CN103424816A - Butt tooling and butt method for PDF (praseodymium-doped fiber) and ordinary optical fiber - Google Patents
Butt tooling and butt method for PDF (praseodymium-doped fiber) and ordinary optical fiber Download PDFInfo
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- CN103424816A CN103424816A CN2013103487039A CN201310348703A CN103424816A CN 103424816 A CN103424816 A CN 103424816A CN 2013103487039 A CN2013103487039 A CN 2013103487039A CN 201310348703 A CN201310348703 A CN 201310348703A CN 103424816 A CN103424816 A CN 103424816A
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Abstract
The invention provides a butt tooling and butt method for a PDF (praseodymium-doped fiber) and an ordinary optical fiber. The tooling comprises a tooling body, a V-shaped groove is formed on the tooling body and is used for fixedly placing the PDF and the ordinary optical fiber. The butt method utilizing the above butt tooling to butt the PDF and the ordinary optical fiber includes A, placing the PDF and the ordinary optical fiber in the V-shaped groove; B, adjusting the space between the PDF and the ordinary optical fiber to allow the space between the butting ends to be 10 to 100 micrometers; C, using optical fiber glue to connecting and solidifying the two optical fibers in the step B. By means of V-shaped groove butting, consumption of optical fiber butting can decreased into 0.2dB, so that a PDFA (praseodymium-doped fiber amplifier) can be promoted into actual application, meanwhile, using efficiency of a pump and the PDF can be improved by optimizing the butting process.
Description
Technical field
The invention belongs to PDFA Praseodymium Doped Fiber Amplifier manufacturing technology field, relates in particular to PDF optical fiber in a kind of PDFA Praseodymium Doped Fiber Amplifier manufacture process and butting tooling and the docking calculation of ordinary optic fibre.
Background technology
The image intensifer form mainly contains three kinds at present: the semiconductor optical amplifier (SOA) that 1) utilizes laser diode (LD) to make; 2) fiber amplifier that utilizes rare earth doped fiber to make, wherein take Erbium-Doped Fiber Amplifier (EDFA) (EDFA) as main; 3) distributing-type optical amplifier that utilizes the conventional fiber nonlinear effect to make, be typically fiber Raman amplifier (FRA).
The development of optical communication is 1550nm wave band till now from 850nm, 1310nm, its developing direction be at a high speed, long distance and high power capacity, developing rapidly of the optical communication device of 1550nm wavelength range now and equipment has benefited from the EDFA(Erbium-Doped Fiber Amplifier (EDFA)) appearance, EDFA has solved the long Distance Transmission problem of this band of light, the development of 850nm and 1310nm band of light device is limited to its transmission range, at these two wave bands, never occur can large-scale production amplifier, it is one of principal element limited its development, and the PDFA Praseodymium Doped Fiber Amplifier of this Project-developing can be amplified near the light of O wave band (1310nm), have light signal is carried out in real time, online, broadband, high-gain, low noise, low-power consumption and wavelength, the direct enlarging function that speed and modulation system are transparent, one of be to solve current C ATV(75 ohm coaxial cable) effective ways of signal long-distance transmissions, with other doped optical fibre amplifier, the fiber nonlinear effect amplifier is the same, it is the Primary Component in the light transmission.PDFA Praseodymium Doped Fiber Amplifier directly amplifies light signal, the photosignal of having eliminated OEO equipment (for optical transmission process, signal being amplified again a kind of optical transmission device of shaping again) is changed the problems such as the distorted signals brought and signal rate restriction mutually, has thoroughly eradicated the electronics " bottleneck " formed in traditional photoelectric repeater; PDFA(PDFA Praseodymium Doped Fiber Amplifier simultaneously) can also be for the DWDM(dense wavelength division multiplexing of O wave band) and the CWDM(coarse wavelength division multiplexer) apply, O wave band application prospect expanded.
