A pump-constrained dprgls system based on dielectric barrier discharge
A technology of dielectric barrier discharge and dielectric barrier, which is applied in the field of lasers to achieve the effects of increasing the emission rate, realizing light-to-light conversion efficiency, and high light-to-light conversion efficiency
Active Publication Date: 2022-04-12
NAT UNIV OF DEFENSE TECH
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is: aiming at the limitations of the existing technical solutions, a pump-constrained DPRGLs system based on dielectric barrier discharge is proposed, which combines the dielectric barrier discharge mode with the long-range pump confinement The advantages of stability and reliability realize the large-volume space discharge of inert gases at atmospheric pressure. On the other hand, based on the long-range pumping confinement structure, the high-intensity pumping and effective absorption of semiconductor pumping light can be realized. At the same time, the long gain size can effectively compensate for the current dielectric barrier. The problem of insufficient metastable atomic concentration caused by the discharge method ensures the required metastable atomic column density and supports high-power and high-efficiency laser output
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0020] like figure 1 As shown, it is a schematic diagram of the energy level structure and transition process of a semiconductor-pumped metastable noble gas laser. Noble gas atoms such as argon, krypton, and xenon have ground-state electronic structures with full shells ns 2 np 6 , which is excited to np by gas discharge 5 (n+1)s structure, which has four energy states (1s 2 to 1s 5 , where 1s 5 is the lowest metastable energy level), np 5 The (n+1)p structure has ten energy states (2p 1 ,2p 2 ,…2p 10 ), the transition process we are concerned with includes 1s 5 , 2p 9 and 2p 10 Three energy levels where the semiconductor pump absorption transition is 1s 5 →2p 9 , 2p 9 →2p 10 There is an electric dipole forbidden transition between them, and the rapid particle number transfer is realized by the collision relaxation of a buffer gas...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| wavelength | aaaaa | aaaaa |
Login to View More
Abstract
The invention belongs to the field of laser technology, and specifically relates to a pump-constrained DPRGLs system based on a dielectric barrier discharge. The invention combines a dielectric barrier discharge mode and a pump-constrained structure so that the DPRGLs system can simultaneously satisfy large-volume discharge and high-efficiency pumping. Pump: Dielectric barrier discharge mode is easy to achieve large-volume uniform discharge of inert gas at atmospheric pressure level, which is suitable for high-power lasers with large gain volume requirements; the pump confinement structure is conducive to maintaining high pumping intensity over a long pumping distance , on the one hand, long pumping distance is beneficial to achieve sufficient pump absorption, on the other hand, high pumping intensity is the physical basis for increasing the stimulated emission rate of atoms and effectively suppressing fluorescence loss, thereby achieving high light-to-light conversion efficiency; the present invention can be used in While inheriting the advantages of dielectric barrier discharge, by increasing the gain length, it meets the requirements of the laser system for the density of atomic columns, thereby supporting the effective operation of high-energy lasers.
Description
technical field [0001] The invention belongs to the technical field of lasers, and in particular relates to a Diode Pumped Metastable Rare Gas Lasers (DPRGLs) system based on a Dielectric Barrier Discharge (DBD) pump confinement type semiconductor pumped metastable noble gas laser (DPRGLs). Background technique [0002] Diode Pumped Metastable Rare Gas Lasers (DPRGLs) are metastable (usually 1s) 5 state) noble gas (usually argon, krypton and xenon) as the laser medium, high-power narrow-linewidth semiconductor laser is used as the pump source for optical pumping, and the laser output is realized through the classical three-level laser process, and the gas flow is used for efficient heat dissipation. DPRGLs is a new type of optically pumped gas laser system (Gain and lasing of optically pumped lasers) proposed and verified for the first time on the basis of the development of Diode Pumped Alkali Lasers (DPALs) by Heaven et al. of Emory University in 2012. metastable rare ga...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/0933H01S3/0943
CPCH01S3/0933H01S3/0943
Inventor 杨子宁王蕊王红岩韩凯杨未强许晓军
Owner NAT UNIV OF DEFENSE TECH