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

Fuchuan Lei; Bo Peng; Şahin Kaya Özdemir; Gui Lu Long; Lan Yang

doi:10.1063/1.4895632

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

Fuchuan Lei, Bo Peng, Şahin Kaya Özdemir, Gui Lu Long, Lan Yang

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8 Scopus citations

Abstract

We report Fano-like asymmetric resonances modulated by optical gain in a whispering-gallery-mode 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.

Original language	English
Article number	101112
Journal	Applied Physics Letters
Volume	105
Issue number	10
DOIs	https://doi.org/10.1063/1.4895632
State	Published - Sep 8 2014

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abstract = "We report Fano-like asymmetric resonances modulated by optical gain in a whispering-gallery-mode 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.",

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AU - Yang, Lan

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AB - We report Fano-like asymmetric resonances modulated by optical gain in a whispering-gallery-mode 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.

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

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