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Proceedings Paper

Coherent THz wave combiner composed of arrayed uni-traveling carrier photodiodes and planar lightwave circuit
Author(s): K. Sakuma; J. Haruki; G. Sakano; K. Kato; S. Hisatake; T. Nagatsuma
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Paper Abstract

For high-power THz wave generation by photomixing of two lightwaves, we proposed the synchronous power combiner which consists of eight-arrayed photomixers/antennas and the THz phase control system. We experimentally confirmed the effectiveness of the power combination by synchronizing the phases of the THz wave by the mechanical optical delay lines and also demonstrated the same functionality at the lightwave-circuit-based optical phase control system. We found that the directional gain is increasing with increasing the number of photomixers from two to three and it reached up to 4.5 dB.

Paper Details

Date Published: 25 February 2016
PDF: 6 pages
Proc. SPIE 9747, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX, 97471O (25 February 2016); doi: 10.1117/12.2212017
Show Author Affiliations
K. Sakuma, Kyushu Univ. (Japan)
J. Haruki, Kyushu Univ. (Japan)
G. Sakano, Kyushu Univ. (Japan)
K. Kato, Kyushu Univ. (Japan)
S. Hisatake, Osaka Univ. (Japan)
T. Nagatsuma, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 9747:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX
Laurence P. Sadwick; Tianxin Yang, Editor(s)

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