阅读说明：本技术 一种保偏光纤、制造模具及方法 (A kind of polarization maintaining optical fibre, manufacture mold and method ) 是由 涂峰 但晓红 蒋文慧 李垠松 李萌 周玉阳 黄卫军 于 2019-08-16 设计创作，主要内容包括：本发明提供一种聚合物保偏光纤,所述光纤包括光纤包层和光纤芯,所述光纤包层包裹所述光纤芯；所述光纤芯的材料为聚甲基丙烯酸甲脂、聚碳酸酯和聚四氟乙烯的掺杂共聚物；所述光纤包层的材料为全氟丙基全氟乙烯基醚和聚四氟乙烯的共聚物与聚甲基丙烯酸甲脂、聚四氟乙烯的共聚掺杂物。本发明的光纤由共聚聚合物材料构建,可使用在可见光波段,在液氮温度冷冻杀菌和蒸汽温度高温消毒等场合下均能保持光纤性能,满足生物医疗领域对传输介质的环境要求；采用光纤芯与应力区浇注聚合的方式加工制备,避免了传统石英保偏光纤的机械打孔工艺带来的较大的加工应力,强化了双折射效应施加的效率,光纤设计灵活、成本低。(The present invention provides a kind of polymer polarization maintaining optical fibre, and the optical fiber includes fibre cladding and fiber cores, and the fibre cladding wraps up the fiber cores；The material of the fiber cores is the doping copolymer of polymethyl methacrylate, polycarbonate and polytetrafluoroethylene (PTFE)；The material of the fibre cladding is the copolymer of perfluoro propyl perfluoroalkyl vinyl ether and polytetrafluoroethylene (PTFE) and the copolymerization dopant of polymethyl methacrylate, polytetrafluoroethylene (PTFE).Optical fiber of the invention is constructed by copolymerized polymer material, may be used at visible light wave range, is able to maintain optical fiber property under the occasions such as liquid nitrogen temperature cold sterilized and vapor (steam) temperature high-temperature sterilization, meets environmental requirement of the biologic medical field to transmission medium；Preparation is processed in such a way that fiber cores polymerize with stressed zone casting, the biggish machining stress of mechanical drilling process bring of conventional quartz polarization maintaining optical fibre is avoided, enhances the efficiency of birefringence effect application, fiber design is flexible, at low cost.)

1. a kind of polymer polarization maintaining optical fibre, which is characterized in that the optical fiber includes fibre cladding and fiber cores, the fibre cladding Wrap up the fiber cores；

The material of the fiber cores is in polymethyl methacrylate doped with polycarbonate, polytetrafluoroethylene (PTFE)；

The material of the fibre cladding is in polymethyl methacrylate doped with polytetrafluoroethylene (PTFE), perfluoro propyl perfluorovinyl sulfide The copolymer of ether and polytetrafluoroethylene (PTFE).

2. polymer polarization maintaining optical fibre according to claim 1, which is characterized in that the geometry of the fiber cores cross section For ellipse.

3. polymer polarization maintaining optical fibre according to claim 1 or 2, which is characterized in that relative to polymethyl methacrylate, The doping component mass content range of the dopant material of the fiber cores is respectively as follows:

The mass content DPC of polycarbonate₁₀₁For 1%-10%；

The mass content DPTFE of polytetrafluoroethylene (PTFE)₁₀₁For 0.1%-3%.

4. polymer polarization maintaining optical fibre according to claim 1 or 2, which is characterized in that relative to polymethyl methacrylate, The doping component mass content range of the dopant material of the fibre cladding is respectively as follows:

The mass content DPTFE of polytetrafluoroethylene (PTFE)₁₀₂For 0.5%-3%；

The mass content DPFA of the copolymer of perfluoro propyl perfluoroalkyl vinyl ether and polytetrafluoroethylene (PTFE)₁₀₂For 1%-8%.

5. polymer polarization maintaining optical fibre according to claim 1 or 2, which is characterized in that

The refractive index value n1 of the fiber cores is 1.47-1.523；

The refractive index value n2 of the fibre cladding is 1.46-1.50；

Fiber cores are 0.11%-2.1% relative to the refringence percentage △ 12 of fibre cladding.

