Published June 25, 2004
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Ultralow Loss, High Q, Four Port Resonant Couplers for Quantum Optics and Photonics
- Creators
- Rokhsari, H.
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Vahala, K. J.
Chicago
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Abstract
We demonstrate a low-loss, optical four port resonant coupler (add-drop geometry), using ultrahigh Q (>108) toroidal microcavities. Different regimes of operation are investigated by variation of coupling between resonator and fiber taper waveguides. As a result, waveguide-to-waveguide power transfer efficiency of 93% (0.3 dB loss) and nonresonant insertion loss of 0.02% (<0.001 dB) for narrow bandwidth (57 MHz) four port couplers are achieved in this work. The combination of low-loss, fiber compatibility, and wafer-scale design would be suitable for a variety of applications ranging from quantum optics to photonic networks.
Additional Information
©2004 The American Physical Society (Received 2 December 2003; published 25 June 2004) This work was supported by DARPA, by the Caltech Lee Center, and by the National Science Foundation. The author acknowledges T. J. Kippenberg, D. K. Armani, and S.M. Spillane for helpful discussions.Files
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- 3448
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- CaltechAUTHORS:ROKprl04
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2006-06-07Created from EPrint's datestamp field
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