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 |
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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 |
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Country | Singapore |
City | Singapore |
Period | 17/7/31 → 17/8/4 |
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