one micro optical cable passing through the tail sleeve passes through a tubular shell, then welding the ends of the two micro optical cables to be connected, and performing hot coating treatment on the welded connection parts of the micro optical cables;
(2) Penetrating the connection part of the micro optical cable into the inner tube from the strip-shaped opening of the inner tube, and injecting curing glue for fixation, and enabling the welded micro optical cable to be in a slightly bent non-bearing state in the inner tube;
(3) Penetrating the inner tube of the cured micro optical cable into a tubular shell, wherein two ends of the tubular shell are respectively in threaded connection with two tail sleeves, and the inner ends of the two tail sleeves respectively prop against two ends of the inner tube;
(4) The outer parts of the tubular shell and the two tail sleeves are covered with buoyancy outer covers, so that the suspended type micro optical cable quick connection connector is suspended in water.
In the step (1), the aramid fibers at the ends of the two micro optical cables to be connected are firstly stripped and then welded.
In the step (2), after the connection part of the micro-optical cable penetrates into the inner tube from the strip-shaped opening part of the inner tube, namely, two ends of the micro-optical cable penetrate out of two ends of the inner tube respectively, then two ends of the inner tube are sealed by adhesive tapes, and then curing adhesive is injected into the inner tube from the strip-shaped opening part, so that the curing adhesive is cured at normal temperature, and the packaging treatment of the micro-optical cable and the inner tube is realized.
The invention has the advantages that:
(1) The existing optical cable plugging device generally adopts an optical cable coiling box, has large volume and small volume, realizes plugging of a plurality of groups of optical cables, ensures that the whole weight of the whole plugging connector is greatly reduced, and reduces the density of the plugged optical cables.
(2) The invention adopts a mode of welding the micro optical cable, and the welded micro optical cable is subjected to hot coating, so that the watertight requirement of the connection connector is reduced, and meanwhile, the inner pipe is internally provided with the optical cable bearing aramid fiber, so that the bearing fixation of the micro optical cable is effectively ensured;
(3) The tubular shell adopts the seawater corrosion resistant 316L stainless steel tube, has stronger corrosion resistance, and is an excellent choice of a deep-sea connector;
(4) According to the invention, the micro optical cable is solidified in the inner tube through the solidified glue, and the encapsulation treatment of the micro optical cable and the inner tube is realized while the micro optical cable is fixed, so that the water tightness is improved;
(5) The buoyancy outer cover is made of a deep sea solid buoyancy material, so that the connector is suspended in sea water and has the excellent characteristics of low density, high compressive strength, high hydrostatic pressure resistance, low and stable water absorption, processability, good weather resistance, no environmental pollution and the like.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a cross-sectional view of the tubular housing of the present invention.
FIG. 3 is a schematic view of the structure of the inner tube of the present invention.
Fig. 4 is a cross-sectional view of the boot of the present invention.
Fig. 5 is an exploded view of the buoyancy jacket of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-5, A suspended type micro optical cable quick connection connector comprises a tubular shell 1, an inner tube 2, two tail sleeves 3 and a buoyancy outer cover 4, wherein the tubular shell 1 is divided into an inner tube connecting part 11 and tail sleeve connecting parts 12 arranged at two ends of the inner tube connecting part 11, strip-shaped openings 21 penetrating through two ends of the inner tube are formed in the tube wall of the inner tube 2, and the inner tube 2 is arranged in the inner tube connecting part 11 of the tubular shell 1; the tail sleeve 3 comprises a conical outer end 31, a limiting middle part 32 and an outer thread inner end 33 which are sequentially connected, the inner cavities of the conical outer end 31, the limiting middle part 32 and the outer thread inner end 33 are mutually communicated, the inner pipe diameter of the conical outer end 31 is gradually increased from the outer end to the inner end, the inner end of the conical outer end 31 is fixedly connected with the outer end of the limiting middle part 32, the outer diameter of the tail sleeve limiting middle part 32 is equal to the outer diameter of the tubular shell 1, the inner wall of the tail sleeve connecting part 12 of the tubular shell is provided with an inner thread, the outer thread inner end 33 of the tail sleeve 3 extends into the tail sleeve connecting part 12 of the tubular shell and is in threaded connection with the tail sleeve, the inner ends of the tail sleeve limiting middle part 32 prop against one end corresponding to the tubular shell 1, the inner cavities of the two tail sleeves 3 and the inner cavities of the inner pipe 2 are mutually communicated, and the buoyancy outer cover 4 is completely coated outside the tubular shell 1 and the two tail sleeves 3.
Wherein, the tubular shell 1 is a 316L stainless steel tube, the inner cavity of the inner tube 2 is provided with curing glue for bonding and fixing the connected micro optical cable 5 in the inner tube 2, and the inner wall of the inner tube 2 is provided with optical cable bearing aramid fiber; the buoyancy housing 4 comprises an upper sealing cover 41 with a downward arc-shaped notch and a lower sealing cover 42 with an upward arc-shaped notch, the arc-shaped notches of the upper sealing cover 41 and the lower sealing cover 42 are opposite, and the upper sealing cover 41 and the lower sealing cover 42 are fixed by screws to form the buoyancy housing 4.
