Inclined slab laser amplifier

A technology of laser amplifiers and amplifiers, which is applied in the direction of lasers, laser devices, laser components, etc., can solve the problems of consumption of inversion particles, achieve the effects of suppressing self-excited oscillation, reducing the decline in slab utilization, and compensating for beam gain

Inactive Publication Date: 2009-11-04
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

However, since the total reflection surfaces are parallel to each other, it is still easy to form parasitic oscillations on the zigzag surface, consuming a large amount of inversion particles

Method used

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Embodiment Construction

[0026] 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 once.

[0027] see first figure 2 , figure 2 It is a schematic diagram of the embodiment structure of the inclined slab laser amplifier of the present invention. As can be seen from the figure, the inclined slab laser amplifier of the present invention is composed of a first-stage amplifier, a second-stage amplifier, a Dove prism 5, a first reflector 6, and a second reflector 7:

[0028] The first-stage amplifier is composed of the first laser crystal slab 1, the first semiconductor laser pump source 2, the first heat sink 3 and the first gold-tin transition layer 4, and the second-stage amplifier is composed of the first Two laser crystal slabs 11, a second semiconductor laser pumping source 12, a second heat sink 13 and a second gold-tin transition layer 14 are formed. The laser...

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Abstract

The invention relates to an inclined slab laser amplifier, which consists of a first stage amplifier, a second stage amplifier, a Dove prism, a first reflecting mirror and a second reflecting mirror; laser crystal slab strips of the first stage amplifier and the second stage amplifier are inclined laser crystal slab strips; each laser crystal slab strip comprises two end faces and four sides which are respectively called an end face A, an end face B, a pumping surface C, a pumping surface D, and two opposite cooling surfaces which are mutually parallel; and a minute angle is formed between the pumping surface C and the pumping surface D. The inclined slab laser amplifier effectively inhibits parasitic oscillation and improves laser efficiency; and the Dove prism effectively eliminates the optical beam gain and asymmetry of a thermal lens caused by thermal effect.

Description

technical field [0001] The invention relates to a slab laser amplifier, in particular to an inclined slab laser amplifier, which is widely used in laser processing, communication, space technology and military fields. Background technique [0002] The zigzag slab laser amplifier is an important research direction for high-power solid-state lasers. The zigzag slab laser amplifier has the following advantages: 1. The slab structure eliminates stress-induced birefringence; 2. The zigzag beam propagation path eliminates 3. The slab-shaped laser medium can be well matched with the semiconductor laser LD module without additional beam shaping; 4. The slab-shaped laser medium generally adopts a large surface Cooling is beneficial to improve the thermal effect in the laser medium, etc. [0003] Hovis and his group have done a lot of research in the field of space applications of slab amplifiers. An amplifier structure proposed by Hovis is the zigzag slab amplifier pumped by the bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/23H01S3/0941H01S3/06H01S3/042H01S3/02H01S3/10H01S3/13
Inventor 朱小磊尹亮
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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