Photonics Research, 2016, 4 (5): 05000168, Published Online: Nov. 23, 2016  

Experimental performance evaluation of quadrature amplitude modulation signal transmission in a silicon microring Download: 1104次

Author Affiliations
Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
Abstract
We comprehensively characterize the transmission performance of m-ary quadrature amplitude modulation (m-QAM) signals through a silicon microring resonator in the experiment. Using orthogonal frequency-division multiplexing based on offset QAM (OFDM/OQAM) which is modulated with m-QAM modulations, we demonstrate low-penalty data transmission of OFDM/OQAM 64-QAM, 128-QAM, 256-QAM, and 512-QAM signals in a silicon microring resonator. The observed optical signal-to-noise ratio (OSNR) penalties are 1.7 dB for 64-QAM, 1.7 dB for 128-QAM, and 3.1 dB for 256-QAM at a bit-error rate (BER) of 2 × 10?3 and 3.3 dB for 512-QAM at a BER of 2 × 10?2. The performance degradation due to the wavelength detuning from the microring resonance is evaluated, showing a wavelength range of ~0.48 nm with BER below 2 × 10?3. Moreover, we demonstrate data transmission of 191.2-Gbit/s simultaneous eight wavelength channel OFDM/OQAM 256-QAM signals in a silicon microring resonator, achieving OSNR penalties less than 2 dB at a BER of 2 × 10?2.

Chengcheng Gui, Jian Wang. Experimental performance evaluation of quadrature amplitude modulation signal transmission in a silicon microring[J]. Photonics Research, 2016, 4(5): 05000168.

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