MULTIPLE WAVELENGTH TRANSMITTING DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce an installation floor area by making an initial introduction cost inexpensive when there is a small number of initially used wavelengths in a multiple wavelength transmitting device.

SOLUTION: This multiple wavelength transmitting device having multiple wavelength parts 3-1 to 3-i and band-distributed compensating parts 4-1 to 4-i in accordance with i pieces of wavelength bands and for making the i pieces of wavelength bands after band-distributed compensation multiple can insert pseudo optical light by a pseudo optical light generating part 20 at an input part of each wavelength band of the band multiple part 10 by using optical signal switching devices 11-1 to 11-i. Thus, the multiple wavelength parts and the band-distributed compensating parts corresponding to a use wavelength band have only to be provided, and when the number of initially used wavelengths is small, an initial introduction cost is low and the installation floor area is small.

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