1 × N-channel optical switch based on optical waveguide array and MEMS micromirror

With the construction of the new generation of intelligent optical network, the demand for ROADM (Reconfigurable Optical Add-Drop Multiplexer), which is composed of WSS (Wavelength Selective Switch) and MCS (Multicast Switch), is increasing rapidly. Aiming at the 1 × N-channel optical switch, which is the core component of MCS, a technical scheme based on optical waveguide array and MEMS micromirror is proposed in this paper. The optical waveguide array with bending transition part is used as the input / output channel instead of the traditional optical fiber array, which can control the crosstalk and greatly reduce the off-axis amount of the edge channel. At the same time, two collimating lenses are used to further reduce the off-axis aberrations of the edge channels to achieve more output channels.