TY - GEN
T1 - Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications
AU - Umezawa, Toshimasa
AU - Akahane, Kouichi
AU - Matsumoto, Atsushi
AU - Yamamoto, Naokatsu
AU - Kawanishi, Tetsuya
N1 - Funding Information:
This study was conducted as a part of a research project supported by the Japanese Government funding for “R&D to Expand Radio Frequency Resources” by the Ministry of Internal Affairs and Communications. This work was partially supported by the MIC/SCOPE #165003010.
Publisher Copyright:
© 2018 Optics InfoBase Conference Papers. All rights reserved.
PY - 2017
Y1 - 2017
N2 - We report a 1.5-μm high-responsivity waveguide quantum dot photodetector with an avalanche multiplication effect and high frequency response. With two different QD layer conditions, the responsivity and avalanche multiplication were compared and discussed. The high responsivity of 0.58 A/W and avalanche multiplication factor of around 10 could be obtained. Then, it was inferred that the impact ionization process in the quantum dot superlattice would be created in the depletion layer region, not in the InGaAlAs SL region.
AB - We report a 1.5-μm high-responsivity waveguide quantum dot photodetector with an avalanche multiplication effect and high frequency response. With two different QD layer conditions, the responsivity and avalanche multiplication were compared and discussed. The high responsivity of 0.58 A/W and avalanche multiplication factor of around 10 could be obtained. Then, it was inferred that the impact ionization process in the quantum dot superlattice would be created in the depletion layer region, not in the InGaAlAs SL region.
KW - Avalanche multiplication
KW - Frequency response
KW - High density quantum dot
KW - Photodetector
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M3 - Conference contribution
AN - SCOPUS:85059522356
SN - 9781509062904
T3 - Optics InfoBase Conference Papers
BT - Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
PB - OSA - The Optical Society
T2 - Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
Y2 - 31 July 2017 through 4 August 2017
ER -