Waveguide Avalanche Photodetector using Quantum-Dot Superlattice for Optical Fiber Communications

被引：0
|
作者：
Umezawa, Toshimasa [1 ]
Akahane, Kouichi [1 ]
Matsumoto, Atsushi [1 ]
Yamamoto, Naokatsu [1 ]
Kawanishi, Tetsuya [1 ,2 ]
机构：
[1] Natl Inst Informat & Commun Technol NICT, Tokyo, Japan
[2] Waseda Univ, Tokyo, Japan
来源：
2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR) | 2017年
关键词：
High density quantum dot; Photodetector; Avalanche multiplication; Frequency response;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We report a 1.5-mu m 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.
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页数：2
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