6. polymer polarization maintaining optical fibre according to claim 1 or 2, which is characterized in that

The major diameter of the fiber cores and the ratio h of minor axis diameter are 1.05-9；

The major diameter D1b of fiber cores is 3 μm -40 μm；The minor axis diameter D1a of fiber cores is 3 μm -8 μm；

The diameter D2 of the fibre cladding is 33 μm -110 μm.

7. a kind of mold of the described in any item polymer polarization maintaining optical fibres of manufacturing claims 1-6, which is characterized in that

The mold includes shell and type core, and the shell includes cylindrical section and funnel section, and the type core is cylindroid, the type At cylindrical section center, the funnel section top has a feed opening for core setting, the upper end of the lower end of the funnel section and cylindrical section without Seam connection.

8. mold according to claim 7, which is characterized in that the material of the type core is quartz glass, and the type core can Disassembly be arranged at cylindrical section center, the height of the type core is identical with the height of the cylindrical section, the axial line of the type core and The axial line of the cylindrical section shell is overlapped.

9. mold according to claim 7, which is characterized in that the enclosure material is quartz glass, the circle of the shell Shell of column bottom center has mounting hole, and the type core is fixed in the mounting hole.

10. a kind of method using the described in any item mold manufacture polymer polarization maintaining optical fibres of claim 7-9, feature exist In described method includes following steps:

Make fibre cladding prefabricated pipe, comprising:

The copolymerization dopant material of the fibre cladding is added in mold from the feed opening of mold upper end；

Copolymerization dopant material in the mold is heated, while rotating the mold, so that doping material is uniformly distributed, shape At fibre cladding prefabricated pipe；

Extraction type core forms nozzle, is inverted the mold, and fibre cladding prefabricated pipe is added from nozzle in fiber cores dopant material In；

Fibre cladding prefabricated pipe inner fiber core copolymerization dopant material is heated, while rotating the fibre cladding prefabricated pipe, Form preform.

11. the method for manufacture polymer polarization maintaining optical fibre according to claim 10, which is characterized in that

Wire drawing is carried out to the preform and forms polymer polarization maintaining optical fibre, the preform carries out the wire drawing temperature of wire drawing Spending T3 is 120 DEG C -160 DEG C.

12. the method for manufacture polymer polarization maintaining optical fibre according to claim 10, which is characterized in that

Infrared heating is used to the copolymerization dopant material heating of fibre cladding, the temperature T2 of the infrared heating is 105 DEG C -140 DEG C, the time t2 of the infrared heating is 8h-20h；The angular speed s2 for rotating the mold is 5rad/s-30rad/s.

13. the method for manufacture polymer polarization maintaining optical fibre according to claim 10, which is characterized in that

Heating is carried out using ultrasonic Wave heating, the ultrasound Wave heating to fibre cladding prefabricated pipe inner fiber core copolymerization dopant material Temperature T1 be 85 DEG C -110 DEG C, it is described ultrasound Wave heating time t1 be 3h-9h；Rotate the angle of the fibre cladding prefabricated pipe Speed s1 is 1rad/s-10rad/s.

Technical field

The present invention relates to technical field of optical fiber, and in particular to a kind of polymer polarization maintaining optical fibre, manufacture mold and method.

Background technique

Polarization maintaining optical fibre is called polarization-maintaining fiber, is used for transmission linearly polarized light, is widely used in space flight, aviation, navigation, life The every field of the national economy such as object medical technology.Polarization maintaining optical fibre can solve the problem of polarization state variation, several by optical fiber Design in what size generates stronger birefringence effect, to eliminate influence of the stress to incident light polarization state.

Summary of the invention

Aiming at the above defects or improvement requirements of the prior art, it is flexible oval to provide a kind of visible light high-low temperature resistant by the present invention Core pattern polymer polarization maintaining optical fibre, geometry birefringent structure design of the polymer polarization maintaining optical fibre using oval core pattern, unstressed list Meta structure design；Realize that visible wavelength uses the use of window polarization maintaining optical fibre by polymer light fiber material, to meet life The requirement of object medical monitoring sensor-based system provides reliable and stable easy to produce for high-precision short wavelength's Low Cost Sensing System The support of polarization maintaining optical fibre product；Using the material modification of copolymerization doping, the temperature for promoting polymer polarization maintaining optical fibre material medium is stablized Property, meet biologic medical monitoring sensor and needs liquid nitrogen frozen and the requirement of the low temperature hot environment of moise-heat sterilization；Polymer simultaneously Polarization maintaining optical fibre eliminates quartz material and resin coating material compared to quartzy polarization maintaining optical fibre also without design outer layer coat Thermal stress performance difference, reduce under temperature environment situation of change sensing accuracy caused by asymmetric thermal stress mismatch and decline Enhance with noise, provide suitable polarization maintaining optical fibre product design for the field of different application demand, is sensed in small-sized biological medical treatment The application of device field extension polymer polarization maintaining optical fibre.

