Holey Fibers for Low Bending Loss. - Ning Guan; Katsuaki Izoe; Katsuhiro Takenaga; Ryuji Suzuki; Kazuhiko Aikawa; Kuniharu Himeno (IEICE Trans. Electron., 2006)

32-core Dense SDM unidirectional transmission of PDM-16QAM signals over 1600 km using crosstalk-managed single-mode heterogeneous multicore transmission line. - Takayuki Mizuno; Kohki Shibahara; Hirotaka Ono 002; Y. Abe; Yutaka Miyamoto; Feihong Ye; Toshio Morioka; Yusuke Sasaki; Yoshimichi Amma; Katsuhiro Takenaga; S. Matsuo; Kazuhiko Aikawa; et al. (OFC, 2016)

Low-loss and Low-DMD few-mode multi-core fiber with highest core multiplicity factor. - Taiji Sakamoto; Takashi Matsui; Kunimasa Saitoh; S. Saitoh; Katsuhiro Takenaga; Takayuki Mizuno; Yoshiteru Abe; Kohki Shibahara; Yuki Tobita; Shinji Matsuo; Kazuhiko Aikawa; Shinichi Aozasa; et al. (OFC, 2016)

125 μm-cladding 2LP-mode and 4-core Multi-core Fibre with Air-hole Structure for Low Crosstalk in C+L Band. - Saki Nozoe; Taiji Sakamoto; Takashi Matsui; Yoshimichi Amma; Katsuhiro Takenaga; Yoshiteru Abe; Kyozo Tsujikawa; Shinichi Aozasa; Kazuhiko Aikawa; Kazuhide Nakajima (ECOC, 2017)

First Demonstration of Single-Mode MCF Transport Network with Crosstalk-Aware In-Service Optical Channel Control. - Klaus Pulverer; Takafumi Tanaka; Ulrich Häbel; Carlos Castro; Marc Bohn; Takayuki Mizuno; Akira Isoda; Kohki Shibahara; Tetsuro Inui; Yutaka Miyamoto; Yusuke Sasaki; Yoshimichi Amma; et al. (ECOC, 2017)

High Spatial Density Six-mode Seven-core Fibre for Repeated Dense SDM Transmission. - Taiji Sakamoto; Kunimasa Saitoh; Shota Saitoh; Kohki Shibahara; Masaki Wada; Yoshiteru Abe; Azusa Urushibara; Katsuhiro Takenaga; Takayuki Mizuno; Takashi Matsui; Kazuhiko Aikawa; Yutaka Miyamoto; et al. (ECOC, 2017)

Evaluation of Inter-Core Skew in an Uncoupled Multicore Fibre. - Yusuke Sasaki; Keisuke Hirakawa; Itaru Ishida; Shoichiro Matsuo; Kazuhiko Aikawa (ECOC, 2017)

All-fiber optical interconnection for dissimilar multicore fibers with low insertion loss. - Yongmin Jung; John R. Hayes; Yusuke Sasaki; Kazuhiko Aikawa; Shaif-Ul Alam; David J. Richardson (OFC, 2017)

1-Pb/s (32 SDM/46 WDM/768 Gb/s) C-band dense SDM transmission over 205.6-km of single-mode heterogeneous multi-core fiber using 96-Gbaud PDM-16QAM channels. - Takayuki Kobayashi; Masanori Nakamura; Fukutaro Hamaoka; Kohki Shibahara; Takayuki Mizuno; Akihide Sano; H. Kawakami; Akira Isoda; Munehiko Nagatani; Hiroshi Yamazaki; Yutaka Miyamoto; Yoshimichi Amma; et al. (OFC, 2017)

In-service crosstalk monitoring for dense space division multiplexed multi-core fiber transmission systems. - Takayuki Mizuno; Akira Isoda; Kohki Shibahara; Yutaka Miyamoto; Saurabh Jain; Shaif-Ul Alam; David J. Richardson; Carlos Castro; Klaus Pulverer; Yusuke Sasaki; Yoshimichi Amma; Katsuhiro Takenaga; et al. (OFC, 2017)

Low crosstalk 125 μm-cladding multi-core fiber with limited air-holes fabricated with over-cladding bundled rods technique. - Saki Nozoe; Ryohei Fukumoto; Taiji Sakamoto; Takashi Matsui; Yoshimichi Amma; Katsuhiro Takenaga; Kyozo Tsujikawa; Shinichi Aozasa; Kazuhiko Aikawa; Kazuhide Nakajima (OFC, 2017)

