Coupling method for laminated semiconductor laser array and optical fiber array

A technology of laser array and fiber array, which is applied to semiconductor laser devices, coupling of optical waveguides, laser devices, etc., can solve problems such as impracticality, and achieve the effects of simple structure, good stability and small beam radius

Inactive Publication Date: 2004-08-25
樊承钧 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this type of structure, birefringent crystals usually require a long optical path to complete the synthesis of light-emitting units. For stacked tw

Method used

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  • Coupling method for laminated semiconductor laser array and optical fiber array
  • Coupling method for laminated semiconductor laser array and optical fiber array
  • Coupling method for laminated semiconductor laser array and optical fiber array

Examples

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Embodiment Construction

[0031] Figure 4 It is a schematic diagram of Embodiment 1 of the polarization beam combining technology of the present invention. Stacked semiconductor laser array 3 is arranged by two one-dimensional semiconductor laser arrays 6 and 7 (shown as the fast axis direction in the figure); The emitted light beam is collimated, and the collimated light beam passes through the total reflection mirror 13 to change the transmission direction of the light beam by 90°, and then reflects it by 90° by the polarization beam combining film 14, and the light beam from the one-dimensional semiconductor laser array 7 The collimated light beams are synthesized into light beams 15; the cylindrical lens 9 and the cylindrical lens array 11 are used to collimate the light beams emitted from the one-dimensional semiconductor laser array 7, and the collimated light beams are first passed through the half-wave plate 12 to rotate the polarization direction 90°, then pass through the polarization beam ...

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Abstract

The invention provides a superposing coupling method of semiconductor laser array and optical fiber array, where the semiconductor is a 2D array superposed of many one-dimensional semiconductor laser arrays, it uses column lens and column lens array to collimate the light beams emitted from many one-dimensional semiconductor laser arrays, then combines the collimated light beams into a beam, which is focused by lens array and coupled in multimode optical fiber array. These one-dimensional semiconductor laser arrays have the same number of lighting cells, the lighting cells of a one-dimensional semiconductor laser array basically aligns horizontally in the slow axis direction, the multimode optical fiber array and the one-dimensional semiconductor laser array have the same number of multimode receiving optical fibers, and the period P' of the multimode optical fiber array is the same as the period P of the one-dimensional semiconductor laser array.

Description

technical field [0001] The invention relates to a coupling method between a stacked semiconductor laser array and an optical fiber array, and belongs to the technical field of power coupling of semiconductor laser arrays. Specifically, the present invention describes an optical coupling system between a stacked multimode semiconductor laser array and a multimode fiber array. The semiconductor laser array with pigtails can be used as a pump source for solid-state lasers, a pump source for fiber lasers, or directly used in laser industrial processing, printing, welding, and medical equipment. Background technique [0002] In many application fields, it is usually required that the pigtail output has high energy density (high brightness). In order to meet this requirement, in recent years, semiconductor lasers have gradually evolved from a single light-emitting unit to a one-dimensional array composed of multiple light-emitting units, and then to a stacked two-dimensional arra...

Claims

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Application Information

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IPC IPC(8): G02B6/32G02B6/42H01S5/40
Inventor 樊承钧向清
Owner 樊承钧
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