Photonic circuit board
A photonic circuit board comprises a connection setting circuit, a group of electric wires for connecting the connection setting circuit and a plurality of devices, an optical I/O (input/output) device connected to the connection setting circuit and a two dimensional optical transmission medium connected to the optical I/O device and adapted to transmit optical signals. The connection setting circuit includes a circuit capable of changing the mode of connection of the group of electric wires and the optical I/O device.
1. A circuit board comprising:
a sheet-shaped optical transmission medium for transmitting optical signals;
a plurality of optical I/O devices connected to the sheet-shaped optical transmission medium;
a reconfigurable integrated circuit connected to the plurality of optical I/O devices and a plurality of electronic devices; and
a mediating device for transmitting a signal to the reconfigurable integrated circuit such that the reconfigurable integrated circuit changes a route of connection by selecting an optical path from a plurality of optical paths among the plurality of electronic devices and the plurality of optical I/O devices in accordance with the signal,
wherein said optical I/O devices are photonic ball ICs.
2. A circuit board according to claim 1 , wherein the number of said optical I/O devices is smaller than the number of said electronic devices.
3. A circuit board according to claim 1 , wherein said reconfigurable integrated circuit is formed by using a field programmable gate array.
4. A circuit board according to claim 1 , wherein said reconfigurable integrated circuit connects two or more electronic devices to a single optical I/O device.