The present invention to solve above-mentioned technical problem used by technical solution are as follows:

A kind of polymer polarization maintaining optical fibre, the optical fiber include fibre cladding and fiber cores, described in the fibre cladding package Fiber cores；

The material of the fiber cores is the doping copolymer of polymethyl methacrylate and polycarbonate and polytetrafluoroethylene (PTFE)；

The material of the fibre cladding is polymethyl methacrylate and polytetrafluoroethylene (PTFE) and perfluoro propyl perfluorovinyl sulfide The copolymerization dopant of the copolymer of ether and polytetrafluoroethylene (PTFE).

Specifically, the geometry of the fiber cores cross section is ellipse.

Specifically, relative to polymethyl methacrylate, the doping component mass content of the dopant material of the fiber cores Range is respectively as follows:

The mass content DPC of polycarbonate₁₀₁For 1%-10%；

The mass content DPTFE of polytetrafluoroethylene (PTFE)₁₀₁For 0.1%-3%.

Specifically, the doping component quality of the dopant material of the fibre cladding contains relative to polymethyl methacrylate Amount range is respectively as follows:

The mass content DPTFE of polytetrafluoroethylene (PTFE)₁₀₂For 0.5%-3%；

The mass content DPFA of the copolymer of perfluoro propyl perfluoroalkyl vinyl ether and polytetrafluoroethylene (PTFE)₁₀₂For 1%-8%.

Specifically, the refractive index value n1 of the fiber cores is 1.47-1.523；

The refractive index value n2 of the fibre cladding is 1.46-1.50；

Fiber cores are 0.11%-2.1% relative to the refringence percentage △ 12 of fibre cladding.

Specifically, the major diameter of the fiber cores and the ratio h of minor axis diameter are 1.05-9；

The major diameter D1b of fiber cores is 3 μm -40 μm；The minor axis diameter D1a of fiber cores is 3 μm -8 μm；

The diameter D2 of the fibre cladding is 33 μm -110 μm.

The present invention also provides a kind of molds for manufacturing above-mentioned polymer polarization maintaining optical fibre, specifically,

The mold includes shell and type core, and the shell includes cylindrical section and funnel section, and the type core is cylindroid, institute The setting of type core is stated at cylindrical section center, the funnel section top has a feed opening, the lower end of the funnel section and cylindrical section it is upper End seamless connection.

Specifically, the material of the type core is quartz glass, the type core is detachably arranged at cylindrical section center, the type The height of core is identical as the height of the cylindrical section, and the axial line of the type core is overlapped with the axial line of the cylindrical section shell.

Specifically, the enclosure material is quartz glass, the cylindrical section bottom center of the shell has mounting hole, described Type core is fixed in the mounting hole.

The present invention also provides a kind of methods using above-mentioned mold manufacture polymer polarization maintaining optical fibre, and the method includes such as Lower step:

Make fibre cladding prefabricated pipe, comprising:

The copolymerization dopant material of the fibre cladding is added in mold from the feed opening of mold upper end；

Copolymerization dopant material in the mold is heated, while rotating the mold, so that doping material uniformly divides Cloth forms fibre cladding prefabricated pipe；

Extraction type core forms nozzle, is inverted the mold, and fiber cores dopant material is prefabricated from nozzle addition fibre cladding Guan Zhong；

Fibre cladding prefabricated pipe inner fiber core copolymerization dopant material is heated, while it is prefabricated to rotate the fibre cladding Pipe forms preform.

Specifically, further including carrying out wire drawing to the preform to form polymer polarization maintaining optical fibre, the optical fiber prefabricating The wire-drawing temperature T3 that stick carries out wire drawing is 120 DEG C -160 DEG C.

