Method for polishing side surfaces of chalcogenide glass optical fibers
A technology of chalcogenide glass and optical fiber, which is applied in the direction of grinding/polishing equipment, parts of grinding machine tools, and devices for fixing grinding wheels, etc. It can solve problems such as uncontrollable thickness, low polishing efficiency, and fracture of chalcogenide glass optical fibers, and achieve Good positioning and protection effects, good application prospects, and low cost effects
Inactive Publication Date: 2021-11-19
NINGBO UNIV
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Problems solved by technology
At present, there is no specific method for the side polishing technology of chalcogenide glass optical fiber. They are all carried out according to the side polishing technology of the original quartz material. It is easy to break the chalcogenide glass fiber, the thickness cannot be controlled, and the polishing efficiency is low. Polishing technology and method of chalcogenide glass optical fiber
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[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0038] The side polishing method of the chalcogenide glass optical fiber of the embodiment comprises the following steps:
[0039] (1) Femtosecond laser processing of micro grooves
[0040] Build a femtosecond laser writing device, such as figure 1 As shown, the femtosecond laser writing device includes a femtosecond laser 11, a beam expander 12, an attenuator 13, an optical objective lens 14, and a displacement stage 15 arranged in sequence along the optical path. The displacement stage 15 is connected to a three-dimensional adjustment control device 16, The three-dimensional adjustment control device 16 is used to adjust the levelness of the displacement table 15 and the displacement speed of front and rear, left and right, and up and down; in the present embodiment, the multiple of the optical objective lens 14 is 10 times, and the femtose...
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Abstract
The invention discloses a method for polishing side surfaces of chalcogenide glass optical fibers. The method comprises the steps of femtosecond laser primary machining of a micro groove, chemical corrosion of the micro groove, pretreatment of the chalcogenide glass optical fibers, fixation of the chalcogenide glass optical fibers and side surface polishing of the chalcogenide glass optical fiber. The method is simple in step, high in operability, low in cost and high in efficiency, a plate glass substrate is machined through femtosecond laser direct writing and chemical corrosion, the finish machining micro groove machined in the plate glass substrate serves as a special polishing and grinding fixing groove for side surface polishing, multiple times of polishing are carried out with the depth of the finish machining micro groove as the reference of the polishing depth, the polishing and grinding depth, length, times, time and precision are controllable, a flat and smooth polishing surface is obtained, the problem that chalcogenide glass optical fibers are prone to breakage in a traditional polishing method is solved, efficient and high-quality side surface polishing is achieved while the performance of the chalcogenide glass optical fibers is finally guaranteed, and the method is suitable for micromachining of the chalcogenide glass optical fibers with different outer diameters of fiber cores, cladding layers and coating layers.
Description
Technical field [0001] The invention relates to an optical fiber micro-machining method, specifically a side polishing method of chalcogenide glass optical fiber. Background technique [0002] With the development of the field of micromachining, optical fiber technology is increasingly used in various fields. With the discovery and application of optical fiber evanescent fields, many new technologies have emerged, which has also made fiber side polishing technology appear in various fields, and many optical fiber devices have been developed. When part of the cladding of an optical fiber is removed, the ability of the remaining part of the optical fiber to bind light will be weakened, allowing more evanescent fields to leak out and have a stronger interaction with the outside world, and reflections and reflections may occur. Phenomena such as absorption and scattering can obtain the required external variables by establishing a reasonable relationship with the external condi...
Claims
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IPC IPC(8): B24B19/22B24B41/06B24B45/00B24B49/00C03C15/00
CPCB24B19/226B24B41/06B24B45/003B24B49/006C03C15/00
Inventor 张培晴杨怡涛李耀成甘文博周伟杰王训四戴世勋林常规
Owner NINGBO UNIV