PDFA Praseodymium Doped Fiber Amplifier (PDFA) works in the 1300nm wavelength, usings and mixes praseodymium optical fiber as gain media, usings near the laser instrument of wavelength 1017nm as a kind of fiber amplifier of pump light source.The characteristic of PDFA depends mainly on absorption and the emission characteristics of mixing praseodymium optical fiber, i.e. spectral characteristic, and its spectral characteristic is decided by the level structure of praseodymium ion (Pr3+).Mix the level structure of praseodymium optical fiber as shown in Figure 5.
Mix praseodymium optical fiber and adopt fluorine glass as host material, the level structure of this doped fiber as shown above, is a kind of quasi-fore-lever system.Absorbing near the pump light of 1017nm can be amplified near 1310 light.
PDFA Praseodymium Doped Fiber Amplifier research at home is still in the laboratory study stage, not yet have ripe commodity, fast development due to the CATV optical transmission line, to the demand of this piece of light amplification also rapid growth, at some special occasions, use OEO can't solve circuit question, need to use the amplification of direct light to light, and along with the upgrading of follow-up CATV circuit, the increase-volume of network, the application demand of PDFA Praseodymium Doped Fiber Amplifier also can get more and more.
Summary of the invention
The problem that the invention will solve is: fundamental purpose of the present invention is to provide PDF optical fiber in the PDFA Praseodymium Doped Fiber Amplifier preparation process and butting tooling and the docking calculation of ordinary optic fibre.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is: the butting tooling of a kind of PDF optical fiber and ordinary optic fibre, comprise body, and described body is provided with class V-type groove, and described class V-type groove is for fixed placement PDF optical fiber and ordinary optic fibre.
Preferably, described body is opening up.
Preferably, described body is ceramic body.
Preferably, the longitudinal profile of described class V-type groove is isosceles triangle, and the dual-side of described class V-type groove is the isosceles limit, and the base of described isosceles triangle is concordant with surface level.
Preferably, the longitudinal profile of described class V-type groove is equilateral triangle.
Preferably, the length of side of described equilateral triangle is 160um ± 2um.
A kind of method of utilizing the above-mentioned butting tooling of stating to be docked PDF optical fiber and ordinary optic fibre, comprise the steps:
A. ordinary optic fibre and PDF optical fiber are positioned in described class V-type groove;
B. adjust the distance of ordinary optic fibre and PDF optical fiber, make the distance of butt end be about 10～100um;
C. use fibre-optic light guide glue to connect and described two optical fiber of curing schedule B.
Preferably, described glue is 353ND glue.
Preferably, described heating cure or the ultra-violet curing of being cured as.
Advantage and good effect that the invention has are: if use optical fiber splicer to carry out welding to PDF and general single mode fiber, its loss can reach the 1dB left and right, reduced to a great extent the overall efficiency of PDFA, and by this kind of V-type groove docking mode, can by fiber alignment loss be reduced in 0.2dB; The docking technique of the optical fiber of PDF is one of the through engineering approaches of PDFA and gordian technique of practical application, and this is conducive to push PDFA to practical application; By the improvement of butt-joint process, can improve the service efficiency of pumping and PDF simultaneously.
The accompanying drawing explanation
Fig. 1 is the left view of butting tooling of the present invention;
Fig. 2 is that Fig. 1 puts the later structural representation of optical fiber;
Fig. 3 is that frock of the present invention is put the later front view of optical fiber;
Fig. 4 is that frock of the present invention is put the later vertical view of optical fiber;
Fig. 5 is the described level structure figure that mixes praseodymium optical fiber of background technology.
In figure: 1. body, 2.V type groove, 3.PDF optical fiber, 4. ordinary optic fibre, 5. glue.
Embodiment
As shown in Figure 1, the butting tooling of a kind of PDF optical fiber and ordinary optic fibre, comprise body 1, and the top of described body 1 is provided with the class V-type groove 2 for fixed placement optical fiber, and the open top of described class V-type groove 2 is concordant with the upper surface of described body 1.
Preferably, described body 1 is opening up.Carry out a glue during convenient docking.
Preferably, described body 1 is ceramic body.
Preferably, the longitudinal profile of described class V-type groove 2 is isosceles triangle, and the dual-side of described class V-type groove 2 is the isosceles limit, and the base of described isosceles triangle is concordant with surface level.Can guarantee the accuracy of location of optical fiber and the convenience of cementing.