The fine optical cable connection method specifically comprises the following steps:
(1) Firstly, respectively passing two micro optical cables 5 to be connected through two tail sleeves 3, wherein after one micro optical cable 5 passing through the tail sleeve 3 passes through the tubular shell 1 again, firstly stripping aramid fibers at the end heads of the two micro optical cables 5 to be connected, then welding, and carrying out hot coating treatment on the connection parts of the micro optical cables 5 after welding;
(2) After the connection part of the micro optical cable 5 penetrates into the inner tube 2 from the strip-shaped opening 21 of the inner tube 2, namely, two ends of the micro optical cable 5 penetrate out of two ends of the inner tube 2 respectively, then two ends of the inner tube 2 are sealed by adhesive tapes, and then curing adhesive is filled into the inner tube 2 from the strip-shaped opening 21 to enable the curing adhesive to be cured at normal temperature, so that the packaging treatment of the micro optical cable and the inner tube is realized, and the welded micro optical cable 5 is in a slightly bent non-bearing state in the inner tube 2;
(3) Penetrating the inner tube 2 of the cured micro optical cable 5 into the tubular shell 1, wherein two ends of the tubular shell 1 are respectively in threaded connection with the two tail sleeves 3, and the inner ends of the two tail sleeves 3 respectively prop against two ends of the inner tube 2;
(4) The outer parts of the tubular shell 1 and the two tail sleeves 3 are covered with a buoyancy outer cover 4, so that the suspended type micro optical cable quick connection connector is suspended in water.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The method for carrying out micro optical cable connection by the suspension type micro optical cable quick connection connector is characterized by comprising the following steps of: the suspended type micro optical cable quick connection connector comprises a tubular shell, an inner pipe, two tail sleeves and a buoyancy outer cover, wherein the tubular shell is divided into an inner pipe connecting part and tail sleeve connecting parts arranged at two ends of the inner pipe connecting part, optical cable bearing aramid fibers are arranged on the inner wall of the inner pipe, strip-shaped openings penetrating through two ends of the inner pipe are formed in the pipe wall of the inner pipe, the inner pipe is arranged in the inner pipe connecting part of the tubular shell, the inner ends of the two tail sleeves are connected in the tail sleeve connecting part of the tubular shell in a threaded manner, the inner ends of the two tail sleeves respectively support against two ends of the inner pipe, the inner cavities of the two tail sleeves are mutually communicated with the inner cavities of the inner pipe, and the buoyancy outer cover is completely coated outside the tubular shell and the two tail sleeves;
The method for connecting the micro optical cable specifically comprises the following steps:
(1) Firstly, respectively passing two micro optical cables to be connected through two tail sleeves, wherein one micro optical cable passing through the tail sleeve passes through a tubular shell, then welding the ends of the two micro optical cables to be connected, and performing hot coating treatment on the welded connection parts of the micro optical cables;
(2) Penetrating the connection part of the micro optical cable into the inner tube from the strip-shaped opening of the inner tube, and injecting curing glue for fixation, and enabling the welded micro optical cable to be in a slightly bent non-bearing state in the inner tube;
(3) Penetrating the inner tube of the cured micro optical cable into a tubular shell, wherein two ends of the tubular shell are respectively in threaded connection with two tail sleeves, and the inner ends of the two tail sleeves respectively prop against two ends of the inner tube;
(4) The outer parts of the tubular shell and the two tail sleeves are covered with buoyancy outer covers, so that the suspended type micro optical cable quick connection connector is suspended in water.
2. The method for performing fine fiber optic cable splicing by a suspended fine fiber optic cable quick splicing connector according to claim 1, wherein: the inner cavity of the inner tube is provided with curing glue for bonding and fixing the connected micro optical cable in the inner tube.
3. The method for performing fine fiber optic cable splicing by a suspended fine fiber optic cable quick splicing connector according to claim 1, wherein: the tubular shell is a 316L stainless steel tube.
4. The method for performing fine fiber optic cable splicing by a suspended fine fiber optic cable quick splicing connector according to claim 1, wherein: the tail sleeve comprises a tapered outer end part, a limiting middle part and an outer thread inner end part which are sequentially connected, the inner cavities of the tapered outer end part, the limiting middle part and the outer thread inner end part are mutually communicated, the inner pipe diameter of the tapered outer end part is gradually increased from the outer end to the inner end, the inner end of the tapered outer end part is fixedly connected with the outer end of the limiting middle part, the outer diameter of the limiting middle part of the tail sleeve is not smaller than the outer diameter of the tubular shell, the inner wall of the tail sleeve connecting part of the tubular shell is provided with an inner thread, and the outer thread inner end part of the tail sleeve stretches into the tail sleeve connecting part of the tubular shell and is in threaded connection with the tail sleeve connecting part of the tubular shell.
5. The method for performing fine fiber optic cable splicing by a suspended fine fiber optic cable quick splicing connector according to claim 4, wherein: the outer diameter of the tail sleeve limiting middle part is equal to the outer diameter of the tubular shell, and the inner end of the tail sleeve limiting middle part abuts against one corresponding end of the tubular shell.
