Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for synthesizing and preparing module of panda polarization maintaining optical fiber preformed rod

A polarization-maintaining optical fiber, panda-type technology, applied in polarized optical fiber, cladding optical fiber, glass manufacturing equipment, etc., can solve the problems of low production efficiency, poor process repeatability, large positioning deviation, etc., and achieve high processing accuracy, mature technology, high efficiency effect

Inactive Publication Date: 2010-09-15
上海傲世控制科技股份有限公司
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: (1) The positioning deviation is large, and it is difficult to accurately locate the two stress areas symmetrically with the fiber core
In particular, the smaller the diameter of the hole and the deeper the hole, the more difficult it is to control the deviation at both ends of the panda female rod
(2) It is difficult to grind and polish the inner hole, and it is difficult to accurately control the hole diameter and roundness
Although after years of exploration, there is some successful experience, but the repeatability of the process is poor
(4) Low production efficiency

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for synthesizing and preparing module of panda polarization maintaining optical fiber preformed rod
  • Method for synthesizing and preparing module of panda polarization maintaining optical fiber preformed rod
  • Method for synthesizing and preparing module of panda polarization maintaining optical fiber preformed rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The features of the present invention and other related features will be further described in detail below in conjunction with the accompanying drawings through embodiments, so as to facilitate the understanding of those skilled in the art:

[0021] Figure 1-5 The marks 1-12 indicate circular casing module 1, arc-shaped quartz filling module 2, stress module 3, single-mode module 4, mandrel 5, rod core layer 6, mandrel inner cladding 7, mandrel outsourcing Layer 8, circular casing 9, filling rod 10, stress rod 11, stress rod outer cladding 12.

[0022] This embodiment is based on today's mature high-precision cutting, grinding, polishing technology and equipment, with high-grade quartz pipes and rods selected according to design as auxiliary parts, and core rods and stress rods prepared by MCVD technology. The main part is designed, processed and combined to make a Panda polarization maintaining optical fiber preform.

[0023] In this embodiment, the outer diameter o...

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

No PUM Login to View More

Abstract

The invention relates to the field of optical fiber communication, in particular to the method for synthesizing and preparing a module of a panda polarization maintaining optical fiber preformed rod. According to the division of the cross section of the panda polarization maintaining optical fiber preformed rod, the preformed rod is divided into four modules, namely, a circular casing module, a single-mode module which contains a core rod, two stress modules which contain a stress rod respectively, and two curved quartz-filled modules; the core rod, the stress rod, filling rods and the like are cut into required component modules by machining ways, such as linear cutting; after being ground and polished, each module is placed in a quartz casing to be combined; one end of the combined polarization maintaining optical fiber preformed rod is coned; nitrogen is introduced into the casing; and the polarization maintaining optical fiber preformed rod is drawn into a panda polarization maintaining optical fiber. The method of the invention has the advantages of precisely machining both large-size preformed rods and small-size preformed rods and guaranteeing precise positioning of structure size, along with low cost, high machining accuracy and speed, massive production, high efficiency, and relatively mature, simple, quick and convenient process.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to a novel modular synthesis preparation method of a panda-shaped polarization-maintaining optical fiber preform. Background technique [0002] Panda-type polarization-maintaining fiber is currently mainly used in the preparation of high-tech fiber optic sensors such as fiber optic gyroscopes and fiber optic hydrophones. It occupies more than 60% application share in many polarization maintaining fibers. [0003] The main production method of Panda polarization maintaining fiber is ultrasonic drilling and embedding stress rod method. This method has the following disadvantages: (1) The positioning deviation is large, and it is difficult to accurately locate the two stress regions symmetrically with the fiber core. In particular, the smaller the diameter of the hole and the deeper the hole, the more difficult it is to control the deviation at the two ends of the panda fem...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/024C03B37/02
Inventor 吴海林虞翔王浩
Owner 上海傲世控制科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com