After taking account of the logarithmic relation between the gain and the carrier concentration in quantum well material,the analytical expressions of the peak response frequency and the 3 dB frequency response bandwidth are obtained.

• 在考虑了量子阱材料中的增益和载流子浓度之间的对数关系后,得到了VCSOA的峰值响应频率以及3 dB频率响应带宽的解析表达式。