Optical virtual-circuit-switching network system and optical switch thereof

An optical virtual-circuit-switching network system, comprising:

• a plurality of optical switches connected to each other through the optical fibers to form an optical interconnected subsystem, wherein each of the optical switches comprises:
• an optical outbound handling module, comprising:
• a multiplexer combining a plurality of initial optical signals, and outputting at least one first combined optical signal and at least one second combined optical signal;
• at least one first horizontal amplifier receiving and amplifying the at least one first combined optical signal from the multiplexer;
• at least one first vertical amplifier receiving and amplifying the at least one second combined optical signal from the multiplexer;
• at least one first horizontal splitter receiving the at least one first combined optical signal amplified by the at least one first horizontal amplifier, and outputting a plurality of first horizontal optical signals to at least one horizontal optical switch;
• and
• at least one first vertical splitter receiving the at least one second combined optical signal amplified by the at least one first vertical amplifier, and outputting a plurality of first vertical optical signals to at least one vertical optical switch;
• at least one second horizontal splitter receiving at least one second horizontal optical signal from the at least one horizontal optical switch, and outputting a plurality of selectable horizontal optical signals;
• at least one second vertical splitter receiving at least one second vertical optical signal from the at least one vertical optical switch, and outputting a plurality of selectable vertical optical signals;
• an optical pass around module, comprising:
• at least one first horizontal wavelength selective switch receiving the selectable horizontal optical signals from the at least one second horizontal splitter, and outputting at least one first redirected output optical signal;
• at least one first vertical wavelength selective switch receiving the selectable vertical optical signals from the at least one second vertical splitter, and outputting at least one second redirected output optical signal;
• at least one second horizontal amplifier receiving and amplifying the at least one second redirected output optical signal from the at least one first vertical wavelength selective switch;
• at least one second vertical amplifier receiving and amplifying the at least one first redirected output optical signal from the at least one first horizontal wavelength selective switch;
• at least one third horizontal splitter receiving the at least one second redirected output optical signal amplified by the at least one second horizontal amplifier, and outputting a plurality of third horizontal optical signals to the at least one horizontal optical switch;
• and
• at least one third vertical splitter receiving the at least one first redirected output optical signal amplified by the at least one second vertical amplifier, and outputting a plurality of third vertical optical signals to the at least one vertical optical switch;
• an optical inbound handling module, comprising:
• at least one second horizontal wavelength selective switch receiving the selectable horizontal optical signals from the at least one second horizontal splitter, and outputting at least one first output optical signal;
• at least one second vertical wavelength selective switch receiving the selectable vertical optical signals from the at least one second vertical splitter, and outputting at least one second output optical signal;
• an output amplifier receiving the at least one first output optical signal from the at least one second horizontal wavelength selective switch, and the at least one second output optical signal from the at least one second vertical wavelength selective switch, and amplifying the first output optical signal and the second output optical signal;
• and
• a demultiplexer receiving the first output optical signal and the second output optical signal amplified by the output amplifier, and decomposing the first output optical signal and the second output optical signal into a plurality of final optical signals;
• and
• a plurality of dense wavelength-division multiplexing transceivers receiving the final optical signals from the demultiplexer, and converting each of the final optical signals to a final electrical signal.