TY - GEN
T1 - Proposal of THz phase control system utilizing chromatic dispersion at optical device and its feasibility demonstration
AU - Yamanaka, Yusuke
AU - Kuboki, Takeshi
AU - Kato, Kazutoshi
N1 - Funding Information:
Fig. 5 The measured (solid) and approximated quadratic (dashed) curve of phase change. V. CONCLUSION We proposed a novel THz-wave phase control system utilizing chromatic dispersion at an optical device. We testified the feasibility of the semiconductor phase modulator as the waveguide device by using our devised MZI intensity modulation technique. From the measured change of the chromatic dispersion with reverse bias voltage, we expected that the semiconductor phase modulator could realize the full-range phase control of THz wave. ACKNOWLEDGMENT A part of this work was supported by the Collaborative Research Based on Industrial Demand/JST, the Strategic Information and Communications R&D Promotion Programme (SCOPE) 2015, from the Ministry of Internal Affairs and Communications, Japan, and JST CREST Grant Number JPMJCR1431. The authors thank NTT Device Technology Laboratories for their experimental support. REFERENCES [1] J. Haruki, et al. “First demonstration of 300-GHz band wireless data transmission with arrayed photomixers”, MOC '16, 13A-6, Oct. 2016. [2] K. Ajito, et al “THz Chemical Imaging for Biological Applications”, IEEE Trans. Terahertz Sci. Technol., VOL. 1, NO. 1, Sep. 2011. [3] H. Ito, et al. “High-Speed and High-Output InP–InGaAs Unitraveling-Carrier Photodiodes”, IEEE J. Sel. Top. Quantum Electron., VOL. 10, NO. 4, Jul/Aug. 2004. [4] K. Sakuma, et al. “Coherent THz wave combiner composed of arrayed-uni-traveling carrier photodiodes and planar lightwave circuit” SPIE Photonics West 2016, 9747-59, Feb. 2016.
Publisher Copyright:
© 2017 IEEE.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2017/11/17
Y1 - 2017/11/17
N2 - We propose a novel THz wave phase control system consisting of an optical device whose chromatic dispersion changes the phase difference between two lightwaves for photomixing. Our devised Mach-Zehnder modulation technique reveals the feasibility of full-range THz wave phase control with the semiconductor phase modulator.
AB - We propose a novel THz wave phase control system consisting of an optical device whose chromatic dispersion changes the phase difference between two lightwaves for photomixing. Our devised Mach-Zehnder modulation technique reveals the feasibility of full-range THz wave phase control with the semiconductor phase modulator.
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U2 - 10.1109/OECC.2017.8114812
DO - 10.1109/OECC.2017.8114812
M3 - Conference contribution
AN - SCOPUS:85048233353
T3 - 2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
SP - 1
EP - 2
BT - 2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 Opto-Electronics and Communications Conference, OECC 2017 and Photonics Global Conference, PGC 2017
Y2 - 31 July 2017 through 4 August 2017
ER -