Patent ID: 6912344
Filing Date: 2005-06-28
Classification: G02F

Abstract:
1. A thermo-optic wave-guide switch comprising: a multi-mode wave-guide including an input port, a first output port, and a second output port, wherein the input port is located at one end of the multi-mode wave-guide, the first and second output ports are located at the other end of the multi-mode wave-guide, and the input port is shifted from the first output and the second output in an identical lateral direction of the multi-mode wave-guide, the multi-mode wave-guide further comprising: a thin film heater formed on one side of the multi-mode wave-guide, whereby when the thin film heater does not provide the multi-mode wave-guide with heat and a signal is received by the input port, the first output port outputs the signal in the cross state, and when the thin film heater provides the multi-mode wave-guide with heat and a signal is received by the input port, the second output port outputs the signal in the bar state.