Any-Double-Link Failure Tolerant Bypass/Backup Switchable WDM-PON Employing Path-Pair Shared Protection and Bidirectional Wavelength Pre-assignment. - Takahiro Kodama; Tomoya Nakagawa; Ryosuke Matsumoto (OFC, 2022)

C-Band Downlink Coherent System Assisted TWDM-PON System with Type B Protection and Dual-DSP Collaborative SIMO. - Shota Eguchi; Tomoya Nakagawa; Mizuki Inagaki; Keiji Shimada; Takahiro Kodama (OECC/PSC, 2022)

Double-link-failure-tolerant shared protection for fully coupled/half-split switchable point-to-multipoint coherent optical systems. - Takahiro Kodama; Tomoya Nakagawa; Shota Eguchi; Keiji Shimada; Ryosuke Matsumoto (J. Opt. Commun. Netw., 2024)