| 摘要 |
PROBLEM TO BE SOLVED: To prevent the interference of optical cells and optical leakage components at the time of simultaneously inputting the optical cells and the optical leakage components to an optical multiplexing means (photocoupler for instance). SOLUTION: This device is provided with first and second input ports 10a and 10b, an optical switch 12, first and second optical delay lines 14a and 14b, the photocoupler 16 and one output port 18 and is provided with an optical wavelength shifter 20 in the middle of the first optical delay line 14a further. In this case, by the optical wavelength shifter 20, the wavelength of optical packets in the stage of performing output from the first and second optical delay lines 14a and 14b, that is the stage of performing input to the photocoupler 16, is made different for the respective transmitted optical delay lines. |
