Semiconductor pumping gas laser system based on electromagnetic driving mode

Abstract

The invention belongs to the technical field of laser, and particularly relates to a semiconductor pumping gas laser system based on an electromagnetic driving mode. The system comprises a laser working medium generating device based on an electromagnetic driving mode, a plume region and a semiconductor pumping system. According to the invention, when the system works, the laser working medium generating device ionizes a working medium under the action of an electric field and a magnetic field to generate plasmas, the plasmas are ejected in an accelerated manner under the comprehensive action of an electromagnetic field to form a plume region, a working medium which can be used as a laser gain medium in the plume region realizes laser output under the pumping action of the semiconductor pumping system, and due to the fact that the working medium in the plume region moves at a high speed, waste heat generated in the laser pumping process is efficiently discharged; and the system has the advantages of all-electric operation, light weight, compactness, high specific power, efficient thermal control, single-aperture output and the like, and promotes the development of a new generation of laser light sources with high electro-optical efficiency, high beam quality and high average power.

Description

technical field

[0001] The invention belongs to the technical field of lasers, and in particular relates to a semiconductor pumped gas laser system based on an electromagnetic drive mode. Background technique

[0002] Since the advent of lasers in the 1960s, people have been devoting themselves to the development of laser systems with high average power, high conversion efficiency and high beam quality, which have important applications in fields such as industry and national defense. The essence of the laser system is to convert the pump energy (such as chemical energy, electrical energy, light energy, etc.) into a laser output with high coherence and low entropy. It leads to the deterioration and damage of laser system performance, and is more obvious in high-energy laser systems. The key to the development of high-energy laser systems lies in thermal management.

[0003] As the only light source that achieves megawatt-level output at present, the chemical laser is not on...

Examples

Embodiment 1

[0031] Embodiment 1: When the laser working medium generating device 1 based on the electromagnetic drive mode is a metastable inert gas atom generating device based on the Hall thruster working mode, the structure of the laser system is as follows image 3 shown. image 3 Among them, the laser working medium generating device 1 is a metastable inert gas atomic generating device based on the Hall thruster working mode, including a gas supply pipeline 11, and the gas flowing in the pipeline is a high-purity argon and helium mixed gas source, Among them, argon is the laser working medium, accounting for 5% by mole, and helium is the buffer gas, accounting for 95% by mole, which is used to promote 2p 9 →2p 10 No radiative transition and atomic absorption line broadening, in order to prevent the impurity gas for 1s 5 Collision quenching of metastable argon atoms, the impurity content of the gas source is controlled within 1ppm, the pneumatic control element 12 includes a mass fl...

Embodiment 2

[0033] Embodiment 2: When the laser working medium generating device 1 based on the electromagnetic drive mode is a nano-gas generating device based on the pulsed plasma propulsion mode, the structure of the laser system is as follows Figure 5 Shown:

[0034] Figure 5 Among them, the laser working medium generating device 1 is a pulsed plasma thruster, including an energy storage capacitor 11, which stores external electric energy and serves as a system discharge source; parallel plate electrodes 12 and 13 are used as an anode and a cathode, respectively; a ground terminal 14, Connected to the cathode 13, the rare earth element target 15, taking ytterbium as an example, has a purity ≥ 99.9%, and is used as a working fluid material for ionization; the spring 16 is used to maintain the front end of the target at a constant level after the target is bombarded by electrons and the mass is reduced. Position, for the system to continuously provide rare earth ion implantation, gas...

technical field

[0001] The invention belongs to the technical field of lasers, and in particular relates to a semiconductor pumped gas laser system based on an electromagnetic drive mode. Background technique

[0002] Since the advent of lasers in the 1960s, people have been devoting themselves to the development of laser systems with high average power, high conversion efficiency and high beam quality, which have important applications in fields such as industry and national defense. The essence of the laser system is to convert the pump energy (such as chemical energy, electrical energy, light energy, etc.) into a laser output with high coherence and low entropy. It leads to the deterioration and damage of laser system performance, and is more obvious in high-energy laser systems. The key to the development of high-energy laser systems lies in thermal management.

[0003] As the only light source that achieves megawatt-level output at present, the chemical laser is not on...

Examples

Embodiment 1

[0031] Embodiment 1: When the laser working medium generating device 1 based on the electromagnetic drive mode is a metastable inert gas atom generating device based on the Hall thruster working mode, the structure of the laser system is as follows image 3 shown. image 3 Among them, the laser working medium generating device 1 is a metastable inert gas atomic generating device based on the Hall thruster working mode, including a gas supply pipeline 11, and the gas flowing in the pipeline is a high-purity argon and helium mixed gas source, Among them, argon is the laser working medium, accounting for 5% by mole, and helium is the buffer gas, accounting for 95% by mole, which is used to promote 2p 9 →2p 10 No radiative transition and atomic absorption line broadening, in order to prevent the impurity gas for 1s 5 Collision quenching of metastable argon atoms, the impurity content of the gas source is controlled within 1ppm, the pneumatic control element 12 includes a mass fl...

Embodiment 2

[0033] Embodiment 2: When the laser working medium generating device 1 based on the electromagnetic drive mode is a nano-gas generating device based on the pulsed plasma propulsion mode, the structure of the laser system is as follows Figure 5 Shown:

[0034] Figure 5 Among them, the laser working medium generating device 1 is a pulsed plasma thruster, including an energy storage capacitor 11, which stores external electric energy and serves as a system discharge source; parallel plate electrodes 12 and 13 are used as an anode and a cathode, respectively; a ground terminal 14, Connected to the cathode 13, the rare earth element target 15, taking ytterbium as an example, has a purity ≥ 99.9%, and is used as a working fluid material for ionization; the spring 16 is used to maintain the front end of the target at a constant level after the target is bombarded by electrons and the mass is reduced. Position, for the system to continuously provide rare earth ion implantation, gas...

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