| 摘要 |
PROBLEM TO BE SOLVED: To provide a WDM optical transmitter that applies orthogonal polarized wavelength multiplexing to optical signals to multiplex many more optical wavelengths and can be simply realized at a low cost. SOLUTION: The WDM optical transmitters are respectively provided with a PBS (polarized wave multiplex coupler) 54 that applies orthogonal polarized wave multiplexing to two optical signals (e.g. λ1 and λ2) as a set among a plurality of optical signals with different wavelengths λ1-λm, a DCF(dispersion compensation fiber) 56 that compensates a dispersion of one set of the multiplexed optical signals, and an optical amplifier 58 that amplifies a set of the compensated optical signals. A multiplexer 60 multiplexes the amplified optical signals of each set. |
