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Ultrahigh-QTunable Whispering-Gallery-Mode Microresonator

2009/01/31 by M. Pöllinger, Michael Pöllinger, D. O'Shea +4 · 366 citations
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Computer science #Coupling (piping) #Materials science #Mechanical and Optical Resonators #Mode (computer interface) #Mode volume #Optical fiber #Optics #Photonic and Optical Devices #Physics #Q factor #Quality (philosophy) #Quantum mechanics #Resonance (particle physics) #Resonator #Whispering gallery #Whispering-gallery wave #physics.optics

paper · pdf · doi:10.1103/physrevlett.103.053901

published in Physical Review Letters 103(5), 053901 (American Physical Society) · 4 pages, 3 figures

openalex publication_date 2009/07/28 · arxiv created 2010/07/05 · arxiv updated 2010/07/06 · openalex created_date 2019/07/30 · openalex updated_date 2026/08/05

Abstract

Typical microresonators exhibit a large frequency spacing between resonances and a limited tunability. This impedes their use in a large class of applications which require a resonance of the microresonator to coincide with a predetermined frequency. Here, we experimentally overcome this limitation with highly prolate-shaped whispering-gallery-mode "bottle microresonators" fabricated from standard optical glass fibers. Our resonators combine an ultrahigh quality factor of 3.6 x 10(8), a small mode volume, and near-lossless fiber coupling, characteristic of whispering-gallery-mode resonators, with a simple and customizable mode structure enabling full tunability.

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