Small constant-temperature air-cooling repetition-rate DPL (Diode Pump Laser) without TEC (ThermoElectric Cooler)

Abstract

The invention provides a small constant-temperature air-cooling repetition-rate DPL (Diode Pump Laser) without a TEC (ThermoElectric Cooler) and aims at providing the DPL laser, which has stable pulse repetition rate, large laser energy output and high reliability and is capable of reliably working under the high or low temperature environment of -40 DEG C to +65 DEG C and a certain impact vibration environment. The DPL laser is implemented through the technical scheme as follows: an output mirror and a holophote are arranged on one titanium alloy metal frame structure surface, and are located on one face of a 180-degree fold resonator and the other end of a titanium alloy frame body, and a tetrahedral prism with three mutually vertical surfaces is taken as a 180-degree light path folded mirror; a diode laser array pumping source is quickly heated in an area from the low temperature to the normal temperature, namely -40 DEG C to +39 DEG C, by a ceramic heating element under an air-cooling fin; when the diode laser array pumping source is heated to a normal working temperature range, a temperature sensor carries out motion control on the ceramic heating element to stop heating; when the temperature of the diode laser array pumping source is higher than +70 DEG C, the diode laser array pumping source is quickly cooled by a high-speed cooling fan under a heat sink of the diode laser array pumping source.

Description

technical field

[0001] The invention relates to a non-TEC constant temperature small air-cooled repetition frequency DPL laser working in a high and low temperature environment Background technique

[0002] With the technological progress of all-solid-state lasers towards ultra-high power development, the total power of core components has increased significantly, but the physical size has been required to be miniaturized, and the heat flux has also increased, requiring more effective thermal control; working materials The thermal effect of solid-state lasers also limits the development of solid-state lasers to higher power, and effective thermal control of working substances has always been the focus of attention. The all-solid-state laser DPL (Laser Diode-Pumped Solid-State Laser) has developed rapidly in recent years due to its advantages that traditional lamp-pumped solid-state lasers cannot match, such as high conversion efficiency, good beam quality, long working life,...

Examples

Embodiment Construction

[0021] refer to figure 1 . In the embodiment described below, the non-TEC constant temperature small air-cooled repetitive frequency DPL laser uses a diode laser array pump source 15 with a wide temperature range of +40°C to +70°C installed on the cover plate of the box, and a heat sink 13 , High-efficiency ceramic heating plate 12, small high-speed cooling fan 14 and temperature sensor 16. Also include, the laser working medium 8 installed in the frame body 17 and its heat conduction and heat dissipation crystal seat 7, ceramic heating sheet 12, heat sink 13, high-speed cooling fan 14, laser resonant cavity and its optical elements, all optical elements are placed In a rectangular parallelepiped titanium alloy frame structure 17. The laser working medium 8 can be a strip-shaped medium or a cylindrical medium. The characteristic of its pump part is that the pump structural components composed of wide temperature range high-efficiency diode laser array pump source 15, cerami...

technical field

[0001] The invention relates to a non-TEC constant temperature small air-cooled repetition frequency DPL laser working in a high and low temperature environment Background technique

[0002] With the technological progress of all-solid-state lasers towards ultra-high power development, the total power of core components has increased significantly, but the physical size has been required to be miniaturized, and the heat flux has also increased, requiring more effective thermal control; working materials The thermal effect of solid-state lasers also limits the development of solid-state lasers to higher power, and effective thermal control of working substances has always been the focus of attention. The all-solid-state laser DPL (Laser Diode-Pumped Solid-State Laser) has developed rapidly in recent years due to its advantages that traditional lamp-pumped solid-state lasers cannot match, such as high conversion efficiency, good beam quality, long working life,...

Examples

Embodiment Construction

[0021] refer to figure 1 . In the embodiment described below, the non-TEC constant temperature small air-cooled repetitive frequency DPL laser uses a diode laser array pump source 15 with a wide temperature range of +40°C to +70°C installed on the cover plate of the box, and a heat sink 13 , High-efficiency ceramic heating plate 12, small high-speed cooling fan 14 and temperature sensor 16. Also include, the laser working medium 8 installed in the frame body 17 and its heat conduction and heat dissipation crystal seat 7, ceramic heating sheet 12, heat sink 13, high-speed cooling fan 14, laser resonant cavity and its optical elements, all optical elements are placed In a rectangular parallelepiped titanium alloy frame structure 17. The laser working medium 8 can be a strip-shaped medium or a cylindrical medium. The characteristic of its pump part is that the pump structural components composed of wide temperature range high-efficiency diode laser array pump source 15, cerami...

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