Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method and device for digitising electrical signal

A technology of electrical signals and optical signals, applied in electrical components, analog/digital conversion, analog-to-digital converters, etc., can solve problems such as difficult manufacturing and complex WDM systems, and achieve the effect of reliable and light weight devices

Inactive Publication Date: 2008-12-24
FILTRONIC PLC
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This WDM system is complex and not easy to manufacture

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 and device for digitising electrical signal
  • Method and device for digitising electrical signal
  • Method and device for digitising electrical signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] FIG. 1 shows a device for digitizing microwave signals according to the invention. The device 1 comprises a plurality of continuous wave (CW) lasers 2, each laser having a different wavelength than the other lasers. The output of each continuous wave laser 2 is received by a dispersive light chopper 3 . The dispersive light chopper 3 includes an arrayed waveguide grating (AWG) 4 , a pulse generator 5 and a dispersive light element 6 , each of which functions as described below. The AWG 4 comprises a plurality of input ports 7 each adapted to receive the output of a respective CW laser 2 . The AWG 4 combines signals received at multiple input ports 7 at a single output port 8 .

[0061] Connected to the output port 8 of the AWG 4 is a pulse generator 5 . The pulse generator 5 receives the continuous wave output of the AWG 4 at multiple wavelengths and converts them into a train of optical pulses at the same wavelength. The train of optical pulses can be several wavel...

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 device for digitising an electrical signal comprises: (A) at least two continuous wave lasers each being adapted to produce light at a different wavelength; (B) a dispersive optical chopper adapted to chop the output of each of the lasers into optical pulse trains, introduce a predetermined delay between each of the optical pulse trains and to combine the optical pulse trains into a single optical path; (C) a modulator having an input port adapted to receive the output of the dispersive optical chopper, an output port and at least one optical path extending therebetween, the modulator being adapted to receive a microwave signal and to modulate the amplitude of the optical signal in the optical path in response to the microwave signal; (D) an optical splitter for splitting the signal received from the output port of the modulator into a plurality of wavelength dependent signal paths; and (E) a plurality of analogue-to-digital converters each connected at least one wavelength dependent signal path for converting the received optical signal to a digital signal.

Description

technical field [0001] The invention relates to a method and a device for digitizing electrical signals, preferably microwave signals. More particularly but not exclusively, the present invention relates to a method of digitizing a microwave signal, said method comprising the steps of: providing a plurality of laser pulse trains having different wavelengths, introducing a time delay between the respective pulse trains, combining the respective pulse trains Via a modulator in which the individual pulse trains are modulated by an optical microwave signal, the modulated signal is divided into a plurality of wavelength-dependent paths and the received signal is digitized in each path. The invention also relates to a device for carrying out such a method. Background technique [0002] Devices for digitizing microwave signals are known. Such devices use either time division multiplexing (TDM) or wavelength division multiplexing (WDM). TDM systems provide a series of light pulse...

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): H04J14/08H03M1/12H04B10/2519
CPCH03M1/121H04B10/2519H04J14/02H04J14/08H04B14/02
Inventor 约翰·希顿
Owner FILTRONIC PLC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com