Specifically, the copolymerization dopant material heating to fibre cladding uses infrared heating, the temperature T2 of the infrared heating It is 105 DEG C -140 DEG C, the time t2 of the infrared heating is 8h-20h；The angular speed s2 for rotating the mold is 5rad/s- 30rad/s。

Heating is carried out using ultrasonic Wave heating, the ultrasonic wave to fibre cladding prefabricated pipe inner fiber core copolymerization dopant material The temperature T1 of heating is 85 DEG C -110 DEG C, and the time t1 of the ultrasound Wave heating is 3h-9h；Rotate the fibre cladding prefabricated pipe Angular speed s1 be 1rad/s-10rad/s.

By above embodiment, the present invention provides a kind of polymer polarization maintaining optical fibre, which is used The geometry birefringent structure of oval core pattern designs, unstressed cellular construction design.Visible light is realized by polymer light fiber material Wavelength uses the use of window polarization maintaining optical fibre, thus meet the requirement of biologic medical monitoring sensor-based system, it is short for high-precision Wavelength Low Cost Sensing System provides reliable and stable polarization maintaining optical fibre product support easy to produce.Material using copolymerization doping changes Property, the temperature stability of polymer polarization maintaining optical fibre material medium is promoted, meets biologic medical monitoring sensor and needs liquid nitrogen frozen With the low temperature hot environment requirement of moise-heat sterilization.Polymer polarization maintaining optical fibre is also without design outer layer coat simultaneously, compared to stone English polarization maintaining optical fibre eliminates the difference of the thermal stress performance of quartz material and resin coating material, reduces temperature environment variation In the case of the decline of sensing accuracy caused by asymmetric thermal stress mismatch and noise enhancing, the field for different application demand provides conjunction Suitable polarization maintaining optical fibre product design, in the application of small-sized biological medical treatment transducer field extension polymer polarization maintaining optical fibre.

The present invention in terms of existing technologies, at least also has the advantage that

(1) optical fiber integral material is copolymerized doping building by polymer material and is formed, in view of polymer material medium visible Light (400nm-700nm) wavelength is lost with lower intrinsic material, optical fiber is had in visible light wave range preferable Transmission characteristic may be used at medical treatment sensing, passes the application fields such as picture, monitoring.

(2) polymer material is copolymerized doped fiber, can bear the environmental requirement of low temperature and high temperature, kills in liquid nitrogen temperature freezing Under the occasions such as bacterium and vapor (steam) temperature high-temperature sterilization, it is able to maintain optical fiber property, biologic medical field is better meet and is situated between to transmission The environmental requirement of matter.

(3) fiber core layer and covering entire body are polymer copolymerization dopant materials, without re-coating outside protection coat, The coating processes requirement for reducing fibre-optical drawing also avoids the bearing without material thermal stress mismatch of fibre cladding and coat Face is rung, and is also further reduced the geometric dimension of optical fiber, is enhanced the softness of optical fiber, for biological medical application fields pair Optical fiber material softness requires to provide guarantee.

(4) optical fiber avoids the birefringent temperature of stress type using the birefringent structure design of geometrical stress of oval core pattern Sensitivity characteristic is spent, the temperature stability of polarization maintaining optical fibre birefringenct property is improved, reduces the complexity of technique.

(5) mode that casting polymerization forming can be used in fiber cores and stressed zone carries out processing preparation, avoids conventional quartz The biggish machining stress of mechanical drilling process bring of polarization maintaining optical fibre enhances the efficiency of birefringence effect application, pours work Skill is that being adjusted flexibly for core packet ratio provides biggish technique convenience, and fiber design is flexible, and cost reduces.

Detailed description of the invention

Fig. 1 is the radial structure schematic diagram of Inventive polymers polarization maintaining optical fibre.

Fig. 2 is the stress axis direction index distribution schematic diagram of Inventive polymers polarization maintaining optical fibre.

Fig. 3 is the fibre cladding prefabricated pipe doping casting polymerization schematic diagram of Inventive polymers polarization maintaining optical fibre.

Fig. 4 is the elliptical light fibre core doping casting polymerization schematic diagram of Inventive polymers polarization maintaining optical fibre.

Specific embodiment

In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below Not constituting a conflict with each other can be combined with each other.

