| 摘要 |
In a wavelength division multiplex optical transmitter for multiplexing a plurality of input optical signals to produce an output optical signal, use is made of a plurality of optical band pass filters (BPF1-BPFn) each of which is inserted between an optical amplifier (AMP1-AMPn) and an output side optical coupler (CPL). The input optical signals are different from one another in wavelength and are supplied with input optical modulator sections (MOD1-MODn, SCR1-SCRn), respectively. The optical modulator sections modulate the input optical signals into a plurality modulated optical signals. The optical amplifiers amplify the modulated optical signals into amplified signals. The optical band pass filters filter the amplified optical signals into filtered optical signals. The output side optical coupler multiplexes the filtered optical signals to produce the output optical signal. <IMAGE> |
