It is summarized for current all-optical XOR logic technology, schemes investigated and compared include different designs based on semiconductor optical amplifiers (SOA), especially the configurations employing interferometers.

• 摘要文中对现有的全光异或逻辑门方案作了一个概括，比较了基于半导体光放大器(SOA)的各种设计，特别是带有干涉结构的技术方案。