Thermally expanded core fiber with a 4-μm mode field diameter suitable for low-loss coupling with silicon photonic devices. - Takuya Oda; Keisuke Hirakawa; Kentaro Ichii; Satoshi Yamamoto; Kazuhiko Aikawa (OFC, 2017)

Single-mode 37-core fiber with a cladding diameter of 248 μm. - Yusuke Sasaki; Katsuhiro Takenaga; Kazuhiko Aikawa; Yutaka Miyamoto; Toshio Morioka (OFC, 2017)

Kramers-Kronig Detection with Adaptive Rates for 909.5 Tbit/s Dense SDM and WDM Data Channels. - Deming Kong; Edson Porto da Silva; Yusuke Sasaki; Kazuhiko Aikawa; Francesco Da Ros; Michael Galili; Toshio Morioka; Leif K. Oxenløwe; Hao Hu 009 (ECOC, 2018)

1.2 Pb/s Transmission Over a 160 µm Cladding, 4-Core, 3-Mode Fiber, Using 368 C+L band PDM-256-QAM Channels. - Ruben S. Luis; Georg Rademacher; Benjamin J. Puttnam; Tobias A. Eriksson; Hideaki Furukawa; Andrew Ross-Adams; Simon Gross; Michael J. Withford; Nicolas Riesen; Yusuke Sasaki; Kunimasa Saitoh; Kazuhiko Aikawa; et al. (ECOC, 2018)

A Coherent Kramers-Kronig Receiver for 3-Mode Few-Mode Fiber Transmission. - Ruben S. Luis; Georg Rademacher; Benjamin J. Puttnam; Satoshi Shinada; Hideaki Furukawa; Ryo Maruyama; Kazuhiko Aikawa; Naoya Wada (ECOC, 2018)

Experimental Investigation of Intermodal Nonlinear Signal Degradation in a Few-Mode Fiber Transmission System. - Georg Rademacher; Ruben S. Luis; Benjamin J. Puttnam; Hideaki Furukawa; Ryo Maruyama; Kazuhiko Aikawa; Yoshinari Awaji; Naoya Wada (ECOC, 2018)

120 Spatial Channel Few-Mode Multi-Core Fibre with Relative Core Multiplicity Factor Exceeding 100. - Taiji Sakamoto; Kunimasa Saitoh; Shota Saitoh; Yoshiteru Abe; Katsuhiro Takenaga; Azusa Urushibara; Masaki Wada; Takashi Matsui; Kazuhiko Aikawa; Kazuhide Nakajima (ECOC, 2018)

High Density Uncoupled Multicore Fibres Employing Thermal Expanded Core Techniques for Low Connection Loss. - Yusuke Sasaki; Katsuhiro Takenaga; Kazuhiko Aikawa (ECOC, 2018)

159 Tbit/s C+L Band Transmission over 1045 km 3-Mode Graded-Index Few-Mode Fiber. - Georg Rademacher; Ruben S. Luis; Benjamin J. Puttnam; Tobias A. Eriksson; Erik Agrell; Ryo Maruyama; Kazuhiko Aikawa; Hideaki Furukawa; Yoshinari Awaji; Naoya Wada (OFC, 2018)

93.34 Tbit/s/mode (280 Tbit/s) Transmission in a 3-Mode Graded-Index Few-Mode Fiber. - Georg Rademacher; Ruben S. Luis; Benjamin J. Puttnam; Roland Ryf; Hideaki Furukawa; Ryo Maruyama; Kazuhiko Aikawa; Akihiro Maruta; Yoshinari Awaji; Naoya Wada (OFC, 2018)

Demonstration of a Rectangularly-Arranged Strongly-Coupled Multi-Core Fiber. - S. Saitoh; Katsuhiro Takenaga; Kazuhiko Aikawa (OFC, 2018)

Record Spectral Efficient Transmission of 11.24 Bit/s/Hz/mode over 30 km Few-Mode Fiber. - Georg Rademacher; Ruben S. Luís; Benjamin J. Puttnam; Tobias A. Eriksson; Hideaki Furukawa; Yoshinari Awaji; Ryo Maruyama; Kazuhiko Aikawa; Naoya Wada (PSC, 2018)

