Yusuke KOSHIKIYA


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:   
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 couplerbranching ratiocable re-routing operation support system
 Summary | Full Text:PDF(1.6MB)

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: 
maintenanceoptical fiber testingoptical time domain reflectometerfault location
 Summary | Full Text:PDF(2.4MB)