CN114815008B - Preparation method of micro-bottle lens with composite structure and micro-bottle lens with composite structure - Google Patents
Preparation method of micro-bottle lens with composite structure and micro-bottle lens with composite structure Download PDFInfo
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- CN114815008B CN114815008B CN202210356452.8A CN202210356452A CN114815008B CN 114815008 B CN114815008 B CN 114815008B CN 202210356452 A CN202210356452 A CN 202210356452A CN 114815008 B CN114815008 B CN 114815008B
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- G02B3/00—Simple or compound lenses
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2552—Splicing of light guides, e.g. by fusion or bonding reshaping or reforming of light guides for coupling using thermal heating, e.g. tapering, forming of a lens on light guide ends
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Abstract
According to the preparation method of the micro-bottle lens with the composite structure and the micro-bottle lens with the composite structure, trace polymer micro-liquid is adhered to the semi-conical micro-optical fiber, one or more sections of adhered micro-polymer micro-liquid is controllably transferred to the other semi-conical micro-optical fiber to form a cover film with a bottle-shaped outline, the cover film and the micro-optical fiber form the micro-bottle lens with the composite structure, and finally the liquid cover film part of the micro-bottle lens with the composite structure is converted into a solid state in a photo-curing or thermal curing mode to form the micro-bottle lens with the composite structure, which is stable and easy to operate.
Description
Technical Field
The application relates to the technical field of optical elements, in particular to a preparation method of a micro-bottle lens with a composite structure and the micro-bottle lens with the composite structure.
Background
The micro-bottle lens with a composite structure is named as spindle section microfiber, micro-bottle resonant cavity and the like in early stage, belongs to the fields of fiber and optical microcavity, wherein the spindle section microfiber is widely applied in the fields of water collection, oil-water separation, micro-flow control, self cleaning and the like, and the micro-bottle resonant cavity has important application in the fields of delay line, micro-laser, nonlinear optics, optomechanical, sensing and the like. The earliest preparation method, which is the most similar to the implementation scheme of the application, was proposed by the inventor in 2013 and 2014 (patent number: ZL201310268542.2; applied Optics,2014,53: 7819-7824). In the application patent ZL201310268542.2, a micro-bottle resonant cavity of an optical adhesive patch is prepared by relying on a bare optical fiber or a micro-optical fiber, and the material is NOA61 optical adhesive patch produced by Norland company in the United states, and the application of the micro-bottle resonant cavity is that a whispering gallery film optical micro-resonant cavity device is prepared by dripping NOA61 optical adhesive patch drops into the taper of a full-cone optical fiber formed by a standard single mode optical fiber or a hot-drawn method through a semi-cone optical fiber, and the effects of liquid surface tension and viscous force form a single bottle-shaped micro-resonant cavity on the bare optical fiber or the micro-optical fiber; in the publication, "Applied Optics,2014,53:7819-7824," NOA61 optical adhesive patch produced by Norland corporation was also used, and the optical micro-resonator was self-assembled on the micro-fiber by wetting the adhesive patch on the micro-fiber and by liquid surface tension acting on the micro-fiber to form a continuous plurality of bottle-shaped structures, and the application field thereof was also whispering gallery optical microcavities.
The disadvantages of the prior art are mainly: 1) Because the manufactured devices are applied to optical microcavity devices, the optical adhesive patch has strict limiting conditions, and generally needs a wide light transmission bandwidth, low light attenuation rate, low shrinkage under light irradiation, high hardness after solidification and the like; 2) The method is that a half cone optical fiber is used to drop micro-drop into a full cone optical fiber to form a micro-bottle resonant cavity, obviously the drop-in mode needs to overcome the adhesion force of the micro-optical fiber by the gravity of the drop, so the micro-drop cannot be too small, otherwise, the micro-drop cannot be separated from the half cone micro-optical fiber; 3) The optical adhesive patch liquid attached to the micro-optical fiber is naturally broken and contracted by the aid of the full-cone optical fiber to form the micro-bottle resonant cavity, external manual control cannot be applied, and therefore the number and the size of the formed micro-bottle resonant cavity cannot be controlled.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a method for producing a stable, easy-to-handle compound micro-bottle lens and a compound micro-bottle lens that address the drawbacks of the prior art.
