Writing device of optical fiber grating in visible light band
A technology of fiber grating and visible light, which is applied in the direction of optical waveguide light guide, clad optical fiber, optics, etc., can solve the technical difficulties of optical fiber grating in the visible light band, and achieve the effect of simple structure, good operation and good stability
Active Publication Date: 2020-04-03
XI'AN PETROLEUM UNIVERSITY
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the period of the phase mask is within a certain range, and there are certain technical difficulties in fabricating fiber gratings in the visible light band by the phase mask method.
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
[0019] The present invention will be described in further detail below with reference to the drawings and examples, but the present invention is not limited to the following embodiments.
[0020] exist figure 1 , 2 In this embodiment, a device for writing fiber gratings in the visible light band is composed of an ultraviolet light source 01, a first dichroic prism 02, a first focusing and collimating lens 03, a first phase mask 04, a first plane mirror 05, a first Two plane reflectors 06, a second dichroic prism 07, a second focusing and collimating lens 08, a second phase mask 09, a third plane reflecting mirror 10, a fourth plane reflecting mirror 11, a third focusing and collimating lens 12, A third phase mask 13, a photosensitive optical fiber 14, an optical fiber clamping and stretching device 15, and a phase mask fixing device are formed.
[0021] An ultraviolet light source 01, a first dichroic prism 02, a first plane mirror 05, a second dichroic prism 07, a second pl...
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
| Property | Measurement | Unit |
|---|---|---|
| wavelength | aaaaa | aaaaa |
Login to View More
Abstract
Provided is a device for writing a fiber grating in the visible light band. The ultraviolet light produced by an ultraviolet light source is divided into two beams through a first beam splitter prismon an optical platform. One beam of ultraviolet light is irradiated on a first phase mask through a first focusing and collimating lens to produce + / -1-stage diffraction, and the interference fringe formed by the diffracted light exposes a photosensitive fiber. The other beam of ultraviolet light is irradiated on a second beam splitter prism through a first set of plane mirrors and is divided by the second beam splitter prism into two beams, wherein one beam of ultraviolet light is irradiated on a second phase mask through a second focusing and collimating lens to expose another position of the photosensitive fiber, and the other beam of ultraviolet light is irradiated on a third phase mask through a third focusing and collimating lens to expose a third position of the photosensitive fiber. The device has the advantages of simple structure, good stability and convenience of operation, and can be widely promoted and used in the field of fiber grating writing technology.
Description
technical field [0001] The invention belongs to the technical field of optical fiber gratings, and in particular relates to a writing device for optical fiber gratings in the visible light band. Background technique [0002] Due to its small size, light weight, high stability, low power consumption, and easy connection with optical fiber transmission systems, fiber gratings are important devices in all-optical networks, and are therefore widely used in the fields of optical fiber communication and optical fiber sensing. With the continuous development and improvement of the preparation methods and technologies of optical fibers and optical devices, fiber gratings have become one of the fastest-growing and most representative optical passive devices in recent years. At the same time, with the deepening of research and the continuous expansion of application requirements, Fiber Bragg gratings with different uses and characteristics emerge in endlessly. [0003] In the current...
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
CPCG02B6/02123G02B6/02142
Inventor 傅海威张静乐丁继军李辉栋蒋友华张敏朱艺王旗旗杨冲
Owner XI'AN PETROLEUM UNIVERSITY