CN1161459A - Method and apparatus for stripping coatings from optical fibers - Google Patents
Method and apparatus for stripping coatings from optical fibers Download PDFInfo
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- CN1161459A CN1161459A CN 95121651 CN95121651A CN1161459A CN 1161459 A CN1161459 A CN 1161459A CN 95121651 CN95121651 CN 95121651 CN 95121651 A CN95121651 A CN 95121651A CN 1161459 A CN1161459 A CN 1161459A
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Abstract
A method and apparatus are provided for removing protective coating material from a fiber optic cable including one or more optical fibers. A stream of hot inert gas is directed onto the cable to soften the protective coating material and blow it from the cable. The stream can be moved relative to the cable until the desired length of coating material has been removed.
Description
The present invention relates to a kind of one or more optical fibre packages is rolled in the method and apparatus that the coating material of appointed part on the optical cable in the protective material is removed.
The glass optical fiber diameter is very little, is subjected to the influence of external influences such as mechanical force and ambient condition easily, avoids disturbing for protection optical fiber, utilizes one or more layers protective material usually.
The a certain special-purpose of optical fiber need be removed with an end of optical fiber or away from the coating at the position of end points.For example; in order to make fiber coupler, to peel off two coatings on the optical fiber at least, make it be stripped from part welding and stretching side by side; no matter how coupling mechanism is made; for coupling mechanism is linked to each other with other optical fiber, it is inserted into from the protection chamber that the optical fiber tail end extends out, in stripping process; the position of peeling off of not damaging optical fiber is very important; because in subsequent process or in coupling mechanism was made, when applying tension, the position that is damaged weakening was unable to bear.
Need in the process of welding two optical fiber or multifiber cable will connected every optical fiber end release coating before welding, apply again again after being fused, high-intensity welding is made and is become more and more important.
Therefore, the intensity of the reduction optical fiber that the stripping process of coating should be inexcessive.
Release coating can be by hand method, optical fiber is put into a hand-held instrument, blade on the instrument is attached to the reverse side of coat side, move axially with respect to fibre coating, the exposed part of optical fiber need be wiped with the wet cloth examination of soaking into alcohol or analog, to remove stain and/or the coating granule that is deposited on the optical fiber exposed part in the coating stripping process.This coating clear program is set in the middle of the actuating equipment of tradesman's work.Therefore, this stripping process no longer is manual.
Some coating reset procedurees utilize the such solvent of acetone to go softening and expansion coating, so that coating is easy to remove.Perhaps, utilize the well heater in the coating scavenge unit also can make the soft expansion of coating, can also be by sulfuric acid and hydrogen peroxide be contacted (removing dacron) or use the sulfuric acid dissolution dacron with fibre coating.
These programs have various disadvantages, and it only is applicable to from the end of optical fiber removes coating, be not suitable for removing coating in the place away from the end, and that these positions make fiber coupler just are necessary.Adopt the mechanical stripping machine will cause optical fiber surface scratch or scuffing; As when the exposed glass optical fiber that does not have coating is removed from mechanical stripping machine, optical fiber surface will be scratched, some stripping means can not produce clearly boundary line in the section of peeling off and the end section of peeling off of optical fiber, if stripping process stays next coarse, uneven coating, the optical fiber finished product after then peeling off can not realize utilizing purpose.In addition, mechanical stripping also can pollute optical fiber surface, therefore also needs follow-up one by one cleaning, to remove degranulation, and cleaning can cause than mechanical stripping step and more scratches, and the mechanical stripping of manual operation and typical peel manually highly rely on the operator from the same.
The disadvantage of chemical stripping process is that it is difficult to control, and they can pollute or in the residual coating of fiber surface, another disadvantage of chemical stripping is that it utilizes the alkaline chemical that needs to remove the danger of handling.In addition, chemical substance also can be stayed on the optical fiber of being stripped from the zone flowing between fiber and the coating.
From row's optical fiber, as release coating in optical fiber ribbon cable or the symmetrical multifiber cable of circle especially difficulty.Because coating material between the fiber that closely connects or between fiber and the fine continuous reinforcing element as optical cable.