In order to solve the problems, the application adopts the following technical scheme:
the application provides a preparation method of a micro-bottle lens with a composite structure, which comprises the following steps:
providing two sections of semi-conical micro optical fibers, wherein the area with the same diameter at the thinnest part of one end of the semi-conical micro optical fiber is a conical waist area, and the area with the gradually smaller diameter between the bare optical fiber and the conical waist area is a conical transition area;
transferring the polymer micro-liquid to one of the sections of the tapered transition zone;
sliding the polymer micro-liquid along the tapered transition region to the tapered waist region and partially attaching to the semi-tapered micro-optical fiber;
the polymer liquid attached to the semi-conical micro optical fiber forms a plurality of tiny liquid drops;
transferring the micro liquid drops to the tapered waist of another section of the semi-tapered micro optical fiber;
transferring the tiny liquid drops at the cone waist of the other section of the semi-conical micro-optical fiber to form a liquid covering film, and forming a micro-bottle lens with a composite structure with the wrapped micro-optical fiber;
and curing the liquid covering film to form the solid micro-bottle lens with the composite structure.
In some of these embodiments, in the step of providing two lengths of semi-tapered micro-fiber, the method specifically comprises the steps of:
stripping the coating layer of the middle part of the optical fiber to obtain a bare optical fiber comprising a cladding layer and a core layer;
stretching the bare optical fiber to obtain a conical micro optical fiber;
and breaking the conical micro-optical fiber to form two sections of semi-conical micro-optical fiber.
In some of these embodiments, the optical fiber is a cylindrical optical fiber.
In some embodiments, in the step of stretching the bare optical fiber to obtain a tapered micro-optical fiber, the method specifically includes: and under the heating condition, stretching the bare optical fiber by adopting a stepping motor to obtain the conical micro optical fiber.
In some of these embodiments, the step of transferring the polymer micro-fluid to the tapered transition region of one of the half-tapered micro-fibers specifically comprises the steps of: the polymer micro-liquid, including uv glue or PDMS, was transferred to the tapered transition region of the semi-tapered micro-fiber using a syringe.
In some embodiments, in the step of sliding the polymer micro-liquid down the tapered transition region to the tapered waist region and partially attaching to the semi-tapered micro-optical fiber, the method specifically comprises the steps of:
erecting the semi-conical micro-optical fiber along the direction of the conical transition zone pointing to the conical waist zone, so that the polymer liquid drops slide down to the conical waist zone along the conical transition zone of the semi-conical micro-optical fiber under the action of gravity and are partially attached to the semi-conical micro-optical fiber.
In some embodiments, the step of transferring the micro-droplet to the taper of another section of the semi-tapered micro-optical fiber specifically includes the steps of: and transferring the tiny liquid drops to the tapered waist of another half-tapered micro optical fiber by using a precise mechanical control method.
In some embodiments, in the step of transferring the tiny droplets at the tapered waist of the other section of the half-cone-shaped micro-optical fiber to form a liquid cover film, and forming a micro-bottle lens of a composite structure with the wrapped micro-optical fiber, the liquid cover film is in a micro-bottle structure.
In some of these embodiments, one or more of the liquid cover films are transferred at the microfiber taper waist.
In some embodiments, the step of curing the liquid cover film to form a solid composite structure micro-bottle lens specifically comprises the steps of: and curing the liquid covering film through light or heat curing operation to form the solid micro-bottle lens with the composite structure.
In addition, the application also provides the composite structure micro-bottle lens prepared by the preparation method of the composite structure micro-bottle lens, wherein the composite structure micro-bottle lens comprises micro-optical fibers and a covering film for covering the micro-optical fibers, and the covering film is obtained by solidifying the liquid covering film.
