Topping signal demodulation device and optical module

A signal demodulation and top-tuning technology, which is applied in multiplexing communication, optical multiplexing system, electromagnetic wave transmission system, etc., can solve the problems of interference, insufficient dynamic range of signal detection, etc., and achieve the goal of expanding the dynamic range Effect

Pending Publication Date: 2020-11-20
瑞泰(威海)电子科技有限公司
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems existing in the prior art that the signal easily reaches the upper limit (saturation) of the circuit level under strong light, and the signal amplitude is too small to be easily interfered under weak ligh

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
  • Topping signal demodulation device and optical module
  • Topping signal demodulation device and optical module
  • Topping signal demodulation device and optical module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0030] refer to figure 2 As shown, the embodiment of the present invention provides a modulation signal demodulation device, including: a sampling circuit and an amplifying circuit;

[0031] The sampling circuit is used for performing AC coupling on the input RSSI voltage signal, removing the DC component in the RSSI voltage signal, and outputting the AC signal;

[0032] The amplifying circuit is used to amplify the input AC signal and output it to the compar...

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 a topping signal demodulation device and an optical module. The topping signal demodulation device comprises a sampling circuit and an amplifying circuit, wherein the samplingcircuit is used for carrying out alternating current coupling on an input RSSI voltage signal to remove a direct current component in the RSSI voltage signal and outputting an alternating current signal; and the amplifying circuit is used for amplifying the input alternating-current signal and outputting the amplified alternating-current signal to the comparator for judgment to recover a modulation signal. The beneficial effects of the device are as follows: an RSSI voltage signal output by a sampling resistor is subjected to alternating-current coupling by adopting the sampling circuit, so that a direct current component on the RSSI signal is removed; the problem that signals are easy to saturate in strong light in a conventional scheme is solved; the amplifying circuit is additionally arranged at the rear end to amplify the input alternating current signals by multiple times (or tens of times), the problem that the signal amplitude is small under weak light (and the signals are notdistorted under strong light) is solved, the dynamic range of the detection circuit can be improved by 10 dB or above, and the dynamic range of signal detection is fully expanded.

Description

technical field [0001] The invention belongs to the technical field of optical communication modules, and in particular relates to a demodulation device and an optical module for a top tuning signal. Background technique [0002] With the rapid development of 5G wireless communication technology, more and more wavelength division multiplexing optical modules are applied to 5G equipment. For example, a 12-wavelength tunable optical module based on dense wavelength division multiplexing (DWDM), or a 20-wavelength tunable optical module; a 12-wavelength optical module based on medium wavelength division multiplexing (MWDM) and a thin wavelength division multiplexing (Lan-WDM) ) 12-wavelength optical module. In order to facilitate the management of multiple-channel WDM optical modules, the "network management" function of the WDM optical module has gradually become "standard configuration": that is, the communication channel established by the multiplexed optical module does no...

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): H04B10/079H04J14/02
CPCH04B10/0795H04J14/0227
Inventor 王魁李绍波赵小鹏王继罗
Owner 瑞泰(威海)电子科技有限公司
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