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Polarized light conversion element and optical isolator

A technology of polarization conversion and polarized light, which can be used in polarizing elements, optics, optical elements, etc., and can solve problems such as increasing size

Active Publication Date: 2019-06-04
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Faraday optical isolators are difficult to make large because they require a very large external magnetic field to drive and expensive materials must be applied to them

Method used

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  • Polarized light conversion element and optical isolator
  • Polarized light conversion element and optical isolator
  • Polarized light conversion element and optical isolator

Examples

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Embodiment 1

[0069] in manufacturing with such figure 2 After the components of the structures shown, a Genesis MX SLM laser from Coherent (power 10 mW) was passed into the corresponding component to test the component. Holographic optical elements for the manufacture of components ( figure 2100, 200 and 300 in ) are transmissive elements, where elements manufactured in a known manner are used. That is, for a photopolymer with a thickness of about 5 μm to 30 μm, a holographic optical element was fabricated in an interferometer using a Genesis MX SLM laser from Coherent with a wavelength of 532 nm as a light source at a laser power of about 200 mW. The photopolymer had a refractive index of about 1.5 before exposure, and the difference in refractive index of the interference pattern after exposure was about 0.03.

[0070] The first optical element ( figure 2 100 in) and the third optical element ( figure 2 300 in ) is such a transmission holographic optical element: when light is in...

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Abstract

The present application relates to a polarized light conversion element and an optical isolator. The present application provides a polarized light conversion element capable of converting non-polarized incident light into one type of polarized light, and an optical isolator comprising the polarized light conversion element, and having superb degree of optical isolation. Such an optical isolator can be applied in a variety of uses, for example, in the fields of optical communications or laser optics, security, and privacy protection, and in masking or improving brightness of display.

Description

technical field [0001] This application claims the benefit of priority based on Korean Patent Application No. 10-2016-0132842 filed on October 13, 2016, the disclosure of which is incorporated herein by reference in its entirety. [0002] The present application relates to polarization converting elements and optical isolating devices. Background technique [0003] An optical isolator is a device in which the forward transmittance is higher than the reverse transmittance, which is also known as an optical diode. Optical isolators can be used to prevent unwanted reflected light in the fields of optical communication or laser optics, or they can also be applied to building or automotive glass for security or privacy protection, etc. Optical isolation devices can also be used in applications such as brightness enhancement in various displays or military products for concealment and concealment. [0004] As an optical isolator, there is a Faraday optical isolator using the Far...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/28G02F1/1335G02B5/30
CPCG02B5/30G02B27/28G02F1/1335G02B6/2746G02B6/2706G02B5/3025G02B27/286G02B5/32G02B5/3083G02B5/3016G02B27/281G02F1/133528G02B5/3033G02F1/133543
Inventor 朴圣珉韩尚澈宋民守
Owner LG CHEM LTD
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