By adopting the technical scheme, the application has the following beneficial effects:
according to the preparation method of the micro-bottle lens with the composite structure and the micro-bottle lens with the composite structure, trace polymer micro-liquid is adhered to the semi-conical micro-optical fiber, one or more sections of adhered micro-polymer micro-liquid is controllably transferred to the other semi-conical micro-optical fiber to form a cover film with a bottle-shaped outline, the cover film and the micro-optical fiber form the micro-bottle lens with the composite structure, and finally the liquid cover film part of the micro-bottle lens with the composite structure is converted into a solid state in a photo-curing or thermal curing mode to form the micro-bottle lens with the composite structure, which is stable and easy to operate.
The micro-bottle lens with the composite structure provided by the application can be used as a micro-lens and applied to the fields of light focusing, optical imaging, signal enhancement and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly explain the embodiments of the present application or the drawings used in the description of the prior art, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a method for manufacturing a micro-bottle lens with a composite structure.
Fig. 2 is a front view of a compound structured micro-bottle lens provided by the application.
Fig. 3 is a schematic structural diagram of the compound structure micro-bottle lens provided by the application in a left view direction.
Fig. 4 is a cross-sectional view of a composite structure micro-bottle lens provided by the present application.
Fig. 5 is a flowchart of the preparation of the compound-structured micro-bottle lens provided in embodiment 1 of the present application.
Fig. 6 is a composite structure micro bottle lens obtained by curing PDMS using a thermal curing method according to example 1 of the present application.
Fig. 7 is a microscopic image of a micro-bottle lens with a composite structure obtained by curing ultraviolet glue by a photo-curing method according to example 1 of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "horizontal", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent.
Referring to fig. 1, a step flow chart of a method for manufacturing a micro-bottle lens with a composite structure according to the present embodiment includes the following steps:
step S110: two lengths of half-tapered micro-fiber are provided.
In the embodiment, the semi-conical micro optical fiber is prepared by a hot-drawing method, and specifically comprises the following steps:
step S111: and stripping the coating layer of the middle part of the optical fiber to obtain the bare optical fiber comprising the cladding layer and the core layer.
Specifically, a section of cylindrical optical fiber with the length of more than 100mm is selected, and a coating layer with the length of about 30mm is stripped by a stripper in the middle of the cylindrical optical fiber to obtain a bare optical fiber comprising a cladding layer and a core layer.
It can be appreciated that the optical fiber provided in this embodiment may include a polymer optical fiber and a special material optical fiber; or natural fiber such as spider silk and silk, and silk artificial fiber can be used.
Specifically, the area with the diameter equal to the thinnest part of one end of the half-cone-shaped micro-optical fiber is a cone waist area, and the area with the diameter gradually smaller from the bare optical fiber to the cone waist area is a cone transition area.
Step S112: and stretching the bare optical fiber to obtain a conical micro optical fiber, wherein the area with the same diameter at the thinnest part in the middle is a conical waist area, and the area with the gradually smaller diameter between the bare optical fiber and the conical waist is a conical transition area.
In this embodiment, the step of stretching the bare fiber to obtain the tapered micro fiber specifically includes: and under the heating condition, stretching the bare optical fiber by adopting a stepping motor to obtain the conical micro optical fiber.
It will be appreciated that the taper and length of the tapered micro-fibers may be controlled by such factors as the stepper motor draw speed, draw distance, and the width of the heating flame.
Step S113: and breaking the conical micro-optical fiber to form two sections of semi-conical micro-optical fiber.
It will be appreciated that the tapered microfibers are stretched and broken in a manner that breaks the full-tapered microfibers from the middle to form semi-tapered microfibers.
Step S120: the polymer micro-liquid is transferred to the tapered transition region of one of the segments of the semi-tapered micro-optical fiber.
In this embodiment, in the step of transferring the polymer micro-liquid to the tapered transition region of one of the half-tapered micro-optical fibers, the method specifically includes the following steps: the polymer micro-liquid, including uv glue or PDMS, was transferred to the tapered transition region of the semi-tapered micro-fiber using a syringe.
