Stable-phase optical cable
An optical cable and phase stabilization technology, applied in the cable field, can solve the problems of unsatisfactory tensile strength, lateral pressure resistance and temperature resistance, affecting the phase stability of the output signal, affecting the optical fiber transmission performance, etc.
Inactive Publication Date: 2020-09-04
JIANGSU ZHONGTIAN TECH CO LTD
View PDF12 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] For conventional fiber optic cable products, the optical path difference will change with the temperature change. During the transmission process of a certain distance, due to the temperature change of the transmission path, the signal transmission distance will drift to a certain extent, which affects the phase stability of the output signal. The change process is mainly caused by the change of the refractive index of the fiber core, because the main material of the fiber is quartz, and the thermal expansion coefficient is 10 -7 order of magnitude, while the thermal expansion coefficient of the conventional optical fiber outer layer tight material is 10 -5 The inconsistency of this thermal expansion coefficient will lead to microbending of the optical fiber when the temperature difference changes greatly, causing the phase of the optical transmission signal to change when it reaches the receiving end at a specified time, affecting the transmission performance of the optical fiber. Tensile resistance, lateral pressure resistance and temperature resistance cannot meet the needs of extreme environments
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
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0022] It should be noted that when a component is said to be "mounted on" another component, it may be directly on the other component or there may be an intervening component. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary...
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 |
|---|---|---|
| diameter | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
A stable-phase optical cable comprises a plurality of cable cores, a reinforcing layer and an outer protective layer, which are arranged from inside to outside; each cable core comprises an optical fiber, a coating layer and a tightly-wrapping layer, the surface of the optical fiber is wrapped by the coating layer, and the coating layer is wrapped by the tightly-wrapping layer. According to the phase-stabilized optical cable, the coating layer is coated outside the optical fiber; a tight wrapping layer is arranged outside the coating layer; in a higher temperature range, the stable transmission performance is ensured, the time delay generated by optical fiber transmission signals when the ambient temperature of the optical fiber changes can be effectively reduced, and the double-sheath design is adopted structurally, so that the stable-phase optical cable has excellent tensile strength, lateral pressure resistance and repeated bending resistance, and is suitable for extreme applicationscenes.
Description
technical field [0001] The present application relates to the field of cables, in particular to a phase-stable optical cable. Background technique [0002] For conventional fiber optic cable products, the optical path difference will change with the temperature change. During the transmission process of a certain distance, due to the temperature change of the transmission path, the signal transmission distance will drift to a certain extent, which affects the phase stability of the output signal. The change process is mainly caused by the change of the refractive index of the fiber core, because the main material of the fiber is quartz, and the thermal expansion coefficient is 10 -7 order of magnitude, while the thermal expansion coefficient of the conventional optical fiber outer layer tight material is 10 -5 The inconsistency of this thermal expansion coefficient will lead to microbending of the optical fiber when the temperature difference changes greatly, causing the ph...
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 Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/4436
Inventor 赵静缪小明潘和平缪斌谭枫
Owner JIANGSU ZHONGTIAN TECH CO LTD