Enhancing the impedance matched bandwidth of bottle microresonator signal processing devices

Abstract

Light pulses entering an elongated bottle microresonator (BMR) from a transversely oriented input–output waveguide (microfiber) slowly propagate along the BMR length and bounce between turning points at its constricting edges. To avoid insertion losses and processing errors, a pulse should completely transfer from the waveguide into the BMR and, after being processed, completely return back into the waveguide. For this purpose, the waveguide and BMR should be impedance matched along the pulse bandwidth. Here we show how to enhance the impedance matched bandwidth by optimization of the BMR effective radius variation in a small vicinity of the input–output waveguide.

Publication DOI: https://doi.org/10.1364/OL.430673
Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology
College of Engineering & Physical Sciences > Electrical, Electronic & Power Engineering
Additional Information: Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funding: Engineering and Physical Sciences Research Council (EP/P006183/1).
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Full Text Link:
Related URLs: https://www.osa ... -3227&id=452846 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2021-06-28
Published Online Date: 2021-06-04
Accepted Date: 2021-06-04
Authors: Sumetsky, M. (ORCID Profile 0000-0001-7289-3547)
Zaki, S.

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