Optical Heterodyne Image-Rejection Receiver for High-Density Optical Frequency Division Multiplexing System. - Terumi Chikama; Takao Naito; Shigeki Watanabe; Tetsuya Kiyonaga; Masuo Suyama; Hideo Kuwahara (IEEE J. Sel. Areas Commun., 1990)

Detection of neuron membranes in electron microscopy images using a serial neural network architecture. - Elizabeth Jurrus; António R. C. Paiva; Shigeki Watanabe; James R. Anderson 002; Bryan W. Jones; Ross T. Whitaker; Erik M. Jorgensen; Robert Marc; Tolga Tasdizen (Medical Image Anal., 2010)

Highly efficient data aggregation on single optical carrier through fiber frequency conversion of discrete multi-tone signal. - Masato Nishihara; Tomoyuki Kato; Toshiki Tanaka; Tomoo Takahara; Shigeki Watanabe; Lei Li 041; Zhenning Tao; Jens C. Rasmussen (OFC/NFOEC, 2013)

Narrow guard-band distributed Nyquist-WDM using fiber frequency conversion. - Thomas Richter 004; Robert Elschner; Carsten Schmidt-Langhorst; Tomoyuki Kato; Shigeki Watanabe; Colja Schubert (OFC/NFOEC, 2013)

Semi-Automated Neuron Boundary Detection and Nonbranching Process Segmentation in Electron Microscopy Images. - Elizabeth Jurrus; Shigeki Watanabe; Richard J. Giuly; António R. C. Paiva; Mark H. Ellisman; Erik M. Jorgensen; Tolga Tasdizen (Neuroinformatics, 2013)

Tolerances for add/drop operation of a coherent multiplexing node based on fiber frequency conversion. - Thomas Richter 004; Carsten Schmidt-Langhorst; Robert Elschner; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Colja Schubert (ECOC, 2014)

Coherent in-line substitution of OFDM subcarriers using fiber-frequency conversion and free-running lasers. - Thomas Richter 004; Carsten Schmidt-Langhorst; Robert Elschner; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Colja Schubert (OFC, 2014)

Distributed generation of a 400-Gb/s Nyquist 16QAM dense superchannel by fiber-frequency conversion. - Thomas Richter 004; Carsten Schmidt-Langhorst; Robert Elschner; Tomoyuki Kato; Shigeki Watanabe; Colja Schubert (OFC, 2014)

Coherent reception and 126 GHz bandwidth digital signal processing of CO-OFDM superchannel generated by fiber frequency conversion. - Takahito Tanimura; Tomoyuki Kato; Ryo Okabe; Shoichiro Oda; Thomas Richter 004; Robert Elschner; Carsten Schmidt-Langhorst; Colja Schubert; Jens C. Rasmussen; Shigeki Watanabe (OFC, 2014)

Spatially distributed aggregation of a polarization-division multiplexed superchannel by frequency conversion in fiber. - Thomas Richter 004; Robert Elschner; Carsten Schmidt-Langhorst; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Colja Schubert (ECOC, 2015)

Distributed 1-Tb/s all-optical aggregation capacity in 125-GHz optical bandwidth by frequency conversion in fiber. - Thomas Richter 004; Carsten Schmidt-Langhorst; Robert Elschner; Lutz Molle; Saleem Alreesh; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Johannes Karl Fischer; Colja Schubert (ECOC, 2015)

Broadband coherent-optical add/drop multiplexing over 400-GHz bandwidth by fiber frequency conversion. - Tomoyuki Kato; Takahito Tanimura; Thomas Richter 004; Carsten Schmidt-Langhorst; Robert Elschner; Colja Schubert; Shigeki Watanabe (OFC, 2015)

Generation of ultra-dense superchannels using frequency conversion in optical fibers. - Thomas Richter 004; Carsten Schmidt-Langhorst; Robert Elschner; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Colja Schubert (OFC, 2015)

Versatile coherent in-line 4-, 16-, 32-QAM subcarrier add/drop-multiplexing by optical frequency conversion. - Carsten Schmidt-Langhorst; Thomas Richter 004; Robert Elschner; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Colja Schubert (OFC, 2015)

