Delay of light in an optical bottle resonator with nanoscale radius variation: dispersionless, broadband, and low-loss

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Abstract

It is shown theoretically that an optical bottle resonator with a nanoscale radius variation can perform a multinanosecond long dispersionless delay of light in a nanometer-order bandwidth with minimal losses. Experimentally, a 3 mm long resonator with a 2.8 nm deep semiparabolic radius variation is fabricated from a 19??µm radius silica fiber with a subangstrom precision. In excellent agreement with theory, the resonator exhibits the impedance-matched 2.58 ns (3 bytes) delay of 100 ps pulses with 0.44??dB/ns intrinsic loss. This is a miniature slow light delay line with the record large delay time, record small transmission loss, dispersion, and effective speed of light.

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Original languageEnglish
Article number163901
Number of pages5
JournalPhysical Review Letters
Volume111
Issue number16
DOIs
Publication statusPublished - 17 Oct 2013

Bibliographic note

© 2013 American Physical Society. Delay of Light in an Optical Bottle Resonator with Nanoscale Radius Variation: Dispersionless, Broadband, and Low Loss. M. Sumetsky. Phys. Rev. Lett. 111, 163901 – Published 17 October 2013

    Keywords

  • optical bottle resonator , miniature slow light delay line

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