Offset QPSK for 112 Gb/s coherent optical links

T. Detwiler, A. Stark, Y. Hsueh, S. Searcy, R. Lingle, B. Basch, G. Chang, S. Ralph
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引用次数: 5

Abstract

Offset QPSK is a linear modulation format exhibiting nearly constant envelop and hence may avoid nonlinear refraction effects and thus enable higher launch power and a commensurate increase in reach. We experimentally demonstrate >2dB advantage for OQPSK compared to QPSK for multi span coherent optical links using TrueWave® RS fiber.
用于112gb /s相干光链路的偏移QPSK
偏置QPSK是一种线性调制格式,表现出几乎恒定的包络,因此可以避免非线性折射效应,从而实现更高的发射功率和相应的距离增加。我们通过实验证明,与使用TrueWave®RS光纤的多跨相干光链路的QPSK相比,OQPSK具有>2dB的优势。
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