Therefore, the object of the present invention is to provide a kind of cleaning, the easy and economical and practical single optical fiber or one of removing to arrange the method and apparatus of coating on the optical fiber.Another purpose is to provide a kind of fibre coating of peeling off, and no longer needs to wipe examination and processing to reach when bare fibre utilizes.Also have a purpose just to provide a kind ofly to peel off optical fiber end, away from the method and apparatus of end or whole section zone-coating such as optical fiber.
In brief; the present invention relates to the method that a kind of fiber optic cable that wraps up from the coating material that has one section protected property of glass optical fiber at least is removed coating material; the hot gas direct injection or flow on the coating material that will be removed, the composition of gas should be as the criterion not react with coating material.The temperature of gas should be high enough to softening coating material, make coating from the optical fiber by inflation.
In the embodiment that selects for use, between gas that sprays and optical fiber, form relative motion.This can pass through mobile gas, or moving fiber or both move and reach.If gas moves, it can move with the direction perpendicular to fiber axis along fiber axis.
This advantage is its support optical fiber, makes it not because of the air-flow excessive shock.
The invention still further relates to a kind of have at least designated length on the fiber optic cable that the one section protected property of glass optical fiber coating material wrapped up the device removed of coating material.This device comprises a hot inert gas source, and the component of hot gas does not react with coating material.Provide an air-flow to be ejected into the method for the designated length of coated optical fiber.
Fig. 1 is the synoptic diagram of a fibre coating stripping off device.
Fig. 2 and 12 is flow path synoptic diagram of peeling off the thermal current of fibre coating.
Fig. 3 and Fig. 4 are degree of depth fibre coating lift-off technology synoptic diagram.
Fig. 5, Fig. 6 and Fig. 7 are the accumulation Weibull probability graphs of three different fiber, the optical fiber that Fig. 5 peels off corresponding to the inventive method and device, Fig. 6 corresponding to peel manually from the optical fiber that cleans, Fig. 7 is corresponding to unstripped optical fiber.
Fig. 8 is that the ribbon fiber coating material is peeled off figure.
Fig. 9, Figure 11 are that the guiding thermal current sprays into fiber optic cable installation drawing.
Figure 10 is fiber optic cable sectional view.
Figure 12 is the flow path synoptic diagram of the thermal current of release coating optical fiber.
Figure 13 is the synoptic diagram from a large amount of simple optical fiber release coating materials.
Fig. 1 has showed a kind of device of removing coating material from coated fiber 10.Wherein, coated fiber 10 comprises a glass optical fiber 11 and coating 12.The component of coating must be when the coating temperature raises, the rapid deliquescing of coating, determine whether a kind of given coating material addresses that need, need only determine whether the optical fiber that applies this given material is suitable for the inventive method, clearly, being mixed with resistant to elevated temperatures material for those is improper present this method.
In a practical operation, desire to make coating material 12 to remove to the position of a b from the some a on the coated optical fiber.For preventing thermal current 24 transition vibrations optical fiber, clamp one section coated optical fiber with clamper 14,15, pipe heater 20 is along axle 22 directions location, can in the plane that comprises coated optical fiber 10, rotate, but it makes its jet 24 not point to optical fiber for the position of axle 22, inert gas valve is opened, and pipe heater 20 promptly is opened.After gas temperature is raised to operation class, coating is removed program and is promptly begun, pipe heater 20 rotates along the direction of arrow 26 indications around axle 22, and the hot gas that penetrates up to the nozzle from pipe heater points to that of coated optical fiber 10, and pipe heater 20 laterally moves around the direction of axle 22 along arrow 29.When a point on the coated optical fiber 10 to the b point to coating substance be coated with clearly after, pipe heater 20 rotates along the direction of arrow 27 around axle 20, so that hot gas is no longer facing to optical fiber.Exposed optical fiber is fully clean 11 this moments.Need not do further processing again and promptly can be used for down-stream, as making coupling mechanism or welding.
In a unsuccessful experiment, Hot air quilt blows to coated fiber.Airborne oxygen and coating material react, and cause burning and stick to optical fiber surface.
