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Accurate measurement of scattering and absorption loss in microphotonic devices

Borselli, Matthew and Johnson, Thomas J. and Painter, Oskar (2007) Accurate measurement of scattering and absorption loss in microphotonic devices. Optics Letters, 32 (20). pp. 2954-2956. ISSN 0146-9592.

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We present a simple measurement and analysis technique to determine the fraction of optical loss due to both radiation (scattering) and linear absorption in microphotonic components. The method is generally applicable to optical materials in which both nonlinear and linear absorption are present and requires only limited knowledge of absolute optical power levels, material parameters, and the structure geometry. The technique is applied to high-quality-factor (Q=1×10^6 to Q=5×10^6) silicon-on-insulator (SOI) microdisk resonators. It is determined that linear absorption can account for more than half of the total optical loss in the high-Q regime of these devices.

Item Type:Article
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Painter, Oskar0000-0002-1581-9209
Additional Information:© 2007 Optical Society of America. Received July 10, 2007; revised September 10, 2007; accepted September 10, 2007; posted September 12, 2007 (Doc. ID 85012); published October 5, 2007. This work was supported by the Defence Advanced Research Projects Agency through the Electronic Photonic Integrated Chip (EPIC) program. The authors thank Chris Michael, Paul Barclay and Kartik Srinivasan for useful discussions. M.B. Borselli thanks the Moore Foundation, National Physical Science Consortium, and HRL Laboratories for his graduate fellowship support.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
National Physical Science ConsortiumUNSPECIFIED
Hughes Research LaboratoriesUNSPECIFIED
Subject Keywords:Micro-optical devices; radiation scattering; microcavities
Issue or Number:20
Record Number:CaltechAUTHORS:BORol07
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Official Citation:M. Borselli, T. J. Johnson, and O. Painter, "Accurate measurement of scattering and absorption loss in microphotonic devices," Opt. Lett. 32, 2954-2956 (2007)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9285
Deposited By: Archive Administrator
Deposited On:08 Dec 2007
Last Modified:02 Oct 2019 23:59

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