A device for precisely controlling the preload in fbg writing
A technology of precise control and pre-tightening force, which is applied in the direction of instruments, optical waveguide light guides, optics, etc., can solve the problems that the optical fiber tension cannot be guaranteed to be the same, and the Bragg reflection wavelength has a large uncertainty
Active Publication Date: 2019-03-19
BEIJING INFORMATION SCI & TECH UNIV
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Moreover, in the current production process, it is necessary to directly apply pre-tightening force to the optical fiber through manual operation, and the applied size is only determined by experience, so it is impossible to guarantee the same pulling force every time the optical fiber is placed
The Bragg reflection wavelength uncertainty of the existing method of writing FBG is large
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The objects and functions of the present invention and methods for achieving the objects and functions will be clarified by referring to the exemplary embodiments. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in various forms. The essence of the description is only to help those skilled in the relevant art comprehensively understand the specific details of the present invention.
[0024] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps.
[0025] figure 1 It is a structural schematic diagram of a device for precisely controlling the pre-tightening force in FBG writing according to the present invention. Such as figure 1 As shown, it includes a first positioning fixture 101, a second positioning fixture 102, a first fixing ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an apparatus of precisely controlling pretightening force in FBG (Fiber Braag Grating) etching. The apparatus of precisely controlling pretightening force in FBG etching includes positioning clamps, fixing clamps, a pretightening force adjusting device and a pretightening force locking clamp, and can arbitrarily and continuously adjust the magnitude of the pretightening force in the bearable range of fiber, and at the same time the pretightening force can be stable and invariable after the magnitude of the pretightening force is fixed. During the fiber grating etching process, the apparatus of precisely controlling pretightening force in FBG etching can utilize the positioning clamp and the fixing clamp to perform positioning adjusting and clamping of fiber, can utilize the pretightening force adjusting device to apply the pretightening force to the fiber, can utilize the pretightening force adjusting device to precisely control the pretightening force to achieve the specified magnitude, and then utilizes the pretightening force locking clamp to fix the pretightening force to enable the magnitude of the pretightening force to be stable and invariable during the whole etching process so as to realize etching of the specified fiber grating reflection wavelength.
Description
technical field [0001] The invention relates to a device for controlling the pretightening force, in particular to a device for precisely controlling the pretightening force in FBG writing. Background technique [0002] Fiber Bragg Grating (hereinafter referred to as FBG) is one of the most important photonic devices developed in the past half a century since the invention of optical fiber. It has the advantages of high sensitivity, small size, light weight, and anti-electromagnetic interference. , have been widely used in the fields of fiber laser, fiber optic communication and fiber optic sensing. [0003] With the continuous development of optical fiber communication and laser technology, corresponding to different specific applications, the bandwidth requirements of FBG are also different. For a 40GHz DWDM (Dense Lightwave Multiplexing) communication system, the bandwidth required by FBG is 0.05nm-0.07nm; in ordinary optical sensing systems, the FBG bandwidth range is 0...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/02
CPCG02B6/02123
Inventor 庄炜祝连庆娄小平董明利何巍辛璟焘刘锋
Owner BEIJING INFORMATION SCI & TECH UNIV