Step S130: and sliding the polymer micro-liquid along the conical transition region to the conical waist region, and partially attaching to the semi-conical micro-optical fiber.
In this embodiment, in the step of sliding the polymer micro-liquid down the tapered transition region to the tapered waist region and partially adhering to the semi-tapered micro-optical fiber, the method specifically includes the following steps:
erecting the semi-conical micro-optical fiber along the direction of the conical transition zone pointing to the conical waist zone, so that the polymer liquid drops slide down to the conical waist zone along the conical transition zone of the semi-conical micro-optical fiber under the action of gravity and are partially attached to the semi-conical micro-optical fiber.
Step S140: the polymer liquid attached to the semi-tapered micro-optical fiber forms a plurality of micro droplets.
It will be appreciated that the adherent polymer liquid forms individual elongated droplets under the influence of surface tension, viscous forces, etc.
Step S150: and transferring the tiny liquid drops to the tapered waist of another section of the semi-tapered micro-optical fiber.
In this embodiment, in the step of transferring the micro droplet to the tapered waist of another section of the half-tapered micro optical fiber, the method specifically includes the steps of: and transferring the tiny liquid drops to the tapered waist of another half-tapered micro optical fiber by using a precise mechanical control method.
Further, micro droplets are transferred to the taper waist of the other half-cone-shaped optical fiber through a high-precision three-dimensional adjusting frame, and controllable preparation is realized in terms of quantity and size.
Step S160: and the tiny liquid drops transferred to the taper waist of the other section of the semi-conical micro-optical fiber form a liquid covering film, and form a micro-bottle lens with a composite structure with the wrapped micro-optical fiber.
It is understood that the micro-droplets transferred to the tapered waist form a liquid coating film of micro-bottle structure on the micro-optical fiber under the combined action of the liquid surface tension, viscous force and prato-rayleigh instability.
In this embodiment, the liquid cover film has a micro-bottle structure. One or more of the liquid cover films are transferred at the microfiber taper waist. Step S170: and curing the liquid covering film to form the solid micro-bottle lens with the composite structure.
In this embodiment, in the step of curing the liquid cover film to form a solid compound-structured micro-bottle lens, the method specifically includes the steps of: and curing the liquid covering film through light or heat curing operation to form the solid micro-bottle lens with the composite structure.
The preparation method of the micro-bottle lens with the composite structure comprises the steps of firstly adhering micro polymer micro liquid to a semi-conical micro optical fiber, then controllably transferring one or more sections of adhered micro polymer micro liquid to another semi-conical micro optical fiber to form a cover film with a bottle-shaped outline, forming the micro-bottle lens with the composite structure together with the micro optical fiber, and finally converting the liquid cover film part of the micro-bottle lens with the composite structure into a solid state in a photo-curing or thermal curing mode to form the micro-bottle lens with the composite structure, which is stable and easy to operate.
The application also provides the composite structure micro-bottle lens prepared by the preparation method of the composite structure micro-bottle lens, wherein the composite structure micro-bottle lens comprises micro-optical fibers and a covering film for covering the micro-optical fibers, and the covering film is obtained by solidifying the liquid covering film.
Referring to fig. 2 to 4, fig. 2 is a front view of a micro-bottle lens with a composite structure, wherein L is a length of the micro-bottle lens in a lateral direction. FIG. 3 is a schematic diagram of a compound-structured micro-bottle lens in the left-view direction, wherein the reference numeral D i To rely on the diameter of the columnar micro-optical fiber, D o The diameter in the middle of the film is covered with liquid for the micro-bottle lens. FIG. 4 is a cross-sectional view of a composite micro-bottle lens, L, D i And D o The length of the micro bottle lens in the transverse direction, the diameter of the columnar micro optical fiber and the diameter of the middle position of the liquid covering film are respectively.
