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| [2] | IEEE J.Q,E,1987,QE—23,No,2,P.229, |
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| [1] | Appl,Opt,1974,Vol.13,No,2,P,353. |
| [2] | IEEE J.Q,E,1987,QE—23,No,2,P.229, |
| [3] | Laser Handbook,North—Holland,1979,Vol,3,P,5, |
| [4] | 周炳砚等编,《激光原理》,国防工业出版社,1980年,第371页. |
| [5] | IEEE J,Q.E,1976,QE—12,No.1,P,35. |