Polarization type optical caching device and regulating method thereof

A technology of an optical buffer and an adjustment method, applied in the field of optical communication, can solve the problems of not fast switching speed, avoid polarization state instability, etc., and achieve the effect of fast read and write response speed and easy cascading

Inactive Publication Date: 2008-01-30
BEIJING JIAOTONG UNIV
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a polarization type optical buffer and its adjustment method, which is designed f

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
  • Polarization type optical caching device and regulating method thereof
  • Polarization type optical caching device and regulating method thereof
  • Polarization type optical caching device and regulating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] In this embodiment, the buffer can adjust the delay time arbitrarily according to an integer multiple of the delay time of the optical fiber ring, and has the advantages of fast switching speed, large buffer depth, and convenience for cascading.

[0037] The structure of the polarization optical buffer is shown in Figure 7-13: it includes an input polarization controller 1, a polarization beam combiner 2, a nonlinear polarization rotation functional unit 3, a polarization beam splitter 4, and a section of polarization maintaining fiber 5 and a polarization state online monitoring unit 6. The nonlinear polarization rotation functional unit 3 is composed of a front polarizer 7 , a controllable nonlinear rotation functional device 8 and a rear polarizer 9 . The polarization state online monitoring unit 6 is composed of a ...

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

A polarization type optical buffer together with the adjusting method is designed for the low turning on and off speed and the instability of the avoiding polarization state, namely using the nonlinear rotation of the polarization state in a semiconductor optical amplifier or an optical fiber as a polarization control switch to realize the optical buffer to cache the data packet signal. The optical buffer consists of an input polarization controller, a polarization beam combiner, a nonlinear polarization rotation functional unit, a polarization beam splitter and a polarization maintaining fiber, wherein, the nonlinear polarization rotation functional unit consists of a front polarizer, a tail polarizer, the controllable non-linear rotation functional parts and an online monitoring unit of the polarization state composed by an optical fiber coupler and a polarization controller. The instability of the polarization can be avoided by adjusting the polarization type optical buffer to the polarized rotation. The polarization type optical buffer of the invention has the advantages that the reading and writing speed is high and the buffer depth of an optical fiber ring reaches above 90%, thereby being good for the cascade.

Description

technical field [0001] The present invention relates to the technical field of optical communication, in particular to a polarization optical buffer and its adjustment method, which utilizes the nonlinear rotation of the polarization state in a semiconductor optical amplifier or an optical fiber as a polarization control switch to implement data grouping signals. Cached optical buffer. Background technique [0002] With the development of high-speed all-optical networks, the shortcomings of wavelength switching are gradually emerging. All-optical networks are transitioning from optical wavelength switching networks with wavelength as the granularity of switching to optical packet switching networks with packet granularity. Optical packet switching will become an all-optical network. One of the important directions of the network. All-optical packet switching is essentially a store-and-forward technology, so how to complete the storage of optical data packets in the optical ...

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
IPC IPC(8): H04J14/02G02B6/26H04B10/12H04L12/56H04B10/25
Inventor 吴重庆程木赵爽
Owner BEIJING JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap