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从微腔半导体激光器速率方程出发，分析讨论了微腔激光器的脉码调制特性，发现微腔具有较规则的脉冲响应，可以减少误码率；自发发射因子为０．１的微腔，具有脉码率高达５０Ｇｂｉｔ／ｓ良好的调制眼图，微腔激光器在光互联中将有广泛的应用前景。模拟了以微腔激光器为光源的光纤通信系统，给出脉码率为１０Ｇｂｉｔ／ｓ传输不同距离的接收眼图，证明能够实现６０ｋｍ的传输。
According to the rate equation of microcavity semiconductor laser, the pulse code modulation characteristics of microcavity laser are analyzed and discussed. It is found that the microcavity has regular pulse response, which can reduce the bit error rate. The microcavity with spontaneous emission factor of 0.1, The code rate up to 50Gbit / s good modulation eye diagram, micro-cavity laser in optical interconnection will have a wide range of applications. The optical communication system with microcavity laser as light source is simulated. The received eye pattern with different pulse rate of 10Gbit / s is transmitted, which proves that it can transmit 60km.