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.
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.
PY - 2017/11/22
Y1 - 2017/11/22
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
UR - http://www.scopus.com/inward/record.url?scp=85044326929&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85044326929&partnerID=8YFLogxK
U2 - 10.1109/CLEOPR.2017.8118602
DO - 10.1109/CLEOPR.2017.8118602
M3 - Conference contribution
AN - SCOPUS:85044326929
T3 - 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
SP - 1
EP - 2
BT - 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
Y2 - 31 July 2017 through 4 August 2017
ER -