Two dimensional laser array phase locking and diameter aperture filling device

A laser array, two-dimensional fiber technology, used in the field of lidar and satellite laser communication

Inactive Publication Date: 2009-03-11
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
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Problems solved by technology

In prior art 2 (see Liren Liu, Lau cavity and phase locking of laser arrays, Opt. Lett., 14(23), 1312-1314, 1989.), a Lau effect resonant cavity with a phase compensation plate was designed to realize The phase-locking and coherent output of the semiconductor laser array are covered, but the phase-locking and aperture filling of the fiber laser array are not involved, and it is a one-dimensional laser array phase-locking

Method used

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  • Two dimensional laser array phase locking and diameter aperture filling device
  • Two dimensional laser array phase locking and diameter aperture filling device
  • Two dimensional laser array phase locking and diameter aperture filling device

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but the protection scope of the present invention should not be limited thereby.

[0045] see first figure 1 , figure 1 It is a structural schematic diagram of Embodiment 1 of the fiber laser array phase-locking and aperture filling device of the present invention. As can be seen from the figure, the two-dimensional fiber laser array phase-locking and aperture filling device of the present invention includes a total reflection mirror 1, a single-mode fiber array 2, a pump source 3, a phase compensation plate 4 and a partial reflection / output mirror 5, and its characteristics are:

[0046] The total reflection mirror 1, the single-mode fiber array 2, the phase compensation plate 4 and the partial reflection / output mirror 5 are arranged in sequence with the optical axis;

[0047] The single-mode fiber array 2 is formed by a plurality of single-mode fibers...

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Abstract

The invention relates to a locking phase and aperture filling device of a two-dimensional optical fiber laser array, which consists of a holophote, a two-dimensional single-mode optical fiber array, a pumping source, a phase compensating plate and a partially reflecting / outputting mirror, wherein the holophote, the partially reflecting / outputting mirror and the holophote, the partially reflecting / outputting mirror as well as the two-dimensional single-mode optical fiber array and the phase compensating plate which are positioned in the partially reflecting / outputting mirror satisfy the Talbot self-imaging condition to form a Lau effect resonant cavity. The invention has the advantages of simple structure, stable and reliable performance, continuous output with high power and the like, is particularly suitable for the fields of laser radar, satellite laser communication, directed energy weapon and other fields, and has actual significance for developing a compact and light laser system with high beam quality and high power.

Description

technical field [0001] The invention relates to laser radar and satellite laser communication, especially a two-dimensional fiber laser array phase-locking and aperture filling device, which is used in laser radar and satellite laser communication transmission systems to generate high power and high optical quality near the diffraction limit Continuous laser output. Background technique [0002] Fiber laser is a new type of solid-state laser device recently developed in the world. It has the advantages of large heat dissipation area, good beam quality and small size. It is used in high-precision laser processing, optical communication, laser radar, space technology, high-energy weapons and laser medicine. applied in other fields. With the development of laser application technology, high-power, high-quality and high-brightness laser beams are required in fields such as laser radar, and they are developing in the direction of miniaturization, full solid-state, and high power...

Claims

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Application Information

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IPC IPC(8): H01S3/23H01S3/067H01S3/0941
Inventor 闫爱民刘立人刘德安孙建锋
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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