Phys. Rev. Lett. 103, 053901 (2009) [4 pages]Ultrahigh-Q Tunable Whispering-Gallery-Mode MicroresonatorReceived 30 January 2009; revised 23 April 2009; published 28 July 2009 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 3.6×108, 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. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.053901
DOI:
10.1103/PhysRevLett.103.053901
PACS:
42.60.Da, 42.50.Pq, 42.79.−e
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.