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Optics Express|August 13, 2025
Kerr-lens mode-locked Yb:KLuW thin-disk laserShotaro Kitajima, Norihiko NishizawaScientific Reports|March 27, 2024
206 MHz fully stabilized all-PM dispersion-managed figure-9 fiber laser combShotaro Kitajima, Kwangyn Jung, Norihiko NishizawaOptics Letters|May 23, 2023
Controllable, intense spectral peaking with a spectral filter and optical fiberNorihiko Nishizawa, Sakiko Kobata, Shotaro KitajimaOptics Letters|May 13, 2022
Spectral peaking in an ultrashort-pulse fiber laser oscillator with a molecular gas cellNorihiko Nishizawa, Shotaro Kitajima, Youichi SakakibaraOptics Express|September 15, 2023
Frequency modes filtering of spectral peaks in optical frequency combs through molecular gas absorption and nonlinear polarization rotationKwangyun Jung, Shotaro Kitajima, Norihiko NishizawaOptics Letters|November 15, 2024
Programmable spectral peak generation by a mode-locked Er-fiber laser with an intracavity LCOS-SLM filterShotaro Kitajima, Sakiko Kobata, Norihiko NishizawaOptics Letters|September 14, 2023
Background-reduced spectral peak generation using a nonlinear loop mirror with a gas cellNorihiko Nishizawa, Kwangyun Jung, Shotaro KitajimaOptics Express|August 13, 2025
Coherence-preserved amplification of spectral peaked optical frequency comb using fiber Raman amplifierNorihiko Nishizawa, Yui Ozawa, Shotaro KitajimaOptics Letters|November 4, 2025
Watt-class 1.4 µm all-fiber optical frequency comb system based on Er-doped fiber laser and fiber Raman amplifierShotaro Kitajima, Sota Sakaguchi, Yui Ozawa, et al.Scientific Reports|May 25, 2026
Freely controllable single-optical-frequency comb for highly sensitive cavity ring-down spectroscopyNorihiko Nishizawa, Shotaro Kitajima, Ningwu Liu, et al.Pageof 5