Modulation type Mach-Zehnder interferometer based on thermo-optic effect

A thermo-optic effect and interferometer technology, applied in optics, instruments, nonlinear optics, etc., can solve problems such as complex operation and low success rate

Inactive Publication Date: 2021-05-04
GUILIN UNIV OF ELECTRONIC TECH
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN 108535892 A proposes to make a modulator by filling the air holes of photonic crystal fiber with graphene, and realize the modulation of the output light b

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
  • Modulation type Mach-Zehnder interferometer based on thermo-optic effect
  • Modulation type Mach-Zehnder interferometer based on thermo-optic effect
  • Modulation type Mach-Zehnder interferometer based on thermo-optic effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] Taking partial dual-core single-hole optical fiber as an example, the specific implementation of the modulating Mach-Zehnder interferometer based on the thermo-optic effect of the present invention will be described in conjunction with the accompanying drawings:

[0040] figure 1 A schematic diagram of the adjustable Mach-Zehnder interferometer based on the thermo-optic effect is given. Including light source 1, single-mode optical fiber 2, optical fiber cone 3, biased dual-core optical fiber 4, partial dual-core single-hole optical fiber 5, controllable electric heating device 6, spectrum analyzer 7, wire 8 and power control terminal 9. The light source is connected to the fiber-integrated Mach-Zehnder interferometer through a single-mode optical fiber as the incident end, and the other end of the interferometer is connected to the spectrum analyzer through a single-mode optical fiber as the output end, and the interferometer is placed in a controllable electric heatin...

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 provides a modulation type Mach-Zehnder interferometer based on a thermo-optic effect. A light source 1 serves as an incident end and is connected with an optical fiber taper 3-1 through a single-mode optical fiber 2-1; a section of biased double-core single-hole optical fiber 5 is welded between biased double-core optical fibers 4-1 and 4-2, and the two ends of each biased double-core optical fiber are connected with the optical fiber tapers 3-1 and an optical fiber taper 3-2 respectively, so that the Mach-Zehnder interferometer is formed; the other end of the optical fiber taper 3-2 is connected to a spectrograph 7; and an air hole of the biased double-core single-hole optical fiber is filled with liquid with a high thermo-optical coefficient, the biased double-core single-hole optical fiber is placed on a controllable electric heating device 6, and an electrode array on the controllable electric heating device is connected with a power supply control end 9 through a lead wire 8. The modulation type Mach-Zehnder interferometer applies a voltage to an electric heating sheet to cause the change of an effective refractive index of a fiber core close to the air hole in the optical fiber, so that the optical path difference is generated between the two fiber cores, and the modulation of output light is realized. The modulation type Mach-Zehnder interferometer has important application in the field of optical fiber sensing.

Description

[0001] (1) Technical field [0002] The invention relates to a modulating Mach-Zehnder interferometer based on the thermo-optic effect, in particular to the manufacture of a modulating interferometer based on a double-core single-hole optical fiber, and belongs to the technical field of optical fiber sensing. [0003] (2) Background technology [0004] In recent years, all-fiber modulators have attracted extensive attention from researchers at home and abroad, and have been applied to sensors and other fields due to their advantages such as wide tuning range, fast tuning speed, small insertion loss, and simple structure. [0005] Optical modulators are an important class of devices that are used to control the intensity of light during the transmission, transmission, and reception of the overall optical communication system. All-fiber modulators made of optical fibers generally have the advantages of simple structure, strong anti-electromagnetic interference, and good matching ...

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): G01D5/353G02F1/01
CPCG01D5/35329G02F1/0147
Inventor 苑立波王洪业
Owner GUILIN UNIV OF ELECTRONIC TECH
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