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

A Novel Vortex Damman Grating Model and Dynamically Reconfigurable Routing System

A Damman grating and vortex technology, applied in the field of free space optical communication, can solve the problem of dynamic routing of the orbital angular momentum channel, etc., and achieve the effects of easy detection, high energy utilization rate, and energy average

Active Publication Date: 2018-09-25
深圳市深光谷科技有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a new vortex Damman grating model and a dynamic reconfigurable routing system, aiming to solve the problem that the existing technology cannot solve the dynamic routing between orbital angular momentum channels

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
  • A Novel Vortex Damman Grating Model and Dynamically Reconfigurable Routing System
  • A Novel Vortex Damman Grating Model and Dynamically Reconfigurable Routing System
  • A Novel Vortex Damman Grating Model and Dynamically Reconfigurable Routing System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] The traditional Dammann grating was proposed very early, and its characteristic is that it can divide the light beam into N diffraction orders on average, and the energy of these N orders is equal. Taking advantage of this characteristic, a vortex Dammann (Dammann OV) grating is proposed, which can be expressed as:

[0025]

[0026] In the above formula (1), N and M are the total diffraction orders in the x and y directions respectively, and the grating produces an M×N array after diffraction, l x and l y are the topological kernel intervals in the x and y directions, respectively, and ...

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 is suitable for the field of free space optical communication, and provides a novel vortex Dammann grating model and a dynamic reconstructible routing system. The novel vortex Dammann grating model is loaded on a spatial light modulator to divide incident beams into a plurality of diffractive orders, the topological kernel value, corresponding to any one of the diffractive orders, of an orbit angular momentum light beam can be self-defined, so that the spatial light modulator modulates spatial light based on the topological kernel information defined by the loaded novel vortex Dammann grating model. The novel vortex Dammann grating model can realize the parallel detection of a plurality of OAM channels, greatly simplifies the system and increases the number of available OAM channels, and while serving as a demodulator, the energy utilization rate is high and the energy of the channels is equal, and the detection is convenient; and meanwhile, the dynamic routing among orbit angular momentum channels can be realized by the switching of different gratings with the spatial light modulator.

Description

technical field [0001] The invention belongs to the field of free space optical communication, in particular to a novel vortex Damman grating model and a dynamic reconfigurable routing system. Background technique [0002] Whether it is a mobile communication system or an Internet communication system, as well as many other communication systems, the improvement of system performance must be achieved by increasing the system capacity (Capacity) and reducing the bit error rate (Bit Error Rate, BER). In order to continuously improve system capacity, people have developed different multiplexing methods on different transmission media (cable, optical fiber, free space, etc.), including Time Division Multiplexing (Time Division Multiplexing, TDM), Code Division Multiplexing (Code Division Multiplexing CDM), frequency division multiplexing (Frequency Division Multiplexing FDM) and space division multiplexing (Space Division Multiplexing SDM), etc. In order to continuously reduce ...

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 Patents(China)
IPC IPC(8): H04Q11/00H04B10/11H04B10/516
Inventor 袁小聪雷霆张萌高社成袁扬胜李朝晖
Owner 深圳市深光谷科技有限公司
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