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Polarized light beam splitting double reflection method and polarized light beam splitting prism

A beam-splitting prism and double-reflection technology, applied in prisms, optics, optical components, etc., can solve the problems of low technical indicators, single function, insufficient, etc., and achieve the effect of broadening the scope of application, multiple functions, and advanced indicators.

Inactive Publication Date: 2007-10-03
LASER INST QUFU NORMAL UNIV
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  • Summary
  • Abstract
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Problems solved by technology

The former has simple structure and small volume, but the main technical indicators such as extinction ratio and transmittance are low (generally 10 -3 and 80%), the application is subject to certain restrictions; although the latter has more advanced indicators, it has a single function and is insufficient

Method used

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  • Polarized light beam splitting double reflection method and polarized light beam splitting prism
  • Polarized light beam splitting double reflection method and polarized light beam splitting prism
  • Polarized light beam splitting double reflection method and polarized light beam splitting prism

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Embodiment Construction

[0016] Embodiment of the present invention is referring to accompanying drawing 1. A unitary double-reflection polarizing beam splitter prism is composed of a single uniaxial crystal prism, which is characterized in that its optical axis is perpendicular to the incident end face, and the included angle between the incident end face and the reflective face is 45°. The prism material is Iceland stone crystal, and the anti-reflection coating is coated on both ends.

[0017] Embodiments of the present invention refer to accompanying drawing 2. A compound double-reflection polarizing beamsplitter prism is composed of two uniaxial crystal prisms, which are characterized in that the optical axis is perpendicular to the incident end face, the angle between the incident end face and the outgoing face is 90°, and the bonding of the two uniaxial crystals The surface is opposite to the reflective surface, and the angle between the cemented surface of the two uniaxial crystals and the inc...

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Abstract

The present invention discloses polarized light beam splitting double reflection method and polarized light beam splitting prism, and belongs to the field of optical device technology. The present invention features that light beam is radiated to crystal interface and bireflected to split into two planar light beams with perpendicular vibration directions before being emitted from the outgoing plane. The polarized light beam splitting prism consists of one prism of one single uniaxial crystal and one prism of two uniaxial crystals, and has optical axis perpendicular to the incident plane and angle between the incident plane and the reflecting plane of 45 and 90 deg. It has the functions of several devices and important application in laser technology, optical test, optical modulation, etc.

Description

technical field [0001] The invention discloses a double-reflection polarized beam splitting method and a polarized beam splitting prism, belonging to the technical field of optical devices. Background technique [0002] Polarizing devices are important devices in the field of laser technology and polarization application technology, and polarizing beam splitting prisms are an important category of polarizing devices. Its research and development are of great significance to the development of modern optical technologies such as optical communication, optical information processing, optical testing, laser technology and optical computing. Before the present invention was made, the functions of conventional polarizers were single, and multiple functions such as polarization, beam splitting, and beam steering could not be integrated into one body, which brought a lot of inconvenience to experiments and applications. The development of laser and light modulation application tec...

Claims

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Application Information

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IPC IPC(8): G02B27/10G02B5/30G02B5/04
Inventor 李国华赵明山吴福全
Owner LASER INST QUFU NORMAL UNIV
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