Hot-air had better not stay the long time in a certain zone of optical fiber, in order to avoid weaken optical fiber.Reason for this reason, pipe heater are preferably in when it has just turned to thermal current to spray to the position of coated fiber and just laterally move along axle 22.The flow path of inert gas can be as shown in Figure 2, pipe heater (around arrow 26) rotation simultaneously and (along arrow 29) move up, up to air-flow 31 is mapped on the coated optical fiber 10, after removing enough coating materials, it still (along arrow 29) move up and simultaneously (around arrow 27) rotate, produce path 32 as shown in Figure 2.
Device shown in Figure 3 can be used for removing the coating material of coated optical fiber 40 ends.As shown in arrow 41, coated fiber is admitted to an internal diameter and is a bit larger tham in the pipe 42 of coated fiber external diameter.The nozzle of pipe heater 45 is positioned near optical fiber and stretches out from managing 42, so that optical fiber is owing to minimum is reduced in the vibrations that the impact of steam flow 44 causes.The pipe heater of binding as shown in Figure 1 can rotate, and makes jet 44 can deviate from the direction of optical fiber 50.Towards the axle of coated fiber 40, when coated fiber stretches out 42 and when entering the flow path of air-flow 44, coating material is because of the heated air stream deliquescing from managing, the granule 48 of coating material is blown to the exhaust apertures 49 from optical fiber 50 during nozzle 43 beginning.After stripping process, the tail point 47 of retention is very little, not influence the subsequent process that optical fiber utilizes.
The speed dependent of relative motion is in gas temperature, gas flow, the traversing flow of coated optical fiber and the softness characteristics parameter of coating material particle of arriving of gas between coated fiber and the air-flow.These parameter interdependences.For example, when the jet temperature when first temperature value is raised to second temperature value, the relative motion between jet and the optical fiber is raised to second rate value from first rate value, reaches the result similar with first rate value to first temperature value.
Fig. 4 is a technology synoptic diagram of removing coating 55 on the optical fiber 56 fast.This technology can be used on to be removed on the long section fibre coating, also can be used on the whole dish cable.The nozzle 57 of heater tube 58 is elongated, and makes the hot inert gas stream of ejection can spray to scope long on the coating.
The nozzle that is elongated as shown in Figure 4 also can not need nozzle, and optical fiber is removed coating when relative motion is arranged.The length of nozzle should pre-determine, and the air-flow of ejection can be impacted on the optical fiber, removes the coated optical fiber of preseting length.Under the situation that does not have air-flow/optical cable relative motion, temperature that may needs are higher relatively and bigger airshed.Embodiment 1-removes the simple optical fiber coating
The coated optical fiber of quoting in the present embodiment is that an external diameter is traditional single mode silica fibre of 125 microns, and the coating material of optical fiber is a urethane acrylate, and its external diameter is 250 microns, and what pipe heater adopted is 001-10002 type convection heater.The gas outflow end diameter of nozzle is 1.76 millimeters.Thermopair is placed at the place of close outlet in the pipe heater, and the temperature of the inert hot gas that calibration sprays from pipe plays the Control of Voltage effect to heating.Concerning this example, when 126.7 volts of alternating voltages are added to heating tube, record gas temperature and reach 820 ℃, the output terminal of pipe heater 20 and the coated fiber distance in the coating stripping operation is about 2.86 millimeters.Nitrogen enters input pipe 23 with the flow of 20.9 standard liter/min.
Nitrogen stream begins to flow into, and heating tube is pressurized, and program subsequently as shown in Figure 3.Coated fiber is sent into the speed of 1.75cm/s from delivery pipe 42.Nozzle 43 is positioned at the position of the delivery pipe bottom about 2.5mm in bottom.When coated fiber moved hot nitrogen body through blowing out from heating tube, coating material became soft and is blown away from the optical fiber bottom, and air-flow rotates, so it can not impact coating.
The optical fiber finished product of peeling off stands strength test, optical fiber add up the Weibull probability curve as shown in Figure 5.The optical fiber of handling through the present invention than peel manually from optical fiber solid.Peel manually need be wiped with alcohol from fiber optics and stay the particle of being stripped from optical fiber in stripping process.Peel manually from the Weibull probability curve of, optical fiber after wiping examination as shown in Figure 6.Notice that traditional peel manually is to cross the technology that makes the coating stripping of optical fiber in the covering coupling mechanism manufacture process from what adopt.