Preferably, the longitudinal profile of described class V-type groove 2 is equilateral triangle.Further improve the accuracy of fiber orientation.
Preferably, the length of side of described equilateral triangle is 160um ± 2um.Make location more accurate.
As shown in Figure 2,3, 4, a kind of method of utilizing above-mentioned butting tooling to be docked PDF optical fiber and ordinary optic fibre, comprise the steps:
A. ordinary optic fibre and PDF optical fiber are positioned in described class V-type groove;
B. adjust the distance of ordinary optic fibre 4 and PDF optical fiber 3, make the distance of butt end be about 10～100um;
C. use fibre-optic light guide glue 5 to connect and described two optical fiber of curing schedule B.
Preferably, described glue 5 is 353ND glue.Reduce the gain loss of fiber alignment.
Preferably, described heating cure or the ultra-violet curing of being cured as.
Because the expansion coefficient of ceramic body is approaching with the expansion coefficient of the optical fiber docked and 353ND glue 5, so the optical fiber after heating cure is all very superior from the profile to the performance.
Due to the numerical aperture large (Δ n:3% left and right) of PDF optical fiber 5, the thin (Φ: 4～5 μ m) of core diameter; With the numerical aperture very little (Δ n:0.3%) of common SMF optical fiber (take SMF-28e as example), core diameter is thick, and (Φ: 8～9 μ m), due to the composition difference of two kinds of optical fiber, during docking, the loss meeting is very large simultaneously.And adopt butting tooling of the present invention and method, PDF optical fiber 3 and the junction loss of ordinary optic fibre 4 can be reduced to the 0.2dB left and right.The docking mode of the present embodiment is to use the V-type groove 2 of ceramic bases that the optical fiber of well cutting is docked and solidifies, as shown in Figure 3,4.
As shown in Figure 2, the optical fiber of well cutting is positioned in the V-type groove 2 of ceramic bases, the processing of the V-type groove 2 in the present embodiment is based on photoengraving and forms, become equilateral triangle, every length of side is 160um, because PDF optical fiber 5 is identical with the external diameter of common SMF optical fiber (take SMF-28e as example), two optical fiber are aimed at and can be obtained accurate aligned position by V-type groove 2, thereby reduce the loss of fiber alignment, need to be cured optical fiber in the time of optical fiber align, put glue and solidify as shown in Figure 4:
Adjust the distance of PDF optical fiber 3 and ordinary optic fibre 4, be about 10～100um scope, use 353ND glue 5 to solidify two optical fiber that are assemblied in the V-type groove, V-type groove 2 is heated and can make colloid solidify.This kind of mode docked and the mode that is connected PDF optical fiber 3 and ordinary optic fibre (single mode) 3, effectively reduces the docking loss of optical fiber, can reach in 0.2dB.
Above one embodiment of the present of invention are had been described in detail, but described content can not be considered to for limiting the working of an invention scope only for the preferred embodiment of invention.All equalization variations of doing according to the present patent application scope and improvement etc., within all should still belonging to patent covering scope of the present invention.
Claims (9)
1. the butting tooling of a PDF optical fiber and ordinary optic fibre is characterized in that: the butting tooling of a kind of PDF optical fiber and ordinary optic fibre, comprise body, and described body is provided with class V-type groove, and described class V-type groove is for fixed placement PDF optical fiber and ordinary optic fibre.
2. the butting tooling of PDF optical fiber according to claim 1 and ordinary optic fibre is characterized in that: described body opening up.
3. the butting tooling of PDF optical fiber according to claim 1 and ordinary optic fibre, it is characterized in that: described body is ceramic body.
4. the butting tooling of PDF optical fiber according to claim 1 and ordinary optic fibre, it is characterized in that: the longitudinal profile of described class V-type groove is isosceles triangle, and the dual-side of described class V-type groove is the isosceles limit, and the base of described isosceles triangle is concordant with surface level.
5. the butting tooling of PDF optical fiber according to claim 4 and ordinary optic fibre, it is characterized in that: the longitudinal profile of described class V-type groove is equilateral triangle.