The present invention provides a kind of flexible oval core pattern polymer polarization maintaining optical fibre of visible light high-low temperature resistant, as shown in Figure 1, described Optical fiber includes the fiber cores 101 for being wrapped in 102 center of fibre cladding, and the material of fiber cores 101 is polymethyl methacrylate (polymethyl methacrylate, be abbreviated as PMMA) and polycarbonate (Polycarbonate is abbreviated as PC) He Jusi The doping copolymer of vinyl fluoride (Poly tetra fluoroethylene, be abbreviated as PTFE), the cross section of fiber cores 101 are several What shape is designed as ellipse, and by changing the symmetrical structure of Medium Wave Guide, generation geometry is birefringent, constitutes polarization maintaining optical fibre structure Design, reaches use demand.

The material of fibre cladding 102 is that (polymethyl methacrylate, is abbreviated as polymethyl methacrylate PMMA) with polytetrafluoroethylene (PTFE) (Poly tetra fluoroethylene, be abbreviated as PTFE) and perfluoro propyl perfluoroalkyl vinyl ether With the copolymerization dopant of the copolymer (Polytetrafluoro ethylene, be abbreviated as PFA) of polytetrafluoroethylene (PTFE).

The material of fiber cores is that polycarbonate, polytetrafluoroethylene (PTFE) are adulterated in polymethyl methacrylate.The material of fibre cladding Material is the copolymerization that polytetrafluoroethylene (PTFE), perfluoro propyl perfluoroalkyl vinyl ether and polytetrafluoroethylene (PTFE) are adulterated in polymethyl methacrylate Object.

Fibre-optic waveguide dielectric material is constructed by polymer material to be formed, compared to quartz medium, polymer material medium Guide-lighting low-loss band is in visible light wave range, so that polarization maintaining optical fibre of the invention can satisfy making for biologic medical visible wavelength Use window；Since entire body itself is polymer material, without the protection coat outside re-coating, reduce drawing optical fibers coating Technique requirement, also avoid the negative effect without material thermal stress mismatch of fibre cladding and coat.By means of polymerization The structure design realization of the low temperature easy processing characteristic of object material medium, polymer polarization maintaining optical fibre is more convenient, can keep well The structural birefringence characteristic of polarization maintaining optical fibre reduces processing and manufacturing difficulty, reduces cost.

Specifically, as shown in Figure 1, the optical fiber includes the fine fiber cores 101 for being wrapped in fibre cladding center, fiber cores 101 material is polymethyl methacrylate (polymethyl methacrylate, be abbreviated as PMMA) and polycarbonate (Polycarbonate is abbreviated as PC) and polytetrafluoroethylene (PTFE) (Polytetra fluoroethylene, be abbreviated as PTFE) mixes Miscellaneous copolymer.Relative to the polymethyl methacrylate of fiber cores 101, the doping copolymer component mass content of fiber cores 101 It is respectively as follows: the mass content DPC of polycarbonate₁₀₁For 1% < DPC₁₀₁< 10%；The mass content DPTFE of polytetrafluoroethylene (PTFE)₁₀₁For 0.1% < DPTFE₁₀₁< 3%.

The material of the fibre cladding 102 of the optical fiber package is polymethyl methacrylate (polymethyl Methacrylate is abbreviated as PMMA) with polytetrafluoroethylene (PTFE) (Poly tetra fluoroethylene, be abbreviated as PTFE) and The copolymer (Polytetrafluoro ethylene, be abbreviated as PFA) of perfluoro propyl perfluoroalkyl vinyl ether and polytetrafluoroethylene (PTFE) Copolymerization dopant.Relative to the polymethyl methacrylate of fibre cladding 102, each dopant material of fibre cladding 102 is mixed Miscellaneous constituent mass content range is respectively as follows: the mass content DPTFE of polytetrafluoroethylene (PTFE)₁₀₂For 0.5% < DPTFE₁₀₂< 3%；Perfluor The mass content DPFA of the copolymer of propyl perfluoroalkyl vinyl ether and polytetrafluoroethylene (PTFE)₁₀₂For 1% < DPFA₁₀₂< 8%.

