Katsuhiro TAKENAGA


Yb-Doped and Hybrid-Structured Solid Photonic Bandgap Fibers and Linearly-Polarized Fiber Lasers Oscillating above 1160 nm
Masahiro KASHIWAGI Katsuhiro TAKENAGA Kentaro ICHII Tomoharu KITABAYASHI Shoji TANIGAWA Kensuke SHIMA Shoichiro MATSUO Munehisa FUJIMAKI Kuniharu HIMENO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/07/01
Vol. E94-C  No. 7  pp. 1145-1152
Type of Manuscript:  INVITED PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
fiber laserYb-doped fiberphotonic bandgap fiberfrequency-doubling
 Summary | Full Text:PDF(1.8MB)

An Investigation on Crosstalk in Multi-Core Fibers by Introducing Random Fluctuation along Longitudinal Direction
Katsuhiro TAKENAGA Yoko ARAKAWA Shoji TANIGAWA Ning GUAN Shoichiro MATSUO Kunimasa SAITOH Masanori KOSHIBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 409-416
Type of Manuscript:  Special Section PAPER (Special Section on Extremely Advanced Optical Transmission Technologies and Transmission Optical Fiber Technologies towards Exabit Era)
Category: 
Keyword: 
multi-core fibercrosstalkcoupled-mode theorycoupled-power theory
 Summary | Full Text:PDF(1.2MB)

Holey Fibers for Low Bending Loss
Ning GUAN Katsuaki IZOE Katsuhiro TAKENAGA Ryuji SUZUKI Kazuhiko AIKAWA Kuniharu HIMENO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/02/01
Vol. E89-C  No. 2  pp. 191-196
Type of Manuscript:  PAPER
Category: Optoelectronics
Keyword: 
holey fiberbending lossFTTH
 Summary | Full Text:PDF(1.2MB)