It can be understood that the micro-bottle lens with the composite structure prepared by the application can form micro-bottle lenses with bottle-shaped outlines with different curvatures or bending degrees according to the viscosity and hardness of the used curable material and the interface effect between the curable material and the depending micro-fiber material; the above-mentioned composite-structure micro-bottle lens is not limited to the double-layer structure shown in this embodiment, and the semi-tapered micro-optical fiber may be a single material, may be a plurality of materials, may be a core-shell or concentric-circle structure formed of a plurality of layers of materials, and may be a single-layer or multi-layer structure of a curable polymer having a bottle-shaped profile, and the multi-layer structure may be a multi-layer structure formed of different types of curable materials, such as a photo-curable or thermosetting material, or may be a multi-layer structure formed of photo-curable or thermosetting material.
The micro-bottle lens with the composite structure provided by the embodiment of the application can be used as a micro-lens and applied to the fields of light focusing, optical imaging, signal enhancement and the like.
The above technical scheme of the present application will be described in detail with reference to specific embodiments.
Example 1
Referring to fig. 5, a flow chart of the preparation of the micro-bottle lens with the composite structure provided in this embodiment 1 is shown, wherein the cylindrical optical fiber 1, the optical fiber coating layer 2, the bare optical fiber 3, the full-cone-shaped micro-optical fiber 4, the semi-cone-shaped micro-optical fiber 5, the injector 6, the polymer micro-liquid 7, the polymer micro-liquid 8, the liquid coating film 9, the micro-droplet 10, the high-precision three-dimensional adjusting frame 11, the glass slide 12, the adhesive tape 13, the micro-optical fiber supporting structure 14, the transferred curable polymer micro-droplet 15, the liquid coating film 16, the curing instrument 17 and the micro-bottle lens with the composite structure 18. The detailed steps are already described above, and are not repeated here.
Referring to fig. 6, a micro-bottle lens obtained by curing PDMS by a thermal curing method according to this embodiment is shown. The covering film is PDMS polymer and the depending optical fiber is silicon dioxide, wherein the weight ratio of PDMS to SYLGARD 184 curing agent is 10:1, the oven temperature is 80 ℃, and the heating curing time is about 10 minutes. The parameters of the micro-bottle lens are: l=89.2 μm, D i ＝19.9μm、D o ＝38.4μm。
Referring to fig. 7, a microscopic image of a micro-bottle lens with a composite structure is obtained by curing ultraviolet glue in example 1 by a photo-curing method, wherein the ultraviolet glue is NOA61 glue patch manufactured by Norland company in the united states, and the ultraviolet light used for curing is an ultraviolet lamp with a wavelength of 365nm and a power of 60W, and the curing time is about 5-8 minutes. The parameters of the micro-bottle lens formed by the ultraviolet glue covering film and the depending micro-optical fiber are as follows: l=48.7 μm, D i ＝13.4μm、D o =20μm. By controlling the size of the support microfibers used and the amount of curable polymer transferred, a composite structured micro bottle lens can be controllably produced.
The foregoing description of the preferred embodiments of the present application has been provided for the purpose of illustrating the general principles of the present application and is not to be construed as limiting the scope of the application in any way. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other embodiments of the present application as will occur to those skilled in the art without the exercise of inventive faculty, are intended to be included within the scope of the present application.
Claims (10)
1. The preparation method of the micro-bottle lens with the composite structure is characterized by comprising the following steps of:
providing two sections of semi-conical micro optical fibers, wherein the area with the same diameter at the thinnest part of one end of the semi-conical micro optical fiber is a conical waist area, and the area with the gradually smaller diameter between the bare optical fiber and the conical waist area is a conical transition area;
transferring the polymer micro-liquid to one of the sections of the tapered transition zone;
sliding the polymer micro-liquid along the tapered transition region to the tapered waist region and partially attaching to the semi-tapered micro-optical fiber;
the polymer micro-liquid attached to the semi-conical micro-optical fiber forms a plurality of micro-droplets;
transferring the micro liquid drops to the tapered waist of another section of the semi-tapered micro optical fiber;
transferring the tiny liquid drops at the cone waist of the other section of the semi-conical micro-optical fiber to form a liquid covering film, and forming a micro-bottle lens with a composite structure with the wrapped micro-optical fiber;
solidifying the liquid covering film to form a solid micro-bottle lens with a composite structure;
in the step of providing two sections of semi-tapered micro-optical fibers, the method specifically comprises the following steps:
stripping the coating layer of the middle part of the optical fiber to obtain a bare optical fiber comprising a cladding layer and a core layer;
stretching the bare optical fiber to obtain a conical micro optical fiber;
and breaking the conical micro-optical fiber to form two sections of semi-conical micro-optical fiber.
