使用低电压调制和单端数字相干检测的40Gb/s偏振复用QPSK光传输
摘要
We demonstrate a novel 40-Gb/s transmission system over a 10101-km standard single mode fiber (SSMF) loop. This system features polarization multiplexed quadrature phase shift keying (PolMux-QPSK), lowvoltage modulation of 2-V peak-to-peak signal amplitude, and home-made 90 optical hybrid with singleended digital coherent detection. Any power amplifers before the modulator and balanced detectors are not used. In the case of low-voltage modulation, coherent detection is much less sensitive to modulator bias offset than delay interferometer-based demodulation.
引用本文（GB/T 7714）
Yong Feng, He Wen, Hanyi Zhang, 等. 使用低电压调制和单端数字相干检测的40Gb/s偏振复用QPSK光传输[J]. Chinese Optics Letters, 2010.
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