Real Time 6.4 Tbps (8×800G) SHCD Transmission through 1+8 Multicore Fiber for Co-Packaged Optical-IO Switch Applications

Abstract

We successfully demonstrated a real time 6.4Tbps self-homodyne coherent transmissions without polarization tracking through specially designed 10km multi-core fibers with 1 polarization maintaining core and 8 normal single-mode cores, using the wavelength unlocked DFB laser.

High-Speed Optical Fiber Communication in China

“…123−159 In order to meet this long-transmission and large-capacity broadband optical f iber communication, many universities, research institutes, telecom equipment manufacturers, and telecom operators in China have invested huge f inancial resources to investigate it. As can be seen from the top international conference on optical fiber communication (OFC 2022), in the field of optical fiber communication research, major Chinese universities include Huazhong University of Science and Technology, 160 Beijing University of Posts and Telecommunications, 161 Fudan University, 162 Shanghai Jiao Tong University, 163 Peking University, 164 University of Electronic Science and Technology of China, 165 University of Science and Technology of China, 166 University of Science & Technology Beijing, 167 Sun Yat-Sen University, 168 Xi'an University of Posts and Telecommunications, 169 Research institutes include China Mobile Research Institute, 170 China Information Communication Technologies Group Corporation, 171 Nokia Bell Laboratories (Shanghai), 172 Peng Cheng Laboratory, 173 Telecommunication Giants Huawei, 174 ZTE, 175 FiberHome, 176 etc. They have conducted in-depth research on ultrahigh-speed long-distance transmission, especially in coherent light detection technology based on digital signal processing, and achieved a series of record-breaking research results.…”

“…We will brief on the research contents of those major national projects. Projects of optical fiber transmission on ultrahigh-speed optical fiber communications include single-channel Tb/s 1000 km transmission, − P bit/s WDM signals 1000 km transmission, − 100 Tb/s 1000 km transmission, − few-mode multicore transmission systems, − 17-core three-mode transmission systems, − hollow fibers, − amplifiers for new bands, − and few-mode amplifiers. − The following will elaborate on several representative projects.…”

Silicon-based optoelectronic heterogeneous integration for optical interconnection

“…[1] However, with the outbreak of data-intensive computing applications and communication in post-Moore era, such as artificial intelligence (AI), high performance computing (HPC), hyper-scale data centers, disaggregated memory and storage, it has led to the development of a variety of powerful, high-throughput, system-on-chip (SoC) solutions that redefine traditional computing architectures, such as GPU and machine learning (ML) ASIC scaling, disaggregation of computation and memory, etc. [2][3][4][5] In these new computing architectures, higher bandwidth density and energy efficiency are required, but traditional electrical interconnection will be extremely challenging because of the large signal losses in copper interconnects at high data rate, such as 112 Gb/s, make it hard to transmit data further than a few centimeters. [6] The next-generation high-performance interconnection requires a new form of universal interconnection that eliminates the bottlenecks created by electrical interconnection.…”

A 4-Core Single-Mode Fiber Based Full Duplex Self-Homodyne Link for Coherent Data Center Interconnects

“…The MCFs can be used with SHC links to achieve much higher capacity, low-complexity short-reach interconnects, which has been explored in [12][13][14][15]. All of these links require a separate fiber or a separate core for the carrier.…”