作者:
Shan, Xiaoting
(Shan, Xiaoting.)
|
Li, Bo
(Li, Bo.)
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Zhao, Fazhan
(Zhao, Fazhan.)
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Wang, Lei
(Wang, Lei.)
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Sun, Yun
(Sun, Yun.)
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Xun, Meng
(Xun, Meng.)
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Liu, Jie
(Liu, Jie.)
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Gao, Jiantou
(Gao, Jiantou.)
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Gu, Rui
(Gu, Rui.)
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Yang, Chengyue
(Yang, Chengyue.)
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Xie, Yiyang
(Xie, Yiyang.)
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Wang, Ju
(Wang, Ju.)
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Wang, Shufeng
(Wang, Shufeng.)
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Han, Zhengsheng
(Han, Zhengsheng.)
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Jingtao zhou
(Jingtao zhou.)
|
Wu, Dexin
(Wu, Dexin.)
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摘要:
We investigate the radiation effects of 1907 MeV Ta ions on the static and dynamic characteristics of 850 nm high-speed vertical cavity surface emitting lasers (VCSELs). The threshold current and slope efficiency are found to be degraded. However, appropriate ion fluence irradiation can improve the modulation bandwidth. The maximum 3 dB frequency is increased to 14.02 GHz from 13 GHz at a fluence of 1 × 108 ions/cm2. The observed behaviour can be explained in terms of reflectivity degradation of lossy distributed-Bragg reflectors as well as the degradation of quantum wells. © 2021 Elsevier B.V.
关键词:
Heavy ions
Radiation effects
Semiconductor quantum wells
Laser pulses
Surface emitting lasers
Quantum well lasers
Reflection
Transceivers
分类号
714.2 Semiconductor Devices and Integrated Circuits - 716.3 Radio Systems and Equipment - 744.1 Lasers, General - 744.7 Laser Components
资助项目类型
This work was supported by the National Natural Science Foundation of China , (Grants 61804175 and 61874135 ), Key Research Program of Frontier Sciences, Chinese Academy of Sciences , (No. ZDBS-LY-JSC031 & ZDBS-LY-JSC015 ), Innovation Center of Radiation Application Project, China Institute of Atomic Energy , (No. KFZC2018040203 ), Institute of Modern Physics Project, Chinese Academy of Sciences , (No. HIR19PY015 ).