6. The method for performing fine fiber optic cable splicing by a suspended fine fiber optic cable quick splicing connector according to claim 1, wherein: the buoyancy outer cover comprises an upper sealing cover with an arc-shaped notch facing downwards and a lower sealing cover with an arc-shaped notch facing upwards, the arc-shaped notches of the upper sealing cover and the lower sealing cover are opposite, and the upper sealing cover and the lower sealing cover are fixed by screws to form the buoyancy outer cover.
7. The method for performing fine fiber optic cable splicing by a suspended fine fiber optic cable quick splicing connector according to claim 1, wherein: in the step (1), the aramid fibers at the ends of the two micro optical cables to be connected are firstly stripped and then welded.
8. The method for performing fine fiber optic cable splicing by a suspended fine fiber optic cable quick splicing connector according to claim 1, wherein: in the step (2), after the connection part of the micro-optical cable penetrates into the inner tube from the strip-shaped opening part of the inner tube, namely, two ends of the micro-optical cable penetrate out of two ends of the inner tube respectively, then two ends of the inner tube are sealed by adhesive tapes, and then curing adhesive is injected into the inner tube from the strip-shaped opening part, so that the curing adhesive is cured at normal temperature, and the packaging treatment of the micro-optical cable and the inner tube is realized.
CN202111677215.3A 2021-12-31 2021-12-31 Suspension type micro optical cable rapid connection connector and connection method Active CN114236693B (en)

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CN114236693B true CN114236693B (en) 2024-06-04

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1160084A (en) * 1981-02-05 1984-01-10 Roger C. Finn Reinforced optical fiber splice
US6498879B1 (en) * 1999-03-31 2002-12-24 Wavesplitter Technologies, Inc. Polarization-independent, environmentally stable optical fiber narrow band multi-window wavelength division multiplexer based on biconical tapered fusion coupler technology
US6788852B1 (en) * 2002-02-15 2004-09-07 Finisar Corporation Double-tube fiber coupler package
CN201749217U (en) * 2010-08-25 2011-02-16 河北四方通信设备有限公司 SMA-type optical fiber connector
CN102360104A (en) * 2011-10-12 2012-02-22 上海方奥通信技术有限公司 Underwater optical cable connector
KR101114289B1 (en) * 2010-12-06 2012-03-05 주식회사 에이제이월드 Optical connector for assembling in the field
CN104538788A (en) * 2014-12-03 2015-04-22 北京神州普惠科技股份有限公司 Rapid connection apparatus of photoelectric composite cable of fiber-optic hydrophone array
CN105487180A (en) * 2016-01-13 2016-04-13 中国电子科技集团公司第八研究所 Zero-buoyancy optical cable watertight force bearing connector
CN106019479A (en) * 2016-07-11 2016-10-12 武汉普惠海洋光电技术有限公司 Metalized package fiber splitter with high reliability
CN106526750A (en) * 2015-09-11 2017-03-22 Ⅱ-Ⅵ有限公司 Micro splice protector
JP2017191298A (en) * 2016-04-15 2017-10-19 株式会社フジクラ Optical fiber protective structure and method for manufacturing optical element

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US7641395B2 (en) * 2004-06-22 2010-01-05 Halliburton Energy Serives, Inc. Fiber optic splice housing and integral dry mate connector system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1160084A (en) * 1981-02-05 1984-01-10 Roger C. Finn Reinforced optical fiber splice
US6498879B1 (en) * 1999-03-31 2002-12-24 Wavesplitter Technologies, Inc. Polarization-independent, environmentally stable optical fiber narrow band multi-window wavelength division multiplexer based on biconical tapered fusion coupler technology
US6788852B1 (en) * 2002-02-15 2004-09-07 Finisar Corporation Double-tube fiber coupler package
CN201749217U (en) * 2010-08-25 2011-02-16 河北四方通信设备有限公司 SMA-type optical fiber connector
KR101114289B1 (en) * 2010-12-06 2012-03-05 주식회사 에이제이월드 Optical connector for assembling in the field
CN102360104A (en) * 2011-10-12 2012-02-22 上海方奥通信技术有限公司 Underwater optical cable connector
CN104538788A (en) * 2014-12-03 2015-04-22 北京神州普惠科技股份有限公司 Rapid connection apparatus of photoelectric composite cable of fiber-optic hydrophone array
CN106526750A (en) * 2015-09-11 2017-03-22 Ⅱ-Ⅵ有限公司 Micro splice protector
CN105487180A (en) * 2016-01-13 2016-04-13 中国电子科技集团公司第八研究所 Zero-buoyancy optical cable watertight force bearing connector
JP2017191298A (en) * 2016-04-15 2017-10-19 株式会社フジクラ Optical fiber protective structure and method for manufacturing optical element
CN106019479A (en) * 2016-07-11 2016-10-12 武汉普惠海洋光电技术有限公司 Metalized package fiber splitter with high reliability

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