Polarizer of optical body

A polarizer and optical technology, applied in optics, lasers, nonlinear optics, etc., can solve problems such as application limitations and poor integration, and achieve high anti-damage threshold, low optical loss, and easy-to-implement effects

Active Publication Date: 2009-11-25
SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of partial polarization is achieved, but the application of this kind of device is greatly limited due to its surface processed into Brewster's angle, especially in the application of laser cavity, it can only be used in various separate cavities, integrated Poor

Method used

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  • Polarizer of optical body
  • Polarizer of optical body
  • Polarizer of optical body

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Embodiment Construction

[0022] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0023] The optical principle of the present invention is to use two identical optical materials with the same refractive index to make a pair of wedge angle crystals, and to plate optical material films with different refractive indices on the opposite slopes of the wedge angle crystals, and to pass optical glue or deepening between the wedge angle crystal pairs. The photoresist forms a single monolithic block. Its vertical light-transmitting surface and the photoresist film on the middle slope form a Brewster angle θ, thus forming a planar partial polarizer that completely transmits the P component polarized light and partially reflects the S component polarized light. Component polarized light is basically lossless, and the theoretical transmittance can reach 100%.

[0024] refer to figure 1 As shown, 101 is the incident light, including the p-co...

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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 made of 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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02F1/35H01S3/106H01S3/108
Inventor 吴砺凌吉武贺坤余洪瑞陈卫民
Owner SHANGHAI BRANCH FUZHOU GAOYI COMM CO LTD
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