Dynamic Fano-like resonances in erbium-doped whispering-gallery-mode microresonators

被引：64
|
作者：
Lei, Fuchuan [1 ,2 ,3 ]
Peng, Bo [3 ]
Oezdemir, Sahin Kaya [3 ]
Long, Gui Lu [1 ,2 ]
Yang, Lan [3 ]
机构：
[1] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[3] Washington Univ, Dept Elect & Syst Engn, St Louis, MO 63130 USA
来源：
APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 10期
基金：
中国国家自然科学基金;
关键词：
MICROCAVITIES; MICROLASERS; RESONATORS; CAVITY; CHIP;
D O I：
10.1063/1.4895632
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report Fano-like asymmetric resonances modulated by optical gain in a whispering-gallerymode resonator fabricated from erbium-doped silica. A time-dependent gain profile leads to dynamically varying sharp asymmetric resonances with features similar to Fano resonances. Depending on the scan speed of the frequency of the probe laser and the pump-probe power ratio, transmission spectra of the active microcavity exhibit a resonance dip, a resonance peak, or a Fano-like resonance. (C) 2014 AIP Publishing LLC.
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页数：4
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