Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1-2 |
| Number of pages | 2 |
| Volume | 2017-January |
| ISBN (Electronic) | 9781509062904 |
| DOIs | |
| Publication status | Published - 2017 Nov 22 |
| Event | 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 - Singapore, Singapore Duration: 2017 Jul 31 → 2017 Aug 4 |
Other
| Other | 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 |
|---|---|
| Country | Singapore |
| City | Singapore |
| Period | 17/7/31 → 17/8/4 |
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Keywords
- Avalanche multiplication
- Frequency response
- High density quantum dot
- Photodetector
ASJC Scopus subject areas
- Computer Networks and Communications
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
Cite this
Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications. / Umezawa, Toshimasa; Akahane, Kouichi; Matsumoto, Atsushi; Yamamoto, Naokatsu; Kawanishi, Tetsuya.
2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. p. 1-2.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
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
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
VL - 2017-January
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.
ER -