Optical mode cleaner

A cleaner and optical mode technology, applied in lasers, laser parts, laser parts, etc., can solve the problems of cavity temperature control and stability need to be further improved, and achieve the effect of reducing deformation

Inactive Publication Date: 2010-10-06
SHANXI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This mold cleaner adopts an integral cavity structure, but the overall temperature control of the cavity is not carried out, and the stability needs to be further improved

Method used

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Embodiment Construction

[0020] An embodiment of the present invention, such as figure 1 As shown, the three-mirror annular optical resonant cavity includes a cylindrical cavity 1, a triangular cone-shaped cone 5 and a circular bottom plate 10. The cylindrical cavity 1 is an Invar cylinder with an inner diameter of 25 mm and an outer diameter of 40 mm. One end of the body 1 is closely connected with the cone 5, and the other end is fixed with the circular bottom plate 10 by screws, and indium foil is added on the contact surface to adjust the closure of light in the optical cavity, forming a sealed overall cavity. Plane mirrors 6 and 7 are respectively fixed on two slopes of cone 5, and concave mirror 8 and piezoelectric ceramics 9 are fixed at the central position of circular base plate 10; the reflectivity of plane mirrors 6 and 7 is 99.7%, and the reflection The ratio is 99.95%. Plane mirrors 6 and 7 choose plane mirrors with a diameter of 25mm, and concave mirror 8 chooses a concave mirror with a ...

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PUM

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Abstract

The invention provides an optical mode cleaner, which comprises a three-mirror ring optical resonance cavity. The three-mirror ring optical resonance cavity comprises a cylindrical cavity (1), a pyrometric cone (5) and a circular bottom plate (10). One end of the cylindrical cavity (1) is connected with the pyrometric cone (5) and the other end of the cylindrical cavity (1) is connected with the circular bottom plate (10) to form a sealed integral cavity. A plane mirror (6) and a plane mirror (7) are respectively fixed on two inclined surfaces of the pyrometric cone (5). A concave mirror (8) and piezoelectric ceramics (9) are fixed in the center of the circular bottom plate (10). The resonance cavity is made of invar steel, a temperature control device is used for integrally controlling the temperature of the cavity, the entire cavity is sealed and the cavity is fixed on a V-shaped base in a way of line contact. The optical mode cleaner has high stability and narrow line width and can be used in aspects such as filtering extra noise of laser, improving light spot quality, improving the compression degree or entanglement degree of nonclassical optical fields, and the like.

Description

technical field [0001] The invention relates to optical components, in particular to an optical mold cleaner. Background technique [0002] The optical mode cleaner is an important component in quantum optics experiments. It plays an important role in filtering laser noise, improving the quality of the laser beam, changing the spatial mode distribution of the laser beam, and improving the compression (or entanglement) of the non-classical optical field. and broad application prospects. [0003] Related research work before this includes: [0004] 1. A.G.White et al. published a paper entitled "Experimental Tests of Modular Noise Transmission Theory in Quantum Optics" on Phys.Rev.A in 1996, which used a narrow linewidth mode cleaner to reduce the driving of the laser Noise, increased compression from 0.75dB to 3dB. [0005] 2.B.Willke et al. published a paper entitled "Using a Fabry-Perot Annular Front Mode Cleaner to Filter the Spatial and Temporal Patterns of a 10W Nd:YA...

Claims

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Application Information

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IPC IPC(8): H01S3/083H01S3/04
Inventor 石柱苏晓龙商娅娜王宇彭堃墀
Owner SHANXI UNIV
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