研究了半导体激光器混沌耦合同步及其在光学逻辑门的应用。利用两个混沌半导体激光器的耦合，构建了基本全光及组合光电逻辑门的理论模型及计算原理。一是利用光的外部调制方法进行两相互耦合激光的调制，控制激光混沌同步或者非同步，实现全光逻辑门的功能与计算；二是既进行外部光调制，也进行激光器的电流调制，在光和电流同时联合调制控制下，使系统出现混沌同步或者非同步，实现组合光电逻辑门的功能与计算。具体提出了全光XNOR、NOR、NOT、组合光电NOR逻辑门及逻辑计算方法，数值模拟结果证明了系统方案的可行性。

Chaotic synchronization of semiconductor lasers with the coupling and its application in optical logic gates are studied. The constructions of the fundamental all-optical and optoelectronic logic gates using two chaotic lasers due to the mutual coupling and their computational principle are presented theoretically. All-optical logic gates are finally performed by synchronizing or unsynchronizing appropriately the two chaotic states via modulating the coupling light. And the optoelectronic logic gate is implemented by synchronizing or unsynchronizing appropriately the two chaotic states via modulating the current and coupling light together. All-optical XNOR, NOR, NOT, optoelectronic logic gates and their logic computational methods are presented. Numerical simulative results validate the feasibility of the system.