Non-circular multi-core fibers for super-dense SDM. - Md. Nooruzzaman; Kunimasa Saitoh; Yusuke Sasaki; Katsuhiro Takenaga; Kazuhiko Aikawa; Toshio Morioka (IEICE Electron. Express, 2018)

Multi-core Fiber Fabrication in Over-Cladding Bundled Rods Method Applying Polygonal Rods. - Ryohei Fukumoto; Katsuhiro Takenaga; Kazuhiko Aikawa (OECC/PSC, 2019)

Cladding Diameter Dependence of Inter-Core Crosstalk in Heterogeneous Multicore Fibers. - Kenta Nishimura; Takanori Sato; Takeshi Fujisawa; Yoshimichi Amma; Katsuhiro Takenaga; Kazuhiko Aikawa; Kunimasa Saitoh (OECC/PSC, 2019)

Multicore Fiber Connectors with Small Mode Field Diameter. - Yusuke Sasaki; Katsuhiro Takenaga; Kazuhiko Aikawa (OECC/PSC, 2019)

Petabit Class Transmission and Switching. - Ruben S. Luis; Benjamin J. Puttnam; Georg Rademacher; Tobias A. Eriksson; Yusuke Hirota; Satoshi Shinada; Andrew Ross-Adams; Simon Gross; Michael J. Withford; Ryo Maruyama; Kazuhiko Aikawa; Yoshinari Awaji; et al. (ECOC, 2020)

Characterization and Optical Compensation of LP01 and LP11 Intra-Modal Nonlinearity in Few-Mode Fibers. - Francesco Da Ros; Pawel M. Kaminski; Georg Rademacher; Benjamin J. Puttnam; Ruben S. Luis; Werner Klaus; Hideaki Furukawa; Ryu Maruyama; Kazuhiko Aikawa; Toshio Morioka; Leif K. Oxenløwe; Naoya Wada; et al. (OFC, 2020)

Asymmetrically Arranged 8-Core Fibers with Center Core Suitable for Side-View Alignment in Datacenter Networks. - Yusuke Sasaki; M. Ozeki; Katsuhiro Takenaga; Kazuhiko Aikawa (OFC, 2020)

Variations in the Optical Characteristics of 200 μm and 250 μm Coated Multicore Fibres Owing to Cabling. - Yusuke Sasaki; Ryohei Fukumoto; Katsuhiro Takenaga; Shogo Shimizu; Kazuhiko Aikawa (ECOC, 2021)

Optical Fiber Cable Employing 200 µm-Coated Multicore Fibers for High Density Wiring in Datacom. - Yusuke Sasaki; Ryohei Fukumoto; Katsuhiro Takenaga; Shogo Shimizu; Kazuhiko Aikawa (OFC, 2021)

Side-view Rotational Alignment Method for Trench-assisted 4-core Fibers. - Masaki Ohzeki; Yusuke Sasaki; Katsuhiro Takenaga; Kentaro Ichii; Kazuhiko Aikawa (OFC, 2022)

Investigation of Wideband Distributed Raman Amplification in a Few-Mode Fiber Link. - Georg Rademacher; Ruben S. Luis; Benjamin J. Puttnam; Juan Carlos Alvarado-Zacarias; Rodrigo Amezcua Correa; Kazuhiko Aikawa; Yoshinari Awaji; Hideaki Furukawa (OFC, 2022)

Experimental Investigation of Nonlinear Signal Distortions in Multi-Span FMF Transmission. - Georg Rademacher; Benjamin J. Puttnam; Ruben S. Luís; Kazuhiko Aikawa; Yoshinari Awaji; Hideaki Furukawa (OECC/PSC, 2022)

Development of Four-Core MCFs with Standard Cladding Diameter from High-Core-Count MCFs. - Kazuhiko Aikawa; Takuya Oda; Shota Kajikawa; Kohei Ozaki; Mayu Iizuka; Katsuhiro Takenaga; Akito Nishimura; Kentaro Ichii (OFC, 2024)

Experimental Validation of Partitioned MIMO Equalizer with Low-Resolution Interface for Mitigation of Mode-Group Coupling in SDM Transmission over 3-Mode Fiber. - Nicolas Braig-Christophersen; Aymeric Arnould; Robert Elschner; Carsten Schmidt-Langhorst; Ruben S. Luis; Pamir Oezsuna; Kallyan Das; Juan L. Moreno Morrone; Robert Emmerich; Kazuhiko Aikawa; Hideaki Furukawa; Georg Rademacher; et al. (OFC, 2025)