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Phenomenological model analysis for semiconductor optical amplifiers and application to time-domain digital polarization encoding

机译:半导体光放大器的现象学模型分析及其在时域数字偏振编码中的应用

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摘要

We propose and demonstrate that semiconductor optical amplifiers (SOAs) for each wavelength of the input can be described by a lumped-elements sequence of a partly linear polarizer and a retarder followed by a polarization-independent amplifier, and further obtain two necessary conditions for the valuable orthogonal polarization rotation (OPR), which will be instructive for SOA-based all-optical signal processing. Subsequently we implement photoinduced OPR by controlling an approx2.5 mW pump laser and find the optimal pump wavelength should be an approx0.4 nm interval around the central wavelength of the probe laser. Therefore we propose a time-domain digital polarization encoding scheme based on photoinduced OPR with cross-gain modulation in a SOA and perform it well in a 15 km single-mode-fiber system at 2.5 Gbits/s, which is applicable to optical-power-equalized fiber communication.
机译:我们提出并证明,对于输入的每个波长,半导体光放大器(SOA)可以由部分线性偏振器和延迟器的集总元素序列以及与偏振无关的放大器来描述,并进一步获得两个必要条件有价值的正交偏振旋转(OPR),这将对基于SOA的全光信号处理具有指导意义。随后,我们通过控制约2.5 mW的泵浦激光器来实现光诱导OPR,并发现最佳泵浦波长应在探针激光器中心波长附近约0.4 nm的间隔内。因此,我们提出了一种基于光诱导OPR的时域数字极化编码方案,该方案在SOA中具有交叉增益调制,并在15 km单模光纤系统中以2.5 Gbits / s的速度很好地执行,这适用于光功率均衡的光纤通信。

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