Akira WADA


PDL Suppression on Long-Period Fiber Gratings by Azimuthally Isotropic Exposure
Yuu ISHII Kensuke SHIMA Satoshi OKUDE Kenji NISHIDE Akira WADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/04/01
Vol. E85-C  No. 4  pp. 934-939
Type of Manuscript:  Special Section PAPER (Special Issue on Optical Fibers and Devices)
Category: 
Keyword: 
long-period fiber gratingpolarization-dependent loss (PDL)birefringencepolarization mode dispersion (PMD)
 Summary | Full Text:PDF(1.2MB)

Novel Gain-Slope Free Erbium-Doped Fiber Amplifier for L-Band Using Thulium-Doped Fiber
Tomoharu KITABAYASHI Tetsuya SAKAI Akira WADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/04/01
Vol. E85-C  No. 4  pp. 940-944
Type of Manuscript:  Special Section PAPER (Special Issue on Optical Fibers and Devices)
Category: 
Keyword: 
gain-tiltgain equalizationEDFAWDM system
 Summary | Full Text:PDF(493KB)

Active Gain-Slope Compensation of EDFA Using Thulium-Doped Fiber as Saturable Absorber
Tomoharu KITABAYASHI Takuya AIZAWA Tetsuya SAKAI Akira WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/05/01
Vol. E84-B  No. 5  pp. 1231-1235
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Fibers and Cables
Keyword: 
gain-tiltgain equalizationEDFAWDM system
 Summary | Full Text:PDF(239.2KB)

Active Gain-Slope Compensation of EDFA Using Thulium-Doped Fiber as Saturable Absorber
Tomoharu KITABAYASHI Takuya AIZAWA Tetsuya SAKAI Akira WADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/05/01
Vol. E84-C  No. 5  pp. 605-609
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Fibers and Cables
Keyword: 
gain-tiltgain equalizationEDFAWDM system
 Summary | Full Text:PDF(239.9KB)

Characteristics of Long-Period Fiber Grating Utilizing Periodic Stress Relaxation
Shigefumi YAMASAKI Masaaki AKIYAMA Kenji NISHIDE Akira WADA Ryozo YAMAUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2000/03/25
Vol. E83-C  No. 3  pp. 440-443
Type of Manuscript:  Special Section PAPER (Special Issue on Optical Fiber Sensors)
Category: Passive and Active Devices for Photonic Sensing
Keyword: 
long-period fiber gratinghigh-silica core fiberCO2 laser
 Summary | Full Text:PDF(56KB)

A Novel Chirped Fiber Bragg Grating Utilizing Thermal Diffusion of Core Dopant
Satoshi OKUDE Tetsuya SAKAI Masaaki SUDOH Akira WADA Ryozo YAMAUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/04/25
Vol. E80-B  No. 4  pp. 551-556
Type of Manuscript:  Special Section PAPER (Special Issue on Optical Fibers and Their Applications)
Category: 
Keyword: 
photo-refractive index changefiber gratingoptical filterthermal diffusion
 Summary | Full Text:PDF(537.3KB)

Suppression of Stimulated Brillouin Scattering by Intentionally Induced Periodical Residual-Strain in Single-Mode Optical Fibers
Akira WADA Tetsuo NOZAWA Tak-On TSUN Ryozo YAMAUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/04/25
Vol. E76-B  No. 4  pp. 345-351
Type of Manuscript:  Special Section PAPER (Special Issue on Optical Fiber Cables and Related Technologies)
Category: 
Keyword: 
optical fiberstimulated Brillouin scattering (SBS)brillouin thresholdresidual strain
 Summary | Full Text:PDF(528.2KB)