Abstract
In this paper, we propose and demonstrate a single-wavelength bidirectional self-homodyne coherent (SHC) link over a 125 µm cladding diameter based multicore fiber (MCF). The 4-core MCF based link efficiently uses two cores for each direction of propagation. In either direction, one of the cores carries a dual-polarized 40 Gbaud 16-QAM signal, and the second core carries a 40 Gbaud 16-QAM signal in one of the polarizations with the carrier multiplexed in its orthogonal polarization. Thus, a 480 Gbps data transmission rate is achieved in either direction of propagation over the 12.8 km long 4-core MCF. The SHC link operates at the same wavelength for each of the directions and eliminates the need for reconfigurable transceivers. A low-cost DFB laser (linewidth = 1 MHz) is used to demonstrate the bidirectional link, and the bit error rates (BERs) of the received signals are ${\lt}5.5 \times {10^{- 4}}$. With higher baud rates, this approach can meet the capacity requirements of future short-reach data center interconnects (DCIs).
© 2024 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Benjamin J. Puttnam, Ruben Luis, José-Manuel Delgado-Mendinueta, Jun Sakaguchi, Werner Klaus, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, and Tetsuya Kawanishi
Opt. Express 22(18) 21185-21191 (2014)
Benjamin J. Puttnam, Jun Sakaguchi, José Manuel Delgado Mendinueta, Werner Klaus, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, and Tetsuya Kawanishi
Opt. Express 21(2) 1561-1566 (2013)
Yizhao Chen, Junda Chen, Mingming Zhang, Weihao Li, Deming Liu, and Ming Tang
Opt. Express 31(2) 3153-3167 (2023)