Preferably, as shown in Fig. 2, the refractive index value n1 of the fiber cores 101 is 1.47-1.523；Fiber cores 101 are opposite In the calculation formula of the refringence percentage △ 12 of fibre cladding 102 are as follows:

Preferably, as shown in Figure 1, fiber cores 101 are relative to the refringence percentage △ 12 of fibre cladding 102 0.11%-2.1%.The major diameter D1b of fiber cores 101 is 3 μm -40 μm.The minor axis diameter D1a of fiber cores 101 is 3 μm=8 μ m.The major diameter of fiber cores 101 and the ratio h of minor axis diameter are 1.05-9.

Preferably, the refractive index value n2 of the fibre cladding 102 is 1.46-1.50.The diameter D2 of fibre cladding 101 is 33 μm-110μm。

The present invention also provides a kind of molds for manufacturing polymer polarization maintaining optical fibre.

Such as Fig. 3, the mold includes shell 201 and type core 202, and the shell includes cylindrical section 2011 and funnel section 2012, the type core is cylindroid, and at cylindrical section center, the funnel section top has feed opening 203, institute for the type core setting The upper end of the lower end and cylindrical section of stating funnel section is seamlessly connected.

Specifically, the material of the type core is quartz glass, the type core is detachably arranged at cylindrical section center, the type The height of core is identical as the height of the cylindrical section, and the axial line of the type core is overlapped with the axial line of the cylindrical section shell.

Specifically, the enclosure material is quartz glass, the cylindrical section bottom center of the shell has mounting hole, described Type core is fixed in the mounting hole.

The production method of polymer polarization maintaining optical fibre of the invention are as follows: the production method is copolymerized molding using high-temperature fusion Method makes preform, then carries out wire drawing to prefabricated rods and is fabricated to polymer polarization maintaining optical fibre.

As shown in figure 3, fibre cladding polymer copolymerization material is poured into mold from the feed opening 203 of quartz glass mold In, mold bottom center is fixed with the quartz pushrod 202 of an ellipse, material pour into after by the way of infrared heating in mold Polymer copolymerization material heated, while rotation uniform operation is carried out to mold during polymerization.

After the above method completes covering prefabricated pipe, mold materials are demoulded, extract cylindroid quartzy glass out The center ellipse core pattern empty slot of glass type plug, covering prefabricated pipe is reserved, and nozzle 204 is formed.As shown in figure 4, mold is fallen It sets, fiber cores polymer copolymerization material is poured into covering prefabricated pipe from nozzle 204, the side that material is heated after pouring into using ultrasonic wave Formula heats pipe inner fiber core copolymeric material, while carrying out rotating uniform behaviour to covering prefabricated pipe during polymerization Make.Form preform.

Specifically, the production method, which is copolymerized molding method using high-temperature fusion doping, makes preform, then Wire drawing is carried out to prefabricated rods and is fabricated to polymer polarization maintaining optical fibre.As shown in figure 3, by fibre cladding dopant material from quartz glass mould The feed opening 203 of tool pours into polymerization mold, and polymerization mold bottom center is fixed with the quartz pushrod 202 of an elliptic cylinder, material The copolymerization doping material in mold is heated by the way of infrared heating after pouring into, fibre cladding polymerization temperature T2 is 105 DEG C -140 DEG C, polymerization time t2 is 8h-20h, rotation process is carried out to mold during polymerization, so that dopant material is uniform Distribution, the angular speed s2 of rotation are 5rad/s-30rad/s.

After the above method completes fibre cladding prefabricated pipe, mold is demoulded, extraction type core, fibre cladding is pre- The center elliptic cylinder core empty slot of tubulation is reserved, and nozzle 204 is formed.As shown in figure 4, by fiber cores dopant material from nozzle 204 pour into fibre cladding prefabricated pipe, and material is copolymerized dopant material to pipe inner fiber core by the way of ultrasonic wave heating after pouring into It is heated, there is the performance for being precisely controlled heating region using ultrasonic wave, polymerization temperature T1 is 85 DEG C -110 DEG C, core polymerization Time t1 is 3h-9h, carries out rotation process to fibre cladding prefabricated pipe during polymerization, so that doping material is uniformly distributed, The angular speed s1 of rotation is 1rad/s-10rad/s.Form preform.

In addition, the production method, which is copolymerized molding method using high-temperature fusion doping, makes preform, then to pre- Stick processed carries out wire drawing and is fabricated to polymer polarization maintaining optical fibre.Preferably, wire-drawing temperature T3 is 120 DEG C -160 DEG C.