Cai, Ming and Painter, Oskar and Vahala, Kerry J. (2000) Observation of Critical Coupling in a Fiber Taper to a Silica-Microsphere Whispering-Gallery Mode System. Physical Review Letters, 85 (1). pp. 74-77. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:CAIprl00
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Abstract
We present the observation of critical coupling in a high-Q fused-silica microsphere whispering-gallery mode resonator coupled to a fiber taper. Extremely efficient and controlled power transfer to high-Q (∼10^7) resonators has been demonstrated. Off-resonance scattering loss was measured to be less than 0.3%. On-resonance extinction in transmitted optical power through the fiber coupler was measured as high as 26 dB at the critical coupling point. This result opens up a range of new applications in fields as diverse as near-field sensing and quantum optics.
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| Additional Information: | © 2000 The American Physical Society. Received 17 December 1999. This work was supported by DARPA and the Office of Naval Research. K.J.V. thanks A. Yariv for helpful discussions. | ||||||
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| Issue or Number: | 1 | ||||||
| Record Number: | CaltechAUTHORS:CAIprl00 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:CAIprl00 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 2012 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Archive Administrator | ||||||
| Deposited On: | 02 Mar 2006 | ||||||
| Last Modified: | 02 Oct 2019 22:49 |
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