Reducing the backreflection impact by using homodyne detection in WDM single-fiber loopback access networks. - Masamichi Fujiwara; Shin Kaneko; Hideaki Kimura 002; Naoto Yoshimoto; Kiyomi Kumozaki (IEICE Electron. Express, 2009)

Loss budget in single-fiber loopback access networks with ASE light source considering gain compression effect of GS-SOA. - Masamichi Fujiwara; Hiro Suzuki; Hideaki Kimura 002; Kiyomi Kumozaki (IEICE Electron. Express, 2009)

Remote Frequency Stabilization Technique by Using MZI-AWG and Supervisory Frame Transfer in Coexistence-Type WDM-PON. - Masamichi Fujiwara; Tetsuya Suzuki; Hiro Suzuki; Takuya Tanaka; Naoki Ooba; Hideaki Kimura 002; Kiyomi Kumozaki (JOCN, 2009)

Optically-amplified PON system using XGM-based ALC technique. - Katsuhisa Taguchi; Masamichi Fujiwara; Takeshi Imai; Ken-Ichi Suzuki; Hiroshi Ishii 002; Naoto Yoshimoto (IEICE Electron. Express, 2011)

1G / 10G coexistence long-reach PON system using ALC burst-mode SOAs. - Masamichi Fujiwara; Ken-Ichi Suzuki; Katsuhisa Taguchi; Takeshi Imai; Hiroshi Ishii 002; Naoto Yoshimoto (IEICE Electron. Express, 2012)

Effect of forward error correction on spectral sliced WDM/TDMA-PON system. - Takashi Mitsui; Kazutaka Hara; Masamichi Fujiwara; Junichi Kani; Masashi Tadokoro; Naoto Yoshimoto (IEICE Electron. Express, 2012)

ALC Burst-Mode Optical Fiber Amplifiers for 10 Gb/s-Class Long-Reach PONs. - Masamichi Fujiwara; Ken-Ichi Suzuki; Takeshi Imai; Katsuhisa Taguchi; Hiroshi Ishii 002; Naoto Yoshimoto (JOCN, 2012)

Wide dynamic range burst-mode reception of symmetrically clipped DCO-OFDM using optical domain power equalizer. - Ryo Koma; Masamichi Fujiwara; Shunji Kimura; Naoto Yoshimoto; Hideaki Kimura 002 (ECOC, 2014)

Gain-controlled optical amplifier technologies for long-reach and high-splitting-ratio PON systems. - Masamichi Fujiwara (OFC, 2014)

Increasing splitting ratio of 10Gb/s-class PONs by using FW-DMF that acts as low loss splitter for upstream and conventional splitter for downstream. - Masamichi Fujiwara; Ken-Ichi Suzuki; Naoto Yoshimoto; Manabu Oguma; Shunichi Soma (OFC, 2014)

Effective ONU Accommodation through PON Systems with Multi-Stage Splitter Configuration Using ALC Burst-Mode SOAs. - Masamichi Fujiwara; Ken-Ichi Suzuki; Naoto Yoshimoto (IEICE Trans. Commun., 2014)

Compact bi-directional EDFAs to support extended power budget class of TWDM-PON. - Masamichi Fujiwara; Ryo Koma; Ken-Ichi Suzuki; Akihiro Otaka (ECOC, 2015)

High-splitting-ratio WDM/TDM-PONs using automatic gain controlled SOAs designed for central office use. - Masamichi Fujiwara; Ryo Koma; Katsuhisa Taguchi (OFC, 2015)

First field trial of 40-km reach and 1024-split symmetric-rate 40-Gbit/s X-tunable WDM/TDM-PON. - Katsuhisa Taguchi; Kota Asaka; Masamichi Fujiwara; Shin Kaneko; Tomoaki Yoshida; Yoshikazu Fujita; Hideyuki Iwamura; Masayuki Kashima; Satoshi Furusawa; Masahiro Sarashina; Hideaki Tamai; Akiya Suzuki; et al. (OFC, 2015)

High-Splitting-Ratio PON Systems Using a PLC-Based Funnel-Shaped Waveguide With Dual-Mode Fiber [Invited]. - Masamichi Fujiwara; Ken-Ichi Suzuki; Manabu Oguma; Shunichi Soma; Naoto Yoshimoto (JOCN, 2015)

Wide dynamic range burst-mode digital coherent detection using fast ALC-EDFA and pre-calculation of FIR filter coefficients. - Ryo Koma; Masamichi Fujiwara; Junichi Kani; Ken-Ichi Suzuki; Akihiro Otaka (OFC, 2016)

