WAVELENGTH-DIVISION MULTIPLEXER, OPTICAL SWITCH APPARATUS, AND OPTICAL SWITCH CONTROL METHOD

摘要

Embodiments of the present invention provide a WDM, an optical switch device and a control method of an optical switch. The WDM includes three ports: a common port, a pass port and a reflection port, the three ports each include an optical fiber array and a micro lens array matching the optical fiber array; an optical signal output from any optical fiber in a first optical fiber array of the common port is transmitted to a filter after passing through a corresponding micro lens in a first micro lens array of the common port; transmitted light of the optical signal enters a corresponding micro lens in a second micro lens array of the pass port after passing through the filter, and then the light is output by a corresponding optical fiber in a second optical fiber array of the pass port; reflected light of the optical signal enters a corresponding micro lens in a third micro lens array of the reflection port after being reflected by the filter, and then the light is output by a corresponding optical fiber in a third optical fiber array of the reflection port. The number of wavelength division multiplexers in an optical network can be reduced by the embodiments of the present invention.