OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 19 — Sep. 15, 2008
  • pp: 14588–14596

Experimental determination of coupled-microring filter parameters via pole-zero extraction

Ashok M. Prabhu, Hai Ling Liew, and Vien Van  »View Author Affiliations

Optics Express, Vol. 16, Issue 19, pp. 14588-14596 (2008)

View Full Text Article

Enhanced HTML    Acrobat PDF (687 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



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

Original Manuscript: July 29, 2008
Revised Manuscript: August 25, 2008
Manuscript Accepted: August 26, 2008
Published: September 2, 2008

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)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. B. E. Little, S. T. Chu, H. A. Haus, J. Foresi, and J.-P. Laine, "Microring resonator channel dropping filters," J. Lightwave Technol. 15, 998 (1997). [CrossRef]
  2. C. K. Madsen, "Efficient architectures for exactly realizing optical filters with optimum bandpass design," IEEE Photon. Technol. Lett. 10, 1136 (1998). [CrossRef]
  3. V. Van, "Synthesis of elliptic optical filters using mutually-coupled microring resonators," J. Lightwave Technol. 25, 584 (2007). [CrossRef]
  4. G. Lenz and C. K. Madsen, "General optical all-pass filter structures for dispersion control in WDM systems," J. Lightwave Technol. 17, 1248 (1999). [CrossRef]
  5. F. Morichetti, A. Melloni, C. Ferrari, and M. Martinelli, "Error-free continuously-tunable delay at 10 Gbit/s in a reconfigurable on-chip delay-line," Opt. Express 16, 8395 (2008). [CrossRef] [PubMed]
  6. J. V. Hryniewicz, P. P. Absil, B. E. Little, R. A. Wilson, and P.-T. Ho, "High order filter response in coupled microring resonators," IEEE Photon. Technol. Lett. 12, 320 (2000). [CrossRef]
  7. B. E. Little, S. T. Chu, P. P. Absil, J. V. Hryniewicz, F. G. Johnson, F. Seiferth, D. Gill, V. Van, O. King, and M. Trakalo, "Very high order microring resonator filters for WDM applications," IEEE Photon. Technol. Lett. 16, 2263 (2004). [CrossRef]
  8. T. Barwicz, M. Popovic, P. Rakich, M. Watts, H. Haus, E. Ippen, and H. Smith, "Microring-resonator-based add-drop filters in SiN: fabrication and analysis," Opt. Express 12, 1437 (2004). [CrossRef] [PubMed]
  9. F. Xia, M. Rooks, L. Sekaric, and Y. Vlasov, "Ultra-compact high order ring resonator filters using submicron silicon photonic wires for on-chip optical interconnects," Opt. Express 15, 11934 (2007). [CrossRef] [PubMed]
  10. V. Van, "Circuit-based method for synthesizing serially-coupled microring filters," J. Lightwave Technol. 24, 2912 (2006). [CrossRef]
  11. H. L. Liew and V. Van, "Exact realization of optical transfer functions with symmetric transmission zeros using the double-microring ladder architecture," J. Lightwave Technol. 26 (to be published).
  12. S.-L. Chuang, "Application of the strongly coupled-mode theory to integrated optical devices," IEEE J. Quantum Electron. 23, 499 (1