3d-mems optical switch

A 3-dimensional micro-electro-mechanical system (3D-MEMS) optical switch, the 3D-MEMS optical switch comprising:

• an input port collimator array;
• an input port MEMS micro-mirror;
• an output port MEMS micro-mirror;
• an output port collimator array;
• a wedge prism;
• a light-splitting triangular prism;
• an input port power detector (PD) array;
• an output port PD array;
• and
• a core optical switch controller,
• wherein the wedge prism is disposed between the input port collimator array and the input port MEMS micro-mirror, the wedge prism being configured to:
• split an input optical signal from the input port collimator array into two channels of optical signals,
• transmit one channel of optical signal to the input port MEMS micro-mirror, and
• reflect the other channel of optical signal to the input port PD array,
• wherein the input port PD array is configured to detect a first optical power of the input optical signal reflected by the wedge prism,
• wherein the output port MEMS micro-mirror is configured to reflect to the light-splitting triangular prism the optical signal from the input port MEMS micro-mirror,
• wherein the light-splitting triangular prism is disposed between the output port MEMS micro-mirror and the output port collimator array, the light-splitting triangular being configured to:
• split an output optical signal from the output port MEMS micro-mirror into two channels of optical signals,
• transmit one channel of optical signal to the output port collimator array, and
• reflect the other channel of optical signal to the output port PD array,
• wherein the output port PD array is configured to detect a second optical power of the output optical signal reflected by the light-splitting triangular prism, and
• wherein the core optical switch controller is configured to determine, according to the first optical power and the second optical power, whether at least one of the input port MEMS micro-mirror and the output port MEMS micro-mirror needs to be adjusted, and when an adjustment is needed, adjust at least one of the input port MEMS micro-mirror and the output port MEMS micro-mirror.