For relatively, the Weibull curve of unstripped (coating) optical fiber as shown in Figure 7, it is corresponding with the present invention, and to peel off the intensity of the intensity of back optical fiber (Fig. 7) and unstripped optical fiber very approaching, but be higher than peel manually from fiber strength (Fig. 6).
The optical fiber that the method for employing embodiment 1 is peeled off does not need further cleaning course as the manufacturing fiber coupler time, as when making the covering coupling mechanism, each coating above the root all is removed in numerous optical fiber, optical fiber uncoated or peel off after part be inserted into the vertical core of glass tube, therefore all stretch out from one of glass tube or two the end of every optical fiber, the coupling mechanism that is prefabricated into middle part is heated and subsides, and its center is stretched, and has increased optical fiber and has reduced their diameter.When the coupling of hope is finished, promptly stop to stretch.If on the stain of any coating material or the particle residue optical fiber after peeling off, when optical fiber was inserted into glass tube, these coating materials will burn and maybe disintegrate when pipe is subsided and stretches.The loss that the formed crystal grain of gas that is produced by combustion process will cause the finished product coupling mechanism to be difficult to receive.The coupling mechanism of peeling off optical fiber fabrication corresponding with the inventive method has low-loss and no crystallization.
The inventive method is not limited to those parameters that embodiment 1 proposes.The speed of relative motion all has very wide setting range between airshed, gas temperature and heating tube and the optical fiber.The coating of being removed from optical fiber just has stronger reaction when being low to moderate 550 ℃ when gas temperature.If adopt the gas of this lower temperature, then the relative motion between heating tube and the optical fiber just must be slowed down, remove softening coating material to obtain enough heats, perhaps also can select the sort of nozzle that is elongated as shown in Figure 4 for use, but airshed must be enough to blowing softly from optical fiber to coating material.
Fig. 8 is the mode figure that the coating on the optical fiber ribbon cable optical fiber 65 is removed.The gas of sending in the well heater 56 (arrow 68) penetrates from nozzle 67, with one air-flow 69 round all optical fiber ribbon cables 65.Because nozzle is a rectangle, be rectangle then perpendicular to the airflow shaped on the face of air current flow direction.As Fig. 1, well heater 66 (position is lower than diagram) can move on the direction of arrow 70, up to a position of thermal inertia air-flow 69 directive optical cables 65.Well heater 66 moves on arrow 72 directions along optical cable 65.After the coating material of a between b was removed on the optical cable 65, well heater 66 was drawn back from optical cable 65 upper edge arrows 71 directions, no longer points to optical cable until thermal current.Exposed optical fiber 64 clean enoughs do not need to do cleaning again in follow-up job sequence, what Fig. 8 showed is to remove coating from the middle part of optical cable 65, and device 8 also can be used for from optical cable termination removing coating.
As shown in Figure 9, heating tube 75 can be used to guide a large amount of gases to spray to optical cable 76, and this embodiment will be applicable to that width is big, need many heats to come the coating of the optical fiber ribbon cable of soft coating to remove.
The present invention is used in the end of circuit symmetric fiber as shown in figure 10 or the coating stripping of afterbody.Optical cable 79 comprises the tension element that is surrounded by plastic coating material 81, a large amount of optical fiber 82 by equally spaced spread over element 80 around.This optical cable is made by classic method by a large amount of coating material layers.For for simplicity, have only a layer of material to be illustrated out.One or more strands of air-flows to remove the coating material at end of cable or middle part fully, are made these materials in the optical fiber of tight distribution or between tension force unit and the optical fiber by directive optical cable 79.
Figure 11 has showed that two or more heating tubes 85 radially point to the longitudinal axis of light transmitting device 86, and light transmitting device 86 can comprise the optical cable of single coated fiber or multifiber.
Figure 12 is that removed when hot inert gas stream 86 can be with the path behind the coating material that comprises on the light transmitting device of single coated fiber or multiple fiber cable.In this embodiment, when optical cable and air-flow have when moving to axial, air-flow can cross the optical cable motion repeatedly.The air motion approach is as follows:
(a) side of air flow direction optical cable 89;
(b) air-flow swept away optical cable;
(c) air-flow moves on arrow 91 directions along optical cable;
(d) air-flow swept away optical cable, and
(e) repeating step (c) and (d) be removed until the coating material of specified section; Last flow path is by shown in the dotted line 90.
