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首页> 外文期刊>Optics Letters >All-optical ultrawideband monocycle generation utilizing gain saturation of a dark return-to-zero signal in a semiconductor optical amplifier
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All-optical ultrawideband monocycle generation utilizing gain saturation of a dark return-to-zero signal in a semiconductor optical amplifier

机译:利用半导体光放大器中的暗归零信号的增益饱和的全光超宽带单周期发电

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摘要

We demonstrate a simple and compact scheme to generate ultrawideband (UWB) monocycle pulses utilizinggain saturation of a dark return-to-zero (RZ) signal in a semiconductor optical amplifier (SOA). When optical pulses with a dark RZ format propagate through the SOA, the output power at the rising edge will be overamplified compared with that at other durations due to the gain unsaturation. As a result, the output pulses are monocyclelike. The UWB frequency spectra at different injected currents, different input pulse widths, and different input wavelengths are analyzed. Our experiments show that the monocycle generation has good tolerance to the SOA bias current and the input signal wavelength.
机译:我们演示了一种简单而紧凑的方案,利用半导体光放大器(SOA)中的暗归零(RZ)信号的增益饱和来生成超宽带(UWB)单周期脉冲。当具有深色RZ格式的光脉冲通过SOA传播时,由于增益不饱和,与其他持续时间相比,上升沿的输出功率将被放大。结果,输出脉冲是单周期的。分析了不同注入电流,不同输入脉冲宽度和不同输入波长下的UWB频谱。我们的实验表明,单周期产生对SOA偏置电流和输入信号波长具有良好的容限。

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