High Sensitivity and Wide Dynamic Range Burst-Mode Coherent Receiver that Controls Gains of a SOA and TIAs for Long-Reach and High-Splitting-Ratio PON. - Ryo Koma; Masamichi Fujiwara; Junichi Kani; Ken-Ichi Suzuki; Akihiro Otaka (ECOC, 2017)

Performance evaluation of CPFSK transmitters for TDM-based digital coherent PON upstream. - Masamichi Fujiwara; Ryo Koma; Junichi Kani; Ken-Ichi Suzuki; Akihiro Otaka (OFC, 2017)

Increasing Splitting Ratio of Extended-Reach WDM/TDM-PON by Using Central Office Sited Automatic Gain Controlled SOAs. - Masamichi Fujiwara; Ryo Koma (IEICE Trans. Commun., 2017)

Wide-Range Frequency Offset Compensation for CPFSK Used as TOM-Based Digital Coherent PON's Upstream Signals. - Takuya Kanai; Masamichi Fujiwara; Ryo Koma; Ryo Igarashi 001; Noriko Iiyama; Junichi Kani; Akihiro Otaka (ECOC, 2018)

Wide Range Carrier Frequency Offset Estimation Method using Training Symbols with Asymmetric Constellations for Burst-Mode Coherent Reception. - Ryo Koma; Masamichi Fujiwara; Ryo Igarashi 001; Takuya Kanai; Junichi Kani; Akihiro Otaka (OFC, 2018)

Burst-Mode Digital Signal Processing That Pre-Calculates FIR Filter Coefficients for Digital Coherent PON Upstream. - Ryo Koma; Masamichi Fujiwara; Jun-ichi Kani; Ken-Ichi Suzuki; Akihiro Otaka (JOCN, 2018)

Raman Amplification Based 40 km Reach 10G-EPON for Consolidation on the Central Office Building. - Ryo Igarashi 001; Masamichi Fujiwara; Takuya Kanai; Junichi Kani; Jun Terada (OECC/PSC, 2019)

Bus-Type Optical Access using DRA and Asymmetric Power Splitters for Accommodating Rural Users. - Ryo Igarashi 001; Masamichi Fujiwara; Takuya Kanai; Kazutaka Hara; Atsuko Kawakita; Hiro Suzuki; Junichi Kani; Jun Terada (OFC, 2020)

Real-Time Demonstration of 20-Gb/s QPSK Burst-Mode Digital Coherent Reception for PON Upstream under Clock Frequency Mismatch of 1.0 MHz. - Noriko Iiyama; Masamichi Fujiwara; Takuya Kanai; Hiro Suzuki; Junichi Kani; Jun Terada (OFC, 2020)

Reach Extension of 10G-EPON Upstream Transmission Using Distributed Raman Amplification and SOA. - Ryo Igarashi 001; Masamichi Fujiwara; Takuya Kanai; Hiro Suzuki; Junichi Kani; Jun Terada (IEICE Trans. Commun., 2020)

Converged Inter/Intra All-Optical DC Network Externally Distributing Optical Carriers to Coherent Transceivers. - Ritsuki Hamagami; Masamichi Fujiwara; Naotaka Shibata; Shin Kaneko; Jun-ichi Kani; Tomoaki Yoshida (OFC, 2024)

Port-Agnostic Path Establishment with Point-to-Multipoint Control of Remote User Terminals for Metro/Access-Integrated All-Photonics Network. - Ryo Igarashi 001; Shin Kaneko; Yasutaka Kimura; Naotaka Shibata; Takahiro Suzuki; Masamichi Fujiwara; Jun-ichi Kani; Tomoaki Yoshida (OFC, 2024)

Photonic gateway architecture extension and guard time-free initial connection method with point-to-multipoint remote control for metro/access converged all-photonics network. - Shin Kaneko; Yasutaka Kimura; Ryo Igarashi 001; Naotaka Shibata; Takahiro Suzuki; Masamichi Fujiwara; Jun-ichi Kani; Tomoaki Yoshida (J. Opt. Commun. Netw., 2024)

Polarization-independent Optical-carrier-distribution Scheme for Metro-access Converged DC Interconnects. - Ritsuki Hamagami; Masamichi Fujiwara; Shin Kaneko; Jun-ichi Kani; Tomoaki Yoshida (OFC, 2025)