Figure 13 sprays the thermal inertia air-flow with guide nozzle 95 on optical fiber, to remove a synoptic diagram of arranging in the optical fiber coating material 93 on the every optical fiber simultaneously.Nozzle moves (optical fiber end is in this zone) to the b district, and this technology can be used as the coating stripping of handling a large amount of optical fiber or the making of coupling mechanism.Also can use this technology and remove the centre coating of a large amount of optical fiber, these optical fiber can be discharged the linear array that circle-shaped or other non-linear shapes replace optical fiber.
A kind of method of removing coating from the glass fiber cable that comprises one section protected property coating material parcel at least of the embodiment of the invention 2 expressions; it comprises; the source of the gas that provides its component not react with coating material; heat described source of the gas; simultaneously described gas is blowed to described coating material, with the decoating material.
Corresponding source of the gas in the said method, gas temperature, gas flow and gas transmission parameter etc. are substantially the same described in embodiment 1.
A kind of device that uses said method to remove the certain-length coating material of optical cable of the present invention which comprises at least a glass optical fiber by protective finish material periphery, and this device also comprises the hot inert gas source that its component does not react with coating material; One is directed to guide piece on the certain-length optical cable to described thermal current; One can be with respect to the mobile device of described air motion.
Described optical cable can be a kind of simple optical fiber that has one deck coating material thereon, also can be the optical cable that includes multifiber.
The xsect perpendicular to airflow direction of the described air-flow that is used to be directed to can be rectangle (or oval).
The device of the described air-flow that is used to lead also comprises a nozzle that can therefrom spray air-flow.
Described optical fiber is provided with according to the planar array mode.
Claims (14)
1. the optical cable from the glass optical fiber that comprises one section protected property coating material parcel is at least removed the method for coating; it is characterized in that; described method comprises that the guiding thermal current sprays to the coating material that will remove; the composition of thermal current does not react with above-mentioned coating material; it is enough high that the temperature of thermal current is wanted, with softening above-mentioned coating material.
2. method according to claim 1 is characterized in that, also comprises the relative motion that said flow and above-mentioned optical cable are provided.
3. method according to claim 2 is characterized in that, the relative motion step that provides comprises that said flow axially moves in optical cable axle side along optical cable.
4. method according to claim 2 is characterized in that, the relative motion step that provides also comprises exports optical cable from pipe, determine the position of said flow, and it is impacted on the optical cable that sends out from pipe.
5. method according to claim 2 is characterized in that, the relative motion step that provides comprises that also keeping said flow stablizes, and moves above-mentioned optical cable with respect to this air-flow.
6. method according to claim 1 is characterized in that, it also comprises supports above-mentioned optical cable, makes it stop the vibrations that caused by the said flow impact.
7. method according to claim 6 is characterized in that, above-mentioned coating will be removed by the appointed part from above-mentioned optical cable, and above-mentioned optical cable is leaned by the reverse side of above-mentioned appointed part.
8. method according to claim 1 is characterized in that, the step of steering current comprises guides thermal current a round symmetrical cross-sections to be arranged or a rectangular cross section is arranged on the plane perpendicular to the air current flow direction.
9. method according to claim 1 is characterized in that, the step of guiding thermal current also comprises to be made a large amount of above-mentioned thermal current directive optical cables or make a large amount of above-mentioned thermal currents directive optical cable from different directions.
10. method according to claim 1 is characterized in that, above-mentioned thermal current is also done the to-and-fro movement of sweeping away optical cable when doing axial relative motion with above-mentioned optical cable.
11. method according to claim 1 is characterized in that, above-mentioned optical cable includes a large amount of optical cables, and/or its feature is being that also the coating material on above-mentioned a large amount of simple optical fiber of arranging is shoulder to shoulder removed simultaneously.
12. a device of carrying out the described method of above-mentioned each claim, it comprises a hot inert gas source, and the composition of gas does not react with coating material, the position of guiding above-mentioned thermal current directive optical cable designated length.In addition, the device that also comprises the above-mentioned optical cable vibrations of the prevention that freely to choose.
