An Evaluation Technique Using Network Voronoi Diagram for Balanced Optical Network Design. - Masayuki Minoura; Norihiko Shinomiya; Kazuyuki Tajima; Takuya Miyashita; Motoyoshi Sekiya (AINA Workshops, 2010)

Iteration-free node-disjoint paths search in WDM networks with asymmetric nodes. - Tomohiro Hashiguchi; Yi Zhu 005; Kazuyuki Tajima; Yutaka Takita; Takao Naito; Jason P. Jue (ONDM, 2012)

Designs of OTN-level shared mesh restoration in WDM networks. - Tomohiro Hashiguchi; Yutaka Takita; Kazuyuki Tajima; Takao Naito (DRCN, 2013)

Grooming Index for OTN/WDM networks. - Yutaka Takita; Tomohiro Hashiguchi; Kazuyuki Tajima; Takao Naito (OFC/NFOEC, 2013)

Network reconfiguration targeting minimum connection disruption. - Yutaka Takita; Tomohiro Hashiguchi; Kazuyuki Tajima; Toru Katagiri; Takao Naito; Qiong Zhang; Xi Wang 001; Inwoong Kim; Paparao Palacharla; Motoyoshi Sekiya (ONDM, 2014)

Cost-efficient multi-layer network design employing traffic re-aggregation and shared protection across layers. - Tomohiro Hashiguchi; Yutaka Takita; Kazuyuki Tajima; Toru Katagiri (DRCN, 2015)

Agile network re-optimization supporting seamless service migration. - Yutaka Takita; Tomohiro Hashiguchi; Kazuyuki Tajima; Toru Katagiri; Takao Naito; Qiong Zhang; Xi Wang 001; Inwoong Kim; Paparao Palacharla; Motoyoshi Sekiya (OFC, 2015)

Impact of adaptive modulation on cost efficient traffic grooming in elastic optical networks. - Yutaka Takita; Kazuyuki Tajima; Tomohiro Hashiguchi; Toru Katagiri; Takao Naito (OFC, 2015)

Wavelength defragmentation with minimum optical path disruptions for seamless service migration. - Yutaka Takita; Kazuyuki Tajima; Tomohiro Hashiguchi; Toru Katagiri (OFC, 2016)

Cost-Efficient Traffic Aggregation Employing Cross-Layer Shared Protection. - Tomohiro Hashiguchi; Yutaka Takita; Kazuyuki Tajima; Toru Katagiri (J. Netw. Syst. Manag., 2016)

Lensless light-field imaging with multi-phased fresnel zone aperture. - Kazuyuki Tajima; Takeshi Shimano; Yusuke Nakamura; Mayu Sao; Taku Hoshizawa (ICCP, 2017)

Techniques for agile network re-optimization following traffic fluctuations. - Tomohiro Hashiguchi; Kazuyuki Tajima; Yutaka Takita; Toru Katagiri (OFC, 2017)

Wavelength Defragmentation for Seamless Service Migration. - Yutaka Takita; Kazuyuki Tajima; Tomohiro Hashiguchi; Toru Katagiri (JOCN, 2017)

Towards seamless service migration in network re-optimization for optically interconnected datacenters. - Yutaka Takita; Tomohiro Hashiguchi; Kazuyuki Tajima; Toru Katagiri; Takao Naito; Qiong Zhang; Xi Wang 001; Inwoong Kim; Paparao Palacharla; Motoyoshi Sekiya (Opt. Switch. Netw., 2017)

Demonstration of Automatic Connection Pair Discovery and Path Setting in Filter-less Point-to-Point WDM Systems. - Yutaka Takita; Masatake Miyabe; Kazuyuki Tajima; Hiroshi Tomonaga; Takeshi Hoshida (OFC, 2018)

Advanced Data-Analytics-Based Fiber-Longitudinal Monitoring for Optical Transport Networks. - Takahito Tanimura; Setsuo Yoshida; Shoichiro Oda; Kazuyuki Tajima; Takeshi Hoshida (ECOC, 2020)

Resolution Improvement In FZA Lens-Less Camera By Synthesizing Images Captured With Different Mask-Sensor Distances. - Xiao Chen; Tomoya Nakamura; Xiuxi Pan; Kazuyuki Tajima; Keita Yamaguchi; Takeshi Shimano; Masahiro Yamaguchi (ICIP, 2021)

Concept and implementation study of advanced DSP-based fiber-longitudinal optical power profile monitoring toward optical network tomography [Invited]. - Takahito Tanimura; Setsuo Yoshida; Kazuyuki Tajima; Shoichiro Oda; Takeshi Hoshida (JOCN, 2021)

Location-resolved PDL Monitoring with Rx-side Digital Signal Processing in Multi-span Optical Transmission System. - Motohiko Eto; Kazuyuki Tajima; Setsuo Yoshida; Shoichiro Oda; Takeshi Hoshida (OFC, 2022)

Implementation of Rx-side DSP-based fiber-longitudinal optical power profile monitoring for optical network tomography. - Kyosuke Sone; Motohiko Eto; Kazuyuki Tajima; Setsuo Yoshida; Ichiro Yokokura; Kenichi Kamada; Shoichiro Oda; Takeshi Hoshida (OECC/PSC, 2022)

Optical Network Tomography: Demonstration of Anomaly Loss Monitoring and Fiber-Type Identification. - Ryu Shinzaki; Motohiko Eto; Kazuyuki Tajima; Kyosuke Sone; Setsuo Yoshida; Shoichiro Oda; Inwoong Kim; Olga Vassilieva; Paparao Palacharla; Takeshi Hoshida (OFC, 2023)

Digital Coherent Receiver Based Optical Performance Monitoring Technology and its Application to Photonics Tomography. - Shoichiro Oda; Ryu Shinzaki; Motohiko Eto; Kazuyuki Tajima; Kyosuke Sone; Setsuo Yoshida; Inwoong Kim; Olga Vassilieva; Paparao Palacharla; Takeshi Hoshida (OFC, 2024)

Advanced Multi-Span Signal Monitoring Using Digital Coherent Receivers. - Takeshi Hoshida; Ryu Shinzaki; Motohiko Eto; Kazuyuki Tajima; Kyosuke Sone; Setsuo Yoshida; Naoya Okada; Ichiro Yokokura; Atsushi Kanai; Junichi Sugiyama; Shoichiro Oda; Hisao Nakashima (OFC, 2025)