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

A One-Dimensional Magnetophotonic Crystal Realizing Optical Isolation

A photonic crystal and optical isolation technology, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of difficult preparation and large number of thin film layers, so as to improve integration, broaden spectral response, and reduce the total number of film layers. Effect

Active Publication Date: 2015-12-09
TAIYUAN UNIV OF TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these structures can be used to achieve optical isolation in a small range near the central wavelength, they are difficult to prepare in practical applications due to the large number of film layers.

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 One-Dimensional Magnetophotonic Crystal Realizing Optical Isolation
  • A One-Dimensional Magnetophotonic Crystal Realizing Optical Isolation
  • A One-Dimensional Magnetophotonic Crystal Realizing Optical Isolation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The technical scheme of a one-dimensional magneto-photonic crystal realizing optical isolation provided by the present invention will be further described below through specific implementation methods.

[0024] A one-dimensional magneto-photonic crystal realizing optical isolation provided by the present invention has a central working wavelength of 1550nm.

[0025] Such as figure 1 As shown, a one-dimensional magneto-photonic crystal that realizes optical isolation includes a one-dimensional magneto-photonic crystal, and its composition is that the structural formula of the above-described one-dimensional magneto-photonic crystal is:

[0026] [H / L] 3 / M / [L / H] 7 / M / [H / L] 7 / M / [L / H] 3 .

[0027] Among them: H is gallium arsenide GaAs with a thickness of 114.85nm and a refractive index of 3.374; L is silicon dioxide SiO with a thickness of 259.20nm and a refractive index of 1.495 2 ; M is the thickness of 158.68nm, ε in the dielectric tensor 1 =4.884;ε 2 =0.009 ce...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a one-dimensional magnetic photonic crystal for implementing optical isolation, of which the structural formula is [H / L]3 / M / [L / H]7 / M / [H / L]7 / M / [L / H]3, wherein H is a gallium arsenide film with the thickness of 114.85nm, L is a silicon dioxide film with the thickness of 259.2nm, and M is a cerium-doped yttrium iron garnet film with the thickness of 158.68nm. The crystal in such a structure can implement optical isolation within the small range near the central operating wavelength 1550nm, and only comprises 43 optical film layers, thereby lowering the actual preparation difficulty.

Description

technical field [0001] The invention relates to an optical isolator, in particular to a one-dimensional magneto-photonic crystal for realizing an integrated optical isolator. Background technique [0002] An optical isolator is a non-reciprocal passive device that only allows forward-transmitted light to pass through. Its main function is to prevent reverse-transmitted light from adversely affecting the light source and improve the stability of optical system transmission. [0003] The existing optical isolator is 45 from the direction of the optical axis o It consists of a pair of polarizers and a Faraday rotator placed between the two polarizers. The Faraday rotator includes a central magneto-optic crystal and a ring-shaped permanent magnet surrounding the magneto-optic crystal. [0004] The rapid development of modern optical communication technology requires the miniaturization of devices used in optical circuits for easy integration. However, due to the limitation of...

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): G02F1/09
Inventor 费宏明武建加杨毅彪陈智辉薛海斌李琳
Owner TAIYUAN UNIV OF TECH
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