Kiyotomo Hasegawa

According to our database, Kiyotomo Hasegawa authored at least 10 papers between 2014 and 2026.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

2026

High-Speed EMLs for AI/ML Applications.

Nobuo Ohata, Mizuki Shirao, Shinya Okuda, Kei Masuyama, Asami Uchiyama, Kenichi Abe, Kiyotomo Hasegawa

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2026

2025

Demonstration of ±0.5 GHz Lasing Frequency Stability of DFB-CAN with One-Chip Wavelength Monitor and Evaluation of 16QAM 40-km Fiber Transmission.

Junichi Suzuki, Kiyotomo Hasegawa, Hiroshi Miura, Kei Masuyama, Nobuo Ohata

Proceedings of the European Conference on Optical Communications, 2025

2024

Single Wavelength Laser TO-CAN Integrated with One-Chip Wavelength Locker.

Junichi Suzuki, Kiyotomo Hasegawa, Kei Masuyama, Nobuo Ohata

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024

2022

Si Photonics-Based Compact Wavelength Locker for Small Tunable Laser Modules with Low Power Consumption.

Junichi Suzuki, Kiyotomo Hasegawa, Nobuo Ohata

Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022

2020

A Cost Effective Hermetically Sealed 106 Gbit/s PAM4 EML TO-CAN For Beyond-5G Mobile Fronthaul.

Ryota Fujihara, Mizuki Shirao, Seiki Nakamura, Seiji Nakano, Kiyotomo Hasegawa

Proceedings of the European Conference on Optical Communications, 2020

2019

Wider Temperature Operation of EML in Miniaturized TOSA Package for 53 GBaud PAM-4.

Mizuki Shirao, Yoshimichi Morita, Kiyotomo Hasegawa

Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

Grid Free WDM System Using External Cavity Multi-Wavelength Laser.

Kei Masuyama, Mizuki Shirao, Nobuhiko Nishiyama, Kiyotomo Hasegawa

Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

An integrated LAN-WDM 400-Gb/s (53Gbaud-PAM4) EML TOSA.

Yosuke Kawamoto, Nobuo Ohata, Tadashi Murao, Hayato Sano, Masashi Binkai, Yudai Imai, Tatsuo Hatta, Kiyotomo Hasegawa

Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

Compact InP MZM Optical Sub-Assembly with Built-in Electrical Filters by Three-Dimensional Packaging Technique.

Fukiko Hirose, Keita Mochizuki, Junichi Suzuki, Shusaku Hayashi, Yosuke Suzuki, Kiyotomo Hasegawa

Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

2014

A study of laser white and brownian FM Noise in coherent QPSK signals.

Keisuke Matsuda, Hiroshi Bessho, Kiyotomo Hasegawa, Tsuyoshi Yoshida, Kazuyuki Ishida

Proceedings of the Optical Fiber Communications Conference and Exhibition, 2014