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

Fuchuan Lei, Bo Peng, Sahin Ozdemir, Gui Lu Long, Lan Yang

Research output: Contribution to journalArticlepeer-review

53 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 languageEnglish (US)
Article number101112
JournalApplied Physics Letters
Volume105
Issue number10
DOIs
StatePublished - Sep 8 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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