2. The method of making a composite structure micro-bottle lens of claim 1, wherein the optical fiber is a cylindrical optical fiber.
3. The method for manufacturing a micro-bottle lens with a composite structure according to claim 1, wherein in the step of stretching the bare optical fiber to obtain a tapered micro-optical fiber, the method specifically comprises: and under the heating condition, stretching the bare optical fiber by adopting a stepping motor to obtain the conical micro optical fiber.
4. The method of claim 1, wherein the step of transferring the polymer micro-fluid to the tapered transition region of one of the half-tapered micro-fibers comprises the steps of: the polymer micro-liquid, including uv glue or PDMS, was transferred to the tapered transition region of the semi-tapered micro-fiber using a syringe.
5. The method of manufacturing a composite micro-bottle lens according to claim 1, wherein in the step of sliding the polymer micro-liquid down the tapered transition region to the tapered waist region and partially adhering to the semi-tapered micro-optical fiber, the method specifically comprises the steps of:
erecting the semi-conical micro-optical fiber along the direction of the conical transition zone pointing to the conical waist zone, so that the polymer micro-liquid slides down to the conical waist zone along the conical transition zone of the semi-conical micro-optical fiber under the action of gravity and is partially attached to the semi-conical micro-optical fiber.
6. The method for manufacturing a micro-bottle lens with a composite structure according to claim 1, wherein in the step of transferring the micro-droplet to the tapered waist of another section of the semi-tapered micro-optical fiber, the method specifically comprises the following steps: and transferring the tiny liquid drops to the tapered waist of another half-tapered micro optical fiber by using a precise mechanical control method.
7. The method of manufacturing a micro-bottle lens of composite structure according to claim 1, wherein in the step of forming a micro-bottle lens of composite structure with the wrapped micro-optical fiber, the micro-droplet transferred to the tapered waist of the other half-tapered micro-optical fiber forms a liquid cover film, and the liquid cover film has a micro-bottle structure.
8. The method of claim 6, wherein one or more of the liquid cover films are transferred at the tapered waist of the microfiber.
9. The method of manufacturing a composite-structured micro-bottle lens according to claim 1, wherein in the step of solidifying the liquid cover film to form a solid-state composite-structured micro-bottle lens, the method specifically comprises the steps of: and curing the liquid covering film through light or heat curing operation to form the solid micro-bottle lens with the composite structure.
10. A composite-structure micro-bottle lens prepared by the method for preparing a composite-structure micro-bottle lens according to claim 1, wherein the composite-structure micro-bottle lens comprises a micro-optical fiber and a cover film covering the micro-optical fiber.
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| CN202210356452.8A CN114815008B (en) | 2022-04-06 | 2022-04-06 | Preparation method of micro-bottle lens with composite structure and micro-bottle lens with composite structure |
| PCT/CN2022/142548 WO2023193485A1 (en) | 2022-04-06 | 2022-12-27 | Composite structure micro-bottle lens, and super-resolution imaging system based on micro-bottle lens |
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| KR20000008728A (en) * | 1998-07-15 | 2000-02-15 | 이계철 | Micro lens manufacturing method using liquid phase substance curable by uv |
| WO2004055563A1 (en) * | 2002-12-13 | 2004-07-01 | Corning Incorporated | Lensed fiber for optical interconnections |
| CN109613650A (en) * | 2018-12-04 | 2019-04-12 | 南方科技大学 | A kind of preparation method of ultraviolet glue optical taper |
| CN112731593A (en) * | 2021-01-05 | 2021-04-30 | 南通大学 | All-fiber micro-fiber reflector and preparation method thereof |
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