Fumihiko ITO


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)

Distortion Free Reconstruction through Phase Conjugation of Holographic Image in Photorefractive Crystal Waveguide
Fumihiko ITO Ken-ichi KITAYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1992/06/25
Vol. E75-C  No. 6  pp. 741-743
Type of Manuscript:  LETTER
Category: Opto-Electronics
Keyword: 
photorefracive crystalsholographic memoriesphase conjugation mirror
 Summary | Full Text:PDF(300.8KB)

0.5 mm Coated Optical Fibers Design Using Polyetherimido
Fumihiko ITO Tsuneo KUWABARA Hiroaki KOGA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/10/25
Vol. E71-E  No. 10  pp. 987-991
Type of Manuscript:  PAPER
Category: Communication Cable and Wave Guides
Keyword: 
 Summary | Full Text:PDF(352.9KB)

Semiconductor Waveguides with High Coupling Efficiency for Single-Mode Optical Fibers
Hiroshi NAKAMOTO Masaaki MATSUURA Fumihiko ITO Tadatoshi TANIFUJI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/04/25
Vol. E70-E  No. 4  pp. 264-266
Type of Manuscript:  Special Section LETTER (Special Issue: Papers from 1987 National Convention IEICE)
Category: Optoelectronics
Keyword: 
 Summary | Full Text:PDF(188.1KB)

Wavelength Bandwidth of Plasma Dispersion Effect Total Reflection Type Optical Switches
Fumihiko ITO Tadatoshi TANIFUJI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/04/25
Vol. E70-E  No. 4  pp. 269-271
Type of Manuscript:  Special Section LETTER (Special Issue: Papers from 1987 National Convention IEICE)
Category: Optoelectronics
Keyword: 
 Summary | Full Text:PDF(180.8KB)