【摘要】 本文研究了在开放的简单三能级无粒子数反转激光系统中驱动场位相涨落对增益和色散的影响。发现 ,驱动场位相涨落将导致有限线宽。随着这个线宽的增加 ,增益和色散将单调地减小 ;当线宽不为零时 ,在零吸收时系统能够产生的大折射率 ,这与从封闭的 V型三能级系统得到的结论大不相同更多还原

【Abstract】 We investigate the effects of the driving field phase fluctuation on the gain and dispersion and population differences in an open simple three level non inversion lasing system.We find that the phase fluctuation of the driving field will results in a finite line width.With the line width increasing,both the gain and dispersion decrease monotonously;when the line width doesnt equal to zero,the system can generate a large refractive index along with zero absorption,and this conclusion is much different from that obtained from a closed V type three level system.更多还原