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Novel polarization correlation reflected light decoupling system

A polarization-related and reflected light technology, 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

Inactive Publication Date: 2015-11-11
SHENZHEN FURUI BEISI PHOTOELECTRIC SCI & TECH CO LTD
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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

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  • Novel polarization correlation reflected light decoupling system
  • Novel polarization correlation reflected light decoupling system
  • Novel polarization correlation reflected light decoupling system

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Embodiment Construction

[0019] 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 the embodiment according to the design principle of the present invention is only used as a flat-plate polarizing element, and the polarization selection direction of the polarizing element and the optical axis of the 1 / 4 wave plate have a projection target angle of 45° on the incident surface, and the incident An example of the normal incidence of light on the incident surface, but the invention is not limited to this specific embodiment, other forms and shapes (such as wedges, prisms, lenses, etc.) The design that the projection target angle of the axis on the incident surface is 135°, the design of the composite wave plate, and the design that the incident light obliquely enters the incident surface also belong to the scope of this invention.

[0020] It should be understood that the specific emb...

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Abstract

The invention discloses a novel polarization correlation reflected light decoupling system, comprising steps of allowing linearly polarized light to pass through without loss, wherein the polarization direction of the linearly polarized light is parallel the polarization direction, blocking a polarization member, through which the linearly polarized light passes which is perpendicular to the polarization direction, and a phase delay member which is used for extending 1 / 4 wave length for the phase and changing the polarization direction of the reflected light. The novel polarization correlation reflected light decoupling system utilizes the linear polarization and polarization analyzing of the polarized sheet and the 1 / 4 wave-plate phase delayed effect, applies the 1 / 4 wave-plate phase delayed effect, enables the reflection light to rotate for 90 degrees relative to the polarization state of the incident light, utilizes the linear polarization and polarization analysis phenomenon of the polarization sheet to block the reflection light from going into the incident light path. As a result, the reflected light decoupling effect is realized.

Description

technical field [0001] The invention relates to the technical field of optical design, in particular to a novel polarization-dependent 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. T...

Claims

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Application Information

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IPC IPC(8): G02B27/28
CPCG02B27/286
Inventor 陈国强
Owner SHENZHEN FURUI BEISI PHOTOELECTRIC SCI & TECH CO LTD
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