Kentaro Ichii

2-LP mode few-mode fiber amplifier employing ring-core erbium-doped fiber

Hirotaka Ono, Tsukasa Hosokawa, Kentaro Ichii et al. · Optics Express · 2015 · 55 citations · Full text

Engineering, Electrical Engineering, Analog Electronics +13

Improvement of differential modal gain in few‐mode fibre amplifier by employing ring‐core erbium‐doped fibre

Hirotaka Ono, Tsukasa Hosokawa, Kentaro Ichii et al. · Electronics Letters · 2015 · 42 citations · Full text

Engineering, Electrical Engineering, Electronic Materials +11

12-Core Double-Clad Er/Yb-Doped Fiber Amplifier Employing Free-space Coupling Pump/Signal Combiner Module

Hirotaka Ono, Kentaro Ichii, H. Masuda et al. · 2013 · 38 citations

Engineering, Electrical Engineering, Materials Science +14

Gamma-radiation-induced photodarkening in ytterbium-doped silica glasses

T. Arai, Kentaro Ichii, Shoji Tanigawa et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2011 · 35 citations

Natural Sciences, Materials Science, Physics +17

Effects of Ge Co-Doping on P-Related Radiation-Induced Absorption in Er/Yb-Doped Optical Fibers for Space Applications

Yuta Kobayashi, Edson H. Sekiya, Kazuya Saito et al. · Journal of Lightwave Technology · 2018 · 27 citations · Full text

Natural Sciences, Materials Engineering, Materials Science +17