In-line optical signal multiplexing by polarization-insensitive fiber frequency conversion. - Tomoyuki Kato; Takahito Tanimura; Takeshi Hoshida; Thomas Richter 004; Robert Elschner; Carsten Schmidt-Langhorst; Colja Schubert; Shigeki Watanabe (OFC, 2016)

Fiber Nonlinearity Mitigation in 800-km Transmission of a 1.6-Tb/s Superchannel Using Waveband-Shift-Free Optical Phase Conjugation. - Carsten Schmidt-Langhorst; Isaac Sackey; Robert Elschner; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Takeshi Hoshida; Colja Schubert (ECOC, 2017)

Continuously tunable optical frequency shift of 1.6-Tb/s superchannel up to THz-range by polarization switched frequency conversion. - Tomoyuki Kato; Shigeki Watanabe; Takahito Tanimura; Thomas Richter 004; Robert Elschner; Carsten Schmidt-Langhorst; Colja Schubert; Takeshi Hoshida (OFC, 2017)

Novel wavelength-shift-free optical phase conjugator used for fiber nonlinearity mitigation in 200-Gb/s PDM-16QAM transmission. - Isaac Sackey; Robert Elschner; Carsten Schmidt-Langhorst; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Takeshi Hoshida; Colja Schubert (OFC, 2017)

Any-to-Any Signal Frequency Shifting Across Entire C-Band Using Continuously Tuneable Optical Frequency Shifter. - Tomoyuki Kato; Shigeki Watanabe; Takahito Tanimura; Carsten Schmidt-Langhorst; Isaac Sackey; Robert Elschner; Colja Schubert; Takeshi Hoshida (ECOC, 2018)

Deep Neural Network Based Optical Monitor Providing Self-Confidence as Auxiliary Output. - Takahito Tanimura; Tomoyuki Kato; Shigeki Watanabe; Takeshi Hoshida (ECOC, 2018)

Fiber-Optic Frequency Shifting of THz-Range WDM Signal Using Orthogonal Pump-Signal Polarization Configuration. - Tomoyuki Kato; Shigeki Watanabe; Takahito Tanimura; Robert Elschner; Carsten Schmidt-Langhorst; Colja Schubert; Takeshi Hoshida (OFC, 2018)

Distributed Aggregation and Reception of a 400-Gb/s Net Rate Superchannel in a Single-Photodiode 110-GHz Kramers-Kronig Receiver. - Isaac Sackey; Carsten Schmidt-Langhorst; Robert Emmerich; Robert Elschner; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Takeshi Hoshida; Colja Schubert (OFC, 2018)

Data-analytics-based Optical Performance Monitoring Technique for Optical Transport Networks. - Takahito Tanimura; Takeshi Hoshida; Tomoyuki Kato; Shigeki Watanabe; Hiroyuki Morikawa (OFC, 2018)

Simple Learning Method to Guarantee Operational Range of Optical Monitors. - Takahito Tanimura; Takeshi Hoshida; Tomoyuki Kato; Shigeki Watanabe; Hiroyuki Morikawa (JOCN, 2018)

Investigation on Maximum Transmission Reach in Wavelength Converted Systems. - Tomohiro Yamauchi; Tomoyuki Kato; Goji Nakagawa; Shigeki Watanabe; Yuichi Akiyama; Takeshi Hoshida (OECC/PSC, 2019)

Convolutional Neural Network-Based Optical Performance Monitoring for Optical Transport Networks. - Takahito Tanimura; Takeshi Hoshida; Tomoyuki Kato; Shigeki Watanabe; Hiroyuki Morikawa (JOCN, 2019)

Whole Band Wavelength Conversion for Wideband Transmission. - Tomoyuki Kato; Shigeki Watanabe; Tomohiro Yamauchi; Goji Nakagawa; Hidenobu Muranaka; Yu Tanaka; Yuichi Akiyama; Takeshi Hoshida (OFC, 2021)