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A Polarization-Independent Reflected Light Decoupling System

A technology of reflecting light and decoupling, which is applied in optics, optical components, instruments, etc., can solve the problems of high price and limited market supply capacity, and achieve the effect of reducing costs

Active Publication Date: 2019-01-04
SHENZHEN FURUI BEISI PHOTOELECTRIC SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these two materials are monopolized by two foreign companies, the price is extremely expensive, and the market supply capacity is also limited

Method used

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  • A Polarization-Independent Reflected Light Decoupling System
  • A Polarization-Independent Reflected Light Decoupling System
  • A Polarization-Independent Reflected Light Decoupling System

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Embodiment Construction

[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, according to the implementation of the design principle of the present invention, the incident light is normal incident on the incident surface, transmitted in the o light mode in the birefringent crystal lateral walk-off element, and the optical axis of the lateral walk-off element and 1 / 4 An embodiment in which the projection target angle of the optical axis of the wave plate on the incident surface is 45°, the present invention is not limited to this specific embodiment. The incident light can be obliquely incident on the incident surface, and can be in any polarization state. The optical axis of the lateral walk-off element and the optical axis of the 1 / 4 wave plate project on the incident surface at a target angle of 135°, and the design of the composite wave plate, etc. Conventional substitu...

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Abstract

The invention provides a novel polarization-independent reflected light decoupling system. According to the novel polarization-independent reflected light decoupling system, the reflected light is rotated 90 degrees relative to the polarization rotate of incident light based on the birefringence transverse walk-off phenomenon of crystals and the phase delay effect of 1 / 4 wave plates, and then, the reflected light is deviated from the incident light path based on the relative transverse walk-off phenomenon (displacement and / or angle) of o light and e light in a transverse walk-off component, so as to achieve a reflected light decoupling effect. The decoupling effect can be achieved for both incident o light and e light.

Description

technical field [0001] The invention relates to the technical field of optical design, in particular to a polarization-independent reflected light decoupling system in the field of optical communication. Background technique [0002] In the design of optical products, it is often encountered that reflected light interferes with the incident optical system, causing the performance of the entire optical system to degrade or fail to work. Therefore, in many optical product designs, measures need to be taken to reduce or overcome the coupling of reflected light into the incident optical system. To achieve stable performance and functionality. Commonly used methods to reduce the impact of reflected light are as follows: [0003] (1) Anti-reflection coating (AR) is coated on the reflective interface to reduce the total amount of reflected light. This method uses dielectric materials with high and low refractive index intervals to achieve the purpose of reducing reflection. This ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00G02B5/32
CPCG02B5/32G02B27/0012
Inventor 陈国强
Owner SHENZHEN FURUI BEISI PHOTOELECTRIC SCI & TECH CO LTD