Laser device outputting 1064nm tunable Laguerre-Gaussian beams

A laser and beam technology, applied in lasers, laser parts, laser parts, etc., can solve the problems of poor Laguerre Gaussian beam quality and complex cavity structure, and achieve excellent mode distribution, high purity, and high slope efficiency. Effect
CN107565352AActive Publication Date: 2018-01-09NANJING UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV
Publication Date
2018-01-09

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Abstract

The invention discloses a laser device outputting 1064nm tunable Laguerre-Gaussian beams. The laser device outputting the 1064nm tunable Laguerre-Gaussian beams comprises a 808nm laser diode, an optical fiber coupler, a film coated endoscope, a gain crystal, a heat dissipation device, a polarizing element, a scroll half wave plate and a pinhole, which are arranged along the direction of light propagation; and the film coated endoscope comprises a film coated front endoscope, a film coated focusing lens and a film coated back endoscope, which form a resonant cavity. By means of the laser deviceoutputting the 1064nm tunable Laguerre-Gaussian beams, the output of the 1064nm tunable Laguerre-Gaussian beams with low threshold, high skew efficiency, high purity and tunable angular Index l is realized.
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Description

technical field

[0001] The invention relates to a solid continuous laser, in particular to a laser outputting 1064nm tunable Laguerre-Gauss beams. Background technique

[0002] The Laguerre-Gaussian (LG) mode is the eigensolution of the paraxial approximate wave equation in the cylindrical coordinate system, and the LG beams of different modes are distinguished by the angular index l and the radial index p, namely model. Let p = 0, we can get pattern of beams. Such beams carry optical orbital angular momentum l, and have important applications in the fields of quantum optics, optical manipulation, material processing, and optical space multiplexing communication. Beams have obvious advantages in the application of various fields, such as the ability to prepare nanoscale chiral structures that are difficult to achieve with advanced chemical methods. thus obtaining high beam quality The light beam became the focus of the study.

[0003] Currently, the most straightfo...

Claims

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