6. the butting tooling of PDF optical fiber according to claim 5 and ordinary optic fibre, it is characterized in that: the length of side of described equilateral triangle is 160um ± 2um.
7. a method of utilizing the described butting tooling of claim 1-6 any one to be docked PDF optical fiber and ordinary optic fibre, is characterized in that: comprise the steps:
A. ordinary optic fibre and PDF optical fiber are positioned in described class V-type groove;
B. adjust the distance of ordinary optic fibre and PDF optical fiber, make the distance of butt end be about 10～100um;
C. use fibre-optic light guide glue to connect and described two optical fiber of curing schedule B.
8. the method that PDF optical fiber and ordinary optic fibre are docked according to claim 7, it is characterized in that: described glue is 353ND glue.
9. the method that PDF optical fiber and ordinary optic fibre are docked according to claim 8, is characterized in that: described heating cure or the ultra-violet curing of being cured as.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103487039A CN103424816A (en) | 2013-08-12 | 2013-08-12 | Butt tooling and butt method for PDF (praseodymium-doped fiber) and ordinary optical fiber |
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| CN2013103487039A CN103424816A (en) | 2013-08-12 | 2013-08-12 | Butt tooling and butt method for PDF (praseodymium-doped fiber) and ordinary optical fiber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106810080A (en) * | 2017-01-23 | 2017-06-09 | 常熟共益信息科技有限公司 | A kind of fluorine tellurate mixes jade or pearl earring optical fiber and the super-broadband fiber amplifier containing the optical fiber |
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| CN1826545A (en) * | 2003-07-31 | 2006-08-30 | 胡贝尔和茹纳股份公司 | Method for releasably connecting two groups of optical fibers, and plug-in connector for carrying out said method |
| CN101210981A (en) * | 2006-12-27 | 2008-07-02 | 日立电线株式会社 | Optical connector |
| CN201820011U (en) * | 2010-08-06 | 2011-05-04 | 厦门市贝莱通信设备有限公司 | LC type metal contact pin structure of packaging optical fiber jumper of optical device |
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| CN202171662U (en) * | 2011-08-03 | 2012-03-21 | 深圳市恒捷丰光电科技有限公司 | Optical fiber protection structure for optical fiber connector |
| CN202362493U (en) * | 2011-10-12 | 2012-08-01 | 江苏云孚新材料科技有限公司 | Fiber connection unit, fiber connection device and fiber cold connector |
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2013
- 2013-08-12 CN CN2013103487039A patent/CN103424816A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199865A (en) * | 1997-04-25 | 1998-11-25 | 三星电子株式会社 | Optical fibre protection |
| CN1826545A (en) * | 2003-07-31 | 2006-08-30 | 胡贝尔和茹纳股份公司 | Method for releasably connecting two groups of optical fibers, and plug-in connector for carrying out said method |
| CN1794027A (en) * | 2005-12-29 | 2006-06-28 | 中国科学院上海光学精密机械研究所 | Manufacturing method of optical fiber connector |
| CN101210981A (en) * | 2006-12-27 | 2008-07-02 | 日立电线株式会社 | Optical connector |
| CN102116910A (en) * | 2010-05-31 | 2011-07-06 | 王其彪 | Optical fiber and V-shaped slot bonding integrated cold connection technique |
| CN201820011U (en) * | 2010-08-06 | 2011-05-04 | 厦门市贝莱通信设备有限公司 | LC type metal contact pin structure of packaging optical fiber jumper of optical device |
| CN202171662U (en) * | 2011-08-03 | 2012-03-21 | 深圳市恒捷丰光电科技有限公司 | Optical fiber protection structure for optical fiber connector |
| CN202362493U (en) * | 2011-10-12 | 2012-08-01 | 江苏云孚新材料科技有限公司 | Fiber connection unit, fiber connection device and fiber cold connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106810080A (en) * | 2017-01-23 | 2017-06-09 | 常熟共益信息科技有限公司 | A kind of fluorine tellurate mixes jade or pearl earring optical fiber and the super-broadband fiber amplifier containing the optical fiber |
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Application publication date: 20131204 |