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Multi-pass optical amplifier with multiple gain media, and method

A technology of gain medium and optical amplifier, which is applied in the direction of lasers, laser devices, laser components, etc., can solve problems such as difficult to achieve higher power, and achieve the effect of good beam performance

Pending Publication Date: 2019-07-19
NANJING DIAMOND LASERS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the methods used in these patents are relatively difficult to achieve higher power due to the limitation of the pump thermal effect of a single amplifying medium for higher output optical power requirements.

Method used

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  • Multi-pass optical amplifier with multiple gain media, and method
  • Multi-pass optical amplifier with multiple gain media, and method
  • Multi-pass optical amplifier with multiple gain media, and method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 , 2 A multi-pass optical amplifier with multiple gain media is shown, comprising at least two groups of curved mirror groups, the curved mirror groups are formed by two curved mirrors 1 and 2, 3 and 4 arranged oppositely, and the two curved mirrors Gain medium components 100 and 200 are provided at the confocal center, and the light-input diverting component 50 and the light-emitting diverting component 60 are respectively arranged close to the curved mirrors 4 and 1. The light-input diverting component 50 reflects the light beam 11 onto the curved mirror 1, The light beam 11 passes through all the curved mirrors 1, 2, 3, and 4 at least once, and then turns out from the light output turning member 60;

[0037] The focal lengths between the curved mirrors 1 and 2 can be the same or different, and the focal lengths between the curved mirrors 3 and 4 can be the same or different;

[0038] The curved mirror group composed of curved mirrors 1 and 2 has the...

Embodiment 2

[0046] Such as image 3 , 4 as shown in image 3 As shown, the arrangement of the beams, the beams reflected multiple times on the curved mirrors, can be arranged in two geometric planes, and the planes where the light rays reflected multiple times between the two geometric planes and the two sets of curved mirrors are perpendicular to each other , the schematic diagram of the light viewed from the side is shown in Figure 4 shown.

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Abstract

The invention provides a multi-pass optical amplifier with multiple gain media. The multi-pass optical amplifier comprises at least two curved mirror sets; each curved mirror set is formed by oppositely arranging two curved mirrors; gain medium components are arranged in the confocal centers of the two curved mirrors; light input steering parts and light output steering parts are arranged at the positions close to the curved mirrors; the light input steering parts reflect light beams to the curved mirrors; and the light beams are output from the light output steering parts after passing through all the curved mirrors at least once. The multi-pass optical amplifier has the beneficial effects that the multiple sets of the paired curved mirrors are added with the gain medium components; and amulti-pass repeated imaging process ensures that the light beams can keep relatively small included angles with the center lines of the amplification media during multi-time amplification around theamplification media and can be more effectively overlapped with a gain area of an end pump, so that the passing light beams are amplified and relatively good light beam performance is achieved.

Description

technical field [0001] The invention relates to the field of high-power optical amplification, in particular to a multi-pass optical amplifier with multiple gain media and its method. Background technique [0002] The main function of the optical amplifier is to amplify the energy of the beam. The main function is to generate the power or pulse energy that can reach the beam required by the application. It is a widely used laser amplifier. [0003] Laser amplifier technology is mainly divided into two types: regenerative amplifier and linear multipass amplifier. The regenerative amplifier uses a resonant cavity to amplify the laser pulse back and forth multiple times through the introduction of the laser beam pulse. When a certain peak pulse energy is reached, the amplified light pulse is quickly exported through the electronic control system to achieve amplification. The purpose of the laser pulse energy is to amplify the laser pulse through the regenerative amplifier to a...

Claims

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Application Information

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IPC IPC(8): H01S3/23
CPCH01S3/2325H01S3/0057
Inventor 周建平
Owner NANJING DIAMOND LASERS LTD