Preparation method of chalcogenide glass tapered fibers

A technology of chalcogenide glass and tapered optical fiber, which is applied in glass manufacturing equipment, manufacturing tools and other directions, can solve the problems of restricting the application and development of chalcogenide glass tapered fiber, low mechanical strength, poor controllability, etc. The effect of short production cycle and reduced mode field area

Active Publication Date: 2015-05-13
NINGBO UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

The existing chalcogenide glass optical fiber tapering method has poor controllability and low efficiency. In addition, the unique mechanical strength of chalcogenide glass optical fiber is low, easy to break, and easy to oxidize when heated, which seriously restricts the chalcogenide glass tapered optical fiber. Application and Development in Special Infrared Optical Devices

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  • Preparation method of chalcogenide glass tapered fibers
  • Preparation method of chalcogenide glass tapered fibers
  • Preparation method of chalcogenide glass tapered fibers

Examples

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Embodiment 1

[0023] The chalcogenide glass (Ge 10 Sb 20 Se 70 ) the preparation method of tapered optical fiber, comprises the steps:

[0024] 1) in Ge 10 Sb 20 Se 70 The cylindrical surface of the chalcogenide glass optical fiber preform is wound to form a polyethersulfone resin layer with a certain thickness. Stable and uniform drawing at 340°C to form chalcogenide glass optical fibers with an outer diameter of several hundred meters in the range of 250-330 μm;

[0025] 2) Cut a section of about 10 cm in length from the above-mentioned chalcogenide glass optical fiber, and then fix the two ends of the section of optical fiber with optical fiber clamps, such as figure 1 as shown, figure 1 Among them, 1 is the optical fiber before tapering, and 2 is the optical fiber clamp. The optical fiber clamp 2 is connected to the output end of the stepping motor (not shown in the figure). The pulling speed of the stepping motor is controllable, and the sulfur can be controlled by the stepping ...

Embodiment 2

[0028] Ge of Example 2 15 Sb 10 Se 75 The preparation method of chalcogenide glass tapered optical fiber comprises the following steps:

[0029] 1) in Ge 15 Sb 10 Se 75 The cylindrical surface of the chalcogenide glass optical fiber preform is wound to form a polyetherimide resin layer with a certain thickness, and the measured outer diameter is Ф26mm, and then the chalcogenide glass optical fiber preform is placed on the fiber drawing tower in an inert gas atmosphere protection environment , drawn at 360°C at a stable and uniform speed to form a chalcogenide glass optical fiber with a length of several hundred meters and an outer diameter in the range of 250-330 μm;

[0030] 2) Cut a section of about 10cm in length from the above-mentioned chalcogenide glass optical fiber, and then fix the two ends of the section of optical fiber with optical fiber clamps. The optical fiber clamps are connected to the output end of the stepping motor, and the pulling speed of the steppin...

Embodiment 3

[0033] Ge of Example 3 17 Ga 4 Sb 10 Se 69 The preparation method of chalcogenide glass tapered optical fiber comprises the following steps:

[0034] 1) in Ge 17 Ga 4 Sb 10 Se 69 The cylindrical surface of the chalcogenide glass optical fiber preform is wound to form a polyetherimide resin layer with a certain thickness, and the measured outer diameter is Ф26mm, and then the chalcogenide glass optical fiber preform is placed on the fiber drawing tower in an inert gas atmosphere protection environment , drawn at 420°C at a stable and uniform speed to form a chalcogenide glass optical fiber with a length of several hundred meters and an outer diameter in the range of 250-330 μm;

[0035] 2) Cut a section of about 10cm in length from the above-mentioned chalcogenide glass optical fiber, and then fix the two ends of the section of optical fiber with optical fiber clamps. The optical fiber clamps are connected to the output end of the stepping motor, and the pulling speed of...

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Abstract

The invention discloses a preparation method of chalcogenide glass tapered fibers. Chalcogenide glass fibers are tapered by the aid of accurate temperature control of a specific electric-heating coil and traction of a precision stepping motor, important parameters such as taper zone lengths, taper zone outer diameters and the like of the tapered fibers are controlled through control on the heating temperature and the tapering traction speed, and the chalcogenide glass tapered fibers with different taper zone lengths and taper zone outer diameters are drawn accurately. The method is simple in technology, high in operability, good in repeatability and high in accuracy and can effectively solve problems that the chalcogenide glass fibers are broken easily during tapering, fiber core diameters and taper zone lengths are difficult to control accurately and the like, the fiber core diameters of the prepared chalcogenide glass tapered fibers with nanoscale or submicron diameters range from 700 mu m to 1,000 mu m, the taper zone lengths range from 3 cm to 7 cm, the production cycle is short, the success rate is high, the chalcogenide glass tapered fibers can be applied to new technical fields of coupling of micro-waveguides, generation of super-continuum spectrum and the like, and research and application fields of the chalcogenide glass tapered fibers are greatly extended.

Description

technical field [0001] The invention belongs to the technical field of optical device preparation, and relates to a preparation method of a micro-nano optical fiber, in particular to a preparation method of a chalcogenide glass tapered optical fiber. Background technique [0002] Tapered optical fiber is the optical fiber obtained by heating the conventional optical fiber to a softened state, and then performing thinning treatment. Tapered optical fiber is an important post-processing technology of optical fiber. The diameter of the optical fiber can be changed by tapering and the coupling of the optical field between multiple optical fibers can be realized, which is used in the manufacture of optical fiber devices such as couplers, wavelength division multiplexers and beam combiners. Moreover, the devices made by the tapering technology have the characteristics of stable performance and simple process requirements. In recent years, with the development of the tapering theo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/15
Inventor 戴世勋孙亚男王训四吕社钦李超然刘永兴张培晴
Owner NINGBO UNIV
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