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IEICE Trans

Isao MOROHASHI

Optical Phase Control with Backward-Pilot Feedback for Photomixing-Based Terahertz Wave Generation
Amalina Athira IBRAHIM Isao MOROHASHI Norihiko SEKINE 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2026/08/01
Vol. E109-C  No. 8  pp. 289-292
Type of Manuscript:  BRIEF PAPER
Category: 
Keyword: 
photomixing, terahertz, phase stabilization, interferometry, feedback control, 
 Summary | Full Text:PDF
Generation of Arbitrarily Patterned Pulse Trains in the THz Range by Spectral Synthesis of Optical Combs
Isao MOROHASHI Takahide SAKAMOTO Norihiko SEKINE Tetsuya KAWANISHI Akifumi KASAMATSU Iwao HOSAKO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/08/01
Vol. E98-C  No. 8  pp. 793-798
Type of Manuscript:  Special Section PAPER (Special Section on Microwave Photonics)
Category: MWP Subsystem
Keyword: 
optical comb, Mach-Zehnder modulator, terahertz, ultra-wideband, 
 Summary | Full Text:PDF
Generation of Millimeter Waves with Fine Frequency Tunability Using Mach-Zehnder-Modulator-Based Flat Comb Generator
Isao MOROHASHI Yoshihisa IRIMAJIRI Takahide SAKAMOTO Tetsuya KAWANISHI Motoaki YASUI Iwao HOSAKO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/02/01
Vol. E96-C  No. 2  pp. 192-196
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Photonics Technology)
Category: 
Keyword: 
Mach-Zehnder modulator, optical comb, millimeter wave, terahertz wave, photomixing, 
 Summary | Full Text:PDF
Synthesis of 16 Quadrature Amplitude Modulation Using Polarization-Multiplexing QPSK Modulator
Isao MOROHASHI Takahide SAKAMOTO Masaaki SUDO Atsushi KANNO Akito CHIBA Junichiro ICHIKAWA Tetsuya KAWANISHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/07/01
Vol. E94-B  No. 7  pp. 1809-1814
Type of Manuscript:  Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
modulation format electro-optic vector digital-to-analog converter, quadrature amplitude modulation, quad-parallel Mach-Zehnder modulator, polarization multiplexing, 
 Summary | Full Text:PDF