Patent ID: 11916349
Assignee: SHANXI UNIVERSITY
Field: Optics (Instruments)
Classification: CPC H  G | IPC G  H

Claim 11:
12. The method for measuring a thermal load caused by ETU in a laser gain crystal according to claim 8, wherein the obtaining a second thermal load caused by ETU at the average pump power threshold based on the first thermal load at the average pump power threshold specifically comprises:
obtaining the second thermal load caused by ETU at the average pump power threshold ξETU based on the first thermal load at the average pump power threshold by using the formula, ξ
      
        E
        ⁢
        T
        ⁢
        U
      
    
    =
    
      
        
          λ
          f
        
        
          λ
          P
        
      
      ⁡
      
        [
        
          
            ξ
            nolasing
          
          -
          
            (
            
              1
              -
              
                
                  λ
                  P
                
                
                  λ
                  f
                
              
            
            )
          
        
        ]
      
    
  
  ,

 wherein
λP represents the wavelength of the pump laser, λf represents the average pump power threshold of the laser system, ξETU represents the second thermal load caused by ETU before the laser is emitted, and ξnolasing represents the first thermal load before the laser is emitted.