Polarizer of optical body

A polarizer and optical technology, applied in optics, lasers, nonlinear optics, etc., can solve the problems of poor integration and application limitations, and achieve the effects of small optical loss, easy optical structure, and high damage resistance threshold.
CN101587202BActive Publication Date: 2012-05-30SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD
Publication Date
2012-05-30

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Abstract

The invention relates to laser field, particularly relates to optical polarizer field. Optical principle of the invention is adoption of two wedge angle crystals with same index of refraction and madeof same optical materials, relative slope of the wedge angle crystals is plated with optical material coating with different index of refraction, a single block is composed between the wedge angle crystals by optical cement or deepened optical cement. The vertical light pass surface and optical cement film of the middle slope compose a brewster angel theta, thereby a flat type portion polarizer is composed for transparent transmission of P weight polarized light and partial reflection of S weight polarized light. The invention uses the technical scheme, has a optical structure of easy implementation, less optical loss, higher damage resistance threshold value, which is suitable for producing polarizer in laser vcavity and particularly in microchip laser, and can implement efficient integration with other optical crystals or optical device.
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Description

technical field

[0001] The invention relates to the field of lasers, in particular to the field of optical polarizers. Background technique

[0002] For the optical polarizer, the polarizer of the birefringent crystal is mainly used now, which divides the light incident on the crystal into two beams perpendicular to each other. One beam of linearly polarized light is totally reflected in the polarizing prism, while the other beam Linearly polarized light is almost completely transmitted, thereby achieving a high-clipping ratio polarization effect. For example, the commonly used Glan-Thomson prism is made of two calcite right-angle prisms glued together along the inclined plane by applying this principle, and the Oman-Marseille prism is made by gluing a crystal prism and a glass prism. In addition to the shortcomings of large device volume and complicated and difficult manufacturing process, the use of these polarizing devices also has a relatively large loss of transmitted ...

Claims

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