High-power laser diode horizontal linear array pumped solid laser cavity

A laser diode and solid-state laser technology, which is applied in the field of solid-state laser cavity, can solve problems such as difficult sintering process, complex system configuration, and pump power limitation, and achieve the goal of eliminating electrode interconnection devices, improving pumping efficiency, and reducing package size Effect

CN101964496AActive Publication Date: 2011-02-02SUZHOU GUANGGE EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-02-02

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Abstract

The invention discloses a high-power laser diode horizontal linear array pumped solid laser cavity which comprises arc-shaped heat sinks, a water-cooling heat sink inner wall, a cooling water channel, a water-cooling heat sink outer wall and laser diode horizontal linear arrays, wherein the laser diode horizontal linear arrays (11) and the arc-shaped heat sinks (1) in same number are arranged at intervals for enclosing a circle; the inner surface of each arc-shaped heat sink is provided with a high-reflection cylindrical pumping cavity; the arc-shaped heat sinks are arranged in through holes of the water-cooling heat sink inner wall (7); and the cooling water channel (10) is formed between the periphery of the through holes and the water-cooling heat sink outer wall (8). The technical scheme provided by the invention has the characteristics of simple preparation process, high integrated level, easy modularized mass production and high efficiency.
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Description

technical field

[0001] The invention relates to a solid-state laser cavity, in particular to a high-power laser diode horizontal line-array pumped solid-state laser cavity. Background technique

[0002] In a traditional solid-state laser cavity pumped by a high-power laser diode, since the divergence angle of the high-power semiconductor laser is relatively large, generally 40×10 degrees, it is possible that part of the pump light is irradiated outside the crystal rod and There is no absorption by the crystal, or even if all the light is irradiated to the crystal, the absorption is not complete at one time, and part of the light passes through the crystal. This requires that light that passes through or is not absorbed by the crystal be reflected back to the crystal again. The usual practice is to add a collimating lens to make the divergence angle of the semiconductor laser very small. At the same time, a quartz tube is used, most of the surface is coated with 808nm high r...

Examples

Embodiment 1

[0016] Embodiment one: see figure 1 As shown, it is a schematic cross-sectional view of a high-power laser diode horizontal linear-array pumped solid-state laser cavity structure provided in this embodiment. exist figure 1 Among them, three laser diode horizontal line arrays 11 are respectively connected with three arc-shaped heat sinks 1 to form a circle, and the arc-shaped heat sinks form a cylindrical surface with a highly reflective inner surface, and the cylindrical surface is a pump cavity. The inner surface of the curved heat sink can be polished and then plated with gold to form a highly reflective surface or plated with a highly reflective dielectric film.

[0017] The arc-shaped heat sink 1 is placed in the through hole of the inner wall 7 of the water-cooled heat sink, and a cooling channel 10 is formed between the inner wall 7 of the water-cooled heat sink and the outer wall 8 of the water-cooled heat sink to dissipate heat, and the cooling water flowing into the ...