Masaharu OHASHI


Simple Model for Estimating Birefringence of LPFG Using Photoelastic Effect
Tetsuro YABU Hidenori TANAKA Masaharu OHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/06/01
Vol. E92-C  No. 6  pp. 887-889
Type of Manuscript:  BRIEF PAPER
Category: Optoelectronics
Keyword: 
optical fiber cablesphotoelasticitygratingsbirefringencepolarization
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4-Branch Power Splitters Designed by Ideal Field Method
Tetsuro YABU Masahiro GESHIRO Masaharu OHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/01/01
Vol. E92-C  No. 1  pp. 55-62
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and its Application)
Category: 
Keyword: 
optical waveguidefour-branchwaveguide designideal field method
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A Dual-Band Comb-Line Filter Using a Half-Wavelength Stripline Nesting a Quarter-Wavelength Coplanar Waveguide Resonator
Shoichi KITAZAWA Masahiro GESHIRO Kenta ISHIMARU Masaharu OHASHI Hideaki FUJIMOTO Kouji WADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/09/01
Vol. E90-B  No. 9  pp. 2439-2446
Type of Manuscript:  Special Section PAPER (Special Section on 2006 International Symposium on Antennas and Propagation)
Category: Electromagnetics
Keyword: 
dual bandband pass filterresonator
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A Multilayer Single-Input/Single-Output Dual-Band Filter Fabricated in a High Permittivity LTCC Substrate
Shoichi KITAZAWA Hideyuki MIYAKE Masahiro GESHIRO Masaharu OHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/04/01
Vol. E89-C  No. 4  pp. 509-516
Type of Manuscript:  Special Section PAPER (Special Section on Advanced RF Technologies for Compact Wireless Equipment and Mobile Phones)
Category: 
Keyword: 
dual bandband pass filtermatchingLTCC
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FOREWORD
Masaharu OHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/04/01
Vol. E85-C  No. 4  pp. 867-867
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
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Design Considerations for Inverse Dispersion Fiber
Kazuhide NAKAJIMA Masaharu OHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/04/01
Vol. E85-C  No. 4  pp. 896-902
Type of Manuscript:  Special Section PAPER (Special Issue on Optical Fibers and Devices)
Category: 
Keyword: 
chromatic dispersionoptical fiberdispersion compensationdense wavelength division multiplexing (DWDM)
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Conditions for Measuring Nonlinear Refractive Index n2 by SPM Based cw Dual-Frequency Method
Kazuhide NAKAJIMA Takuya OMAE Masaharu OHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/12/01
Vol. E84-B  No. 12  pp. 3278-3280
Type of Manuscript:  LETTER
Category: Optical Fiber
Keyword: 
nonlinear refractive indexself-phase modulationsingle-mode fiberchromatic dispersion
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Model for Estimating Bending Loss in the 1.5 µm Wavelength Region
Kyozo TSUJIKAWA Masaharu OHASHI Osamu KAWATA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/07/25
Vol. E80-C  No. 7  pp. 1067-1069
Type of Manuscript:  LETTER
Category: Opto-Electronics
Keyword: 
bending lossbending loss ratio1.3 µm zero-dispersion single-mode fibers1.5 µm wavelength regionmode field diametercutoff wavelength
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Dispersion Estimation of Axially Nonuniform Single-Mode Fibers
Masaharu OHASHI Nobuo KUWAKI Makoto TSUBOKAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/08/25
Vol. E73-E  No. 8  pp. 1329-1331
Type of Manuscript:  LETTER
Category: Electro-Optics
Keyword: 
 Summary | Full Text:PDF(161.6KB)

Dispersion-Modified Single-Mode Fiber by VAD Method
Masaharu OHASHI Nobuo KUWAKI Yutaka SASAKI Fumihiro ASHIYA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/04/25
Vol. E73-E  No. 4  pp. 571-576
Type of Manuscript:  PAPER
Category: Electro-Optics
Keyword: 
 Summary | Full Text:PDF(486.9KB)

A 10 Gbit/s Long-Span Fiber Transmission Experiment Employing Optical Amplification Technique and Monolithic IC Technology
Kazuo HAGIMOTO Yuuzou MIYAGAWA Yutaka MIYAMOTO Masaharu OHASHI Masanobu OHHATA Kazuo AIDA Kiyoshi NAKAGAWA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/01/25
Vol. E73-E  No. 1  pp. 27-30
Type of Manuscript:  Special Section PAPER (Special Issue on International Conference on Integrated Optics and Optical Fiber Communication)
Category: Optical Communication Systems and Applications
Keyword: 
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Increase of Model Birefringence by Al2O3・SiO2 Stress-Applying Parts in Polarization-Maintaining Fibers
Katsusuke TAJIMA Masaharu OHASHI Yutaka SASAKI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/01/25
Vol. E73-E  No. 1  pp. 135-137
Type of Manuscript:  LETTER
Category: Quantum Electronics
Keyword: 
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Dispersion and Bending Loss Sensitivities of W-Type Dispersion-Modified Single-Mode Fibers
Nobuo KUWAKI Masaharu OHASHI Naoshi UESUGI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1988/10/25
Vol. E71-E  No. 10  pp. 1000-1005
Type of Manuscript:  PAPER
Category: Electro-Optics
Keyword: 
 Summary | Full Text:PDF(445.6KB)