Experimental determination of coupledmicroring filter parameters via pole-zero extraction
Optics Express, Vol. 16, Issue 19, pp. 14588-14596 (2008)
http://dx.doi.org/10.1364/OE.16.014588
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Abstract
A method for directly extracting the coupling coefficients, the resonant frequency detunings and the loss of an Nth-order serially-coupled microring resonator filter from the measured power spectral responses is presented. The device parameters are obtained from the through-port complex transfer function, which is constructed from the experimentally extracted poles and zeros of the filter. We applied the method to determine the parameters of a symmetric microring doublet fabricated in the Siliconon-Insulator material platform. Simulated spectral responses using the extracted parameters showed good agreement with the measured data. The extracted parameters along with the poles and zeros of the device provide important information about the fabrication process and can be used to guide the post-fabrication trimming of high-order microring filters.
© 2008 Optical Society of America
OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.5750) Optical devices : Resonators
(230.4555) Optical devices : Coupled resonators
ToC Category:
Optical Devices
History
Original Manuscript: July 29, 2008
Revised Manuscript: August 25, 2008
Manuscript Accepted: August 26, 2008
Published: September 2, 2008
Citation
Ashok M. Prabhu, Hai Ling Liew, and Vien Van, "Experimental determination of coupledmicroring
filter parameters via pole-zero
extraction," Opt. Express 16, 14588-14596 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-19-14588
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References
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