Beam splitter and combiner with dual entrances in any ratio

A technology of beam splitting and arbitrary ratio, applied in the field of optics, can solve problems such as poor performance of high-precision optical instruments, achieve good stability and ensure coherence

Active Publication Date: 2018-04-10
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] There are many places in modern optical systems that require the use of beam splitters. There are many commonly used beam splitters, such as the coated PBS, which can split the light into two sides, but the polarization of the light and the angle of the beam splitter All have relatively high requirements, and the effect is not very good for high-precision optical instruments. Of course, there are various other beam splitters, which have various insurmountable points.

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  • Beam splitter and combiner with dual entrances in any ratio
  • Beam splitter and combiner with dual entrances in any ratio
  • Beam splitter and combiner with dual entrances in any ratio

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] An embodiment of the present invention provides a beam splitter and combiner with dual entrances at any ratio, such as figure 1 As shown, it mainly includes: beam polarization beam splitter PBS, three mirrors and two half-wave plates HWP of specified wavelengths; where: the three mirrors are denoted as mirror 1, mirror 2, and mirror 3; The block HWP is denoted as HWP1, HWP2;

[0021] according to figure 1 The structure in is used to build ...

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Abstract

The invention discloses a double-inlet beam splitter enabling any beam splitting ratios. With the double-inlet beam splitter adopted, it can be ensured that the optical paths of split H light and V light are exactly equal, and therefore, the coherence of incident light can be ensured; since the separate H light and V light pass through similar paths and the identical reflectors, excellent stability can be ensured; with half wave plates adopted, the polarization of the light can be controlled, and therefore, control on the beam splitting ratios can be realized; beam splitting and combination unrelated polarization can be realized, or beam splitting and combination related to a certain proportion of polarization can be realized.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a beam splitter and combiner with double entrances at any ratio. Background technique [0002] There are many places in modern optical systems that require the use of beam splitters. There are many commonly used beam splitters, such as the coated PBS, which can split the light into two sides, but the polarization of the light and the angle of the beam splitter All have relatively high requirements, and the effect is not very good for high-precision optical instruments. Of course, there are various other beam splitters, which have various insurmountable points. [0003] In view of this, it is necessary to study a high-precision, polarization-independent beam splitter to complete some high-precision optical tasks. Contents of the invention [0004] The purpose of the present invention is to provide a beam splitter and combiner with dual entrances at any ratio, which can adjust ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/10G02B27/28
CPCG02B27/1006G02B27/283G02B27/286
Inventor 胡晓敏柳必恒黄运锋李传锋郭光灿
Owner UNIV OF SCI & TECH OF CHINA
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