Optical switch, optical network and optical chip

The invention discloses an optical switch, an optical network and an optical chip. The optical switch comprises a first basic optical switch, a second basic optical switch and four ports. Each of the first basic optical switch and the second basic optical switch includes two first ports and two second ports. The four ports include one of the two first ports of the first basic optical switch, one of the two second ports of the first basic optical switch, and two selected ports of the two first ports and the two second ports of the second basic optical switch. The two selected ports are two first ports of the second basic optical switch or two second ports of the second basic optical switch. The first base optical switch and the second base optical switch are configured such that an optical signal input to any one of the four ports is delivered to one or more of the other of the four ports. 一种光开关、光网络和光芯片。光开关包括第一基本光开关、第二基本光开关和四个端口。第一基本光开关和第二基本光开关中的每一个均包括两个第一端口和两个第二端口。四个端口包括第一基本光开关的两个第一端口中的一个、第一基本光开关的两个第二端口中的一个、以