OPTICAL TRANSMITTER

To provide an optical transmitter that can reduce power consumption.SOLUTION: An optical transceiver 1 includes TOSAs 3A and 3B that respectively generate two multiplexed optical signals, a power supply line L1 set to a voltage V1, a power supply circuit 13 connected to the power supply line L1 to g...

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Bibliographische Detailangaben
1. Verfasser: MURAYAMA SATORU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide an optical transmitter that can reduce power consumption.SOLUTION: An optical transceiver 1 includes TOSAs 3A and 3B that respectively generate two multiplexed optical signals, a power supply line L1 set to a voltage V1, a power supply circuit 13 connected to the power supply line L1 to generate a drive current, a semiconductor optical amplifier 9A that receives the drive current output from the power supply circuit 13 and amplifies one of multiplexed optical signals, a semiconductor optical amplifier 9B that receives the drive current output from the semiconductor optical amplifier 9A and amplifies the other multiplexed optical signal, a power supply line L2 set to a voltage V2 lower than the voltage V1 and receiving the drive current output from the semiconductor optical amplifier 9B, and an optical multiplexer 11 that multiplexes and outputs the two multiplexed optical signals amplified by semiconductor optical amplifiers 9A and 9B.SELECTED DRAWING: Figure 1 【課題】消費電力を低減することが可能な光送信器を提供する。【解決手段】光トランシーバ1は、2つの多重化光信号をそれぞれ生成するTOSA3A,3Bと、電圧V1に設定される電源線L1と、電源線L1に接続され駆動電流を生成する給電回路13と、給電回路13から出力された駆動電流を受けて一方の多重化光信号を増幅する半導体光増幅器9Aと、半導体光増幅器9Aから出力された駆動電流を受けて他方の多重化光信号を増幅する半導体光増幅器9Bと、電圧V1より低い電圧V2に設定され、半導体光増幅器9Bから出力された駆動電流を受ける電源線L2と、半導体光増幅器9A,9Bによって増幅された2つの多重化光信号を合波して出力する光合波器11とを備える。【選択図】図1