13. device according to claim 12, it is characterized in that, above-mentioned resistance shake device comprises first clamper of a fixing above-mentioned optical cable and fixing above-mentioned optical cable and second clamper that has spacing with first clamper, or the pipe that adjoins of output terminal and said flow and the device of optical cable being sent optical cable from aforementioned tube.
14. device according to claim 12, it is characterized in that, also comprise device that said flow is moved along the optical cable Y and with said flow with respect to the horizontal device that moves of optical cable, said apparatus comprises that also the heating tube that can freely choose has one section air-flow from the nozzle of ejaculation wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95121651 CN1161459A (en) | 1994-12-01 | 1995-12-01 | Method and apparatus for stripping coatings from optical fibers |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/348,542 | 1994-12-01 | ||
| US08/444,983 | 1995-05-19 | ||
| CN 95121651 CN1161459A (en) | 1994-12-01 | 1995-12-01 | Method and apparatus for stripping coatings from optical fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1161459A true CN1161459A (en) | 1997-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95121651 Pending CN1161459A (en) | 1994-12-01 | 1995-12-01 | Method and apparatus for stripping coatings from optical fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1161459A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454060C (en) * | 2004-06-02 | 2009-01-21 | 伊利诺斯器械工程公司 | Method of removing substrate material in optical cable |
| CN103878664A (en) * | 2013-04-22 | 2014-06-25 | 洛阳威尔若普检测技术有限公司 | Device for stripping wear-resistant rubber covers from elevator bearing composite belts |
| CN107367792A (en) * | 2017-09-07 | 2017-11-21 | 广东省智能机器人研究院 | A kind of optical fiber coating process for stripping and partition apparatus |
| CN107430253A (en) * | 2015-01-30 | 2017-12-01 | 康宁光电通信有限责任公司 | Fiber stripping method and equipment |
| CN109491014A (en) * | 2018-12-12 | 2019-03-19 | 桂林电子科技大学 | A kind of online high-pressure hot wind formula optical fiber coating stripping device |
| CN110187441A (en) * | 2019-05-17 | 2019-08-30 | 广州奥鑫通讯设备有限公司 | A kind of method of contactless removing optical fiber coating |
| CN111727394A (en) * | 2018-02-20 | 2020-09-29 | 住友电气工业株式会社 | Method for manufacturing optical fiber and optical fiber |
-
1995
- 1995-12-01 CN CN 95121651 patent/CN1161459A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454060C (en) * | 2004-06-02 | 2009-01-21 | 伊利诺斯器械工程公司 | Method of removing substrate material in optical cable |
| CN103878664A (en) * | 2013-04-22 | 2014-06-25 | 洛阳威尔若普检测技术有限公司 | Device for stripping wear-resistant rubber covers from elevator bearing composite belts |
| CN103878664B (en) * | 2013-04-22 | 2016-08-03 | 洛阳威尔若普检测技术有限公司 | A kind of device peeled off for the wear-resisting gum cover of elevator load composite band |
| CN107430253A (en) * | 2015-01-30 | 2017-12-01 | 康宁光电通信有限责任公司 | Fiber stripping method and equipment |
| CN107367792A (en) * | 2017-09-07 | 2017-11-21 | 广东省智能机器人研究院 | A kind of optical fiber coating process for stripping and partition apparatus |
| CN107367792B (en) * | 2017-09-07 | 2020-09-22 | 广东省智能机器人研究院 | Optical fiber coating layer stripping method and partition device |
| CN111727394A (en) * | 2018-02-20 | 2020-09-29 | 住友电气工业株式会社 | Method for manufacturing optical fiber and optical fiber |
| CN109491014A (en) * | 2018-12-12 | 2019-03-19 | 桂林电子科技大学 | A kind of online high-pressure hot wind formula optical fiber coating stripping device |
| CN109491014B (en) * | 2018-12-12 | 2020-11-06 | 桂林电子科技大学 | Online high-pressure hot air type optical fiber coating layer stripping device |
| CN110187441A (en) * | 2019-05-17 | 2019-08-30 | 广州奥鑫通讯设备有限公司 | A kind of method of contactless removing optical fiber coating |
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