Underwater wireless optical communication device and method based on wavelength division multiplexing technology

A wireless optical communication and wavelength division multiplexing technology, which is applied in the direction of multiplexing communication, wavelength division multiplexing system, optical multiplexing system, etc., to achieve the effect of increasing capacity and increasing the scope of application

Pending Publication Date: 2017-10-27
ZHEJIANG UNIV
View PDF14 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the feasibility of using red light for wireless optical communication in turbid seawater was only confirmed not long ago, t

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
  • Underwater wireless optical communication device and method based on wavelength division multiplexing technology
  • Underwater wireless optical communication device and method based on wavelength division multiplexing technology
  • Underwater wireless optical communication device and method based on wavelength division multiplexing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

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

[0036] First of all, it should be explained that all electronic components (components) used in the transmitter device 1 and the receiver device 2 in the present invention are mature technologies, and all have corresponding commercially available products. On the basis of reading and understanding the application documents, those skilled in the art can completely reproduce the present invention according to their mastered radio knowledge and various digital signal processing skills.

[0037] Such as figure 1 The shown underwater wireless optical communication device based on wavelength division multiplexing technology includes a transmitter device 1 and a receiver device 2, which can use seawater channels to form an underwater wireless optical communication system. The underwater wireless optical communication device shall include 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

The invention relates to the field of underwater wireless optical communication and aims at providing an underwater wireless optical communication device and method based on a wavelength division multiplexing technology. The device comprises a transmitting end device and a receiving end device. The transmitting end device comprises a signal processor connected with three voltage amplifiers. Each voltage amplifier is connected with an adjustable attenuator, a bias drive module and a laser in sequence. The three lasers are red light, green light and blue light lasers and are connected with a three-in-one optical coupler. The three-in-one optical coupler is arranged opposite to a transmitting end lens. The receiving end device comprises a photoelectric detector arranged opposite to a receiving end lens. The photoelectric detector is connected with the voltage amplifiers, the adjustable attenuators and the signal processor in sequence. Red light, green light and blue light dichroic optical filters are placed on an optical path between the receiving end lens and the photoelectric detector. According to the device and the method, an applicable range of an underwater wireless optical communication system is greatly improved and the normal underwater wireless optical communication can be ensured all the time in different seawater environments.

Description

technical field [0001] The invention relates to the field of underwater wireless optical communication, in particular to an underwater wireless optical communication device and method based on wavelength division multiplexing technology. Background technique [0002] With the increasing demand for high-speed underwater communication, underwater wireless optical communication technology emerged as the times require. It has the advantages of high bandwidth, low power consumption, and low latency. In pure seawater, blue light is less affected by seawater absorption, showing good underwater wireless optical communication performance. In near-shore seawater, blue light is greatly affected by seawater absorption and scattering, while green light is the opposite, which is suitable for wireless optical communication in near-shore seawater. In turbid seawater, blue light and green light are greatly affected by seawater absorption and scattering, while red light is less affected by ...

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): H04B10/40H04B13/02H04J14/02
CPCH04B10/40H04B13/02H04J14/0278Y02D30/70
Inventor 徐敬孔美巍吴景盈吕伟超余楚盈
Owner ZHEJIANG 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