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IEICE Trans

Yusuke KOSHIKIYA

Simultaneous Measurement of Differential Modal Group Delay in Few-Mode Fibers on the Basis of Optical Time Domain Reflectometer with Delay Lines
Masaki NAKAMORI Atsushi NAKAMURA Masaharu OHASHI Yusuke KOSHIKIYA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2025/03/01
Vol. E108-B  No. 3  pp. 243-249
Type of Manuscript:  PAPER
Category: Optical Fiber for Communications
Keyword: 
mode-division multiplexing, few-mode fiber, differential modal group delay, optical time domain reflectometer, 
 Summary | Full Text:PDF
Branching Ratio Design of Optical Coupler for Cable Re-Routing Operation Support System with No Service Interruption
Hiroshi WATANABE Kazutaka NOTO Yusuke KOSHIKIYA Tetsuya MANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2018/05/01
Vol. E101-B  No. 5  pp. 1191-1196
Type of Manuscript:  PAPER
Category: Fiber-Optic Transmission for Communications
Keyword: 
optical coupler, branching ratio, cable re-routing operation support system, 
 Summary | Full Text:PDF
Newly Developed Optical Fiber Line Testing System Employing Bi-Directional OTDRs for PON and In-Service Line Testing Criteria
Yusuke KOSHIKIYA Noriyuki ARAKI Hisashi IZUMITA Fumihiko ITO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/10/01
Vol. E90-B  No. 10  pp. 2793-2802
Type of Manuscript:  PAPER
Category: Optical Fiber for Communications
Keyword: 
maintenance, optical fiber testing, optical time domain reflectometer, fault location, 
 Summary | Full Text:PDF