| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for optically loading a plurality of optical loading channels to a wavelength division multiplexing optical transmission system, an optical loading channel transmitter, a WDM optical transmitter and an optical transmission line. SOLUTION: A plurality of optical loading channels are generated in the form of an optical comb by using a periodic optical filtering apparatus integrated in a resonator configured as an optical loop. Next, a plurality of optical loading channels of the generated optical comb are outputted without data being modulated thereon. |
