An FPGA implementation of 30Gbps security module for GPON systems. - Truong Quang Vinh; Ju Hyun Park; Young-Chul Kim 001; Kwang-Ok Kim (CIT, 2008)

Design of a Hybrid PON System for GPON Reach Extension on the Basis of Colorless DWDM-PON and 3R Regenerator. - Kwang-Ok Kim; Kyeong-Hwan Doo; Sang-Soo Lee (GLOBECOM, 2010)

Power saved OLT and ONU with cyclic sleep mode operating in WDM-PON. - Han Hyub Lee; Kwang-Ok Kim; Jong Hyun Lee; Sang-Soo Lee (ICTC, 2012)

Cost-effective 16-channel frame-level BM-to-CM conversion GPON reach extender. - Kwang-Ok Kim; Sang-Soo Lee; Jong Hyun Lee; Youn-Seon Jang (ICTC, 2013)

Performance analysis by burst overhead length in symmetric-rate 10G-EPON reach extender. - Kwangok Kim; Hwanseok Chung (ICTC, 2015)

Real-time demonstration of extended 10G-EPON capable of 128-way split on a 100 km distance using OEO-based PON extender. - Kwangok Kim; Hwanseok Chung (ICTC, 2016)

Demonstration of Bit-Level CWDM-Based Power Budget Extender Providing a High-Power Gain of 54dB in Symmetric-Rate 10G-EPON System. - Kwangok Kim; Hwanseok Chung; Younseon Jang (IEICE Trans. Commun., 2016)

Demonstration of High-capacity 50 Gb/s (2 × 25 Gb/s) EPON over Two Lanes using Low Complexity RS-based FEC. - Kwangok Kim; Han Hyub Lee; KyeongHwan Doo; SeungHwan Kim; Hwan Seok Chung (ECOC, 2017)

YANG Model based Optical Access SDN Control Architecture for Accommodating Heterogeneous Multi-vendor PON Systems. - Jung-Yeol Oh; Yeon-Chel Ryoo; Kwang-Ok Kim; Kyeong-Hwan Doo; Hwan Seok Chung (ECOC, 2017)

Real-Time Demonstration of Dynamic MPRS Channel Bonding for the Next Generation Multi-Channel 50G-EPON System. - Kwangok Kim; KyeongHwan Doo; Han Hyub Lee; Hwan Seok Chung (ECOC, 2018)

Improved Link Budget (35 dB) of 2×25 Gb/s WDM/TDM-PON by Using Crosstalk-free SOA and FEC. - Han Hyub Lee; Kyeong-Hwan Doo; Kwangok Kim; Sil-Gu Mun; Seung Hwan Kim; Hwan Seok Chung (OFC, 2018)

Optical Access and Transport Technologies for 5G and Beyond. - Kyeong-Hwan Doo; Kwangok Kim; Han Hyub Lee; Seung Hwan Kim; Heuk Park; Jung-Yeol Oh; Hwan Seok Chung (OECC/PSC, 2019)

Lessons Learn from A Tactile Internet Testbed: An Access Network Perspective. - Hwan Seok Chung; Han Hyub Lee; Kwang-Ok Kim; Kyung-Hwan Doo (OFC, 2021)

TDM-PON-Based Optical Access Network for Tactile Internet, 5G, and Beyond. - Hwan Seok Chung; Han Hyub Lee; Kwangok Kim; Kyeong-Hwan Doo; Yongwook Ra; Chansung Park (IEEE Netw., 2022)

Low-Complexity Architecture for High-Speed 50G-PON LDPC Decoder. - Kon-Woo Kwon; Kwangok Kim; KyeongHwan Doo; Hwanseok Chung; Jeong Woo Lee 001 (IEEE Access, 2025)