Adaptive and Intelligent Digital Signal Processing for Improved Optical Interconnection

Adaptive and Intelligent Digital Signal Processing for Improved Optical Interconnection

SUN Lin1, DU Jiangbing2, TANG Ningfeng2, HE Zuyuan1

(1. State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China;
2. State Key Laboratory of Mobile Network and Mobile Multimedia Technology, ZTE Corporation, Shenzhen, Guangdong 518055, China )

Abstract: In recent years, explosively increasing data traffic has been boosting the continuous demand of high speed optical interconnection inside or among data centers, high performance computers and even consumer electronics. To pursue the improved interconnection performance of capacity, energy efficiency and simplicity, effective approaches are demonstrated including particularly advanced digital signal processing (DSP) methods. In this paper, we present a review about the enabling adaptive DSP methods for optical interconnection applications, and a detailed summary of our recent and ongoing works in this field. In brief, our works focus on dealing with the specific issues for short-reach interconnection scenarios with adaptive operation, including signal-to-noise-ratio (SNR) limitation, level nonlinearity distortion, energy efficiency consideration and the decision precision.
Keywords: optical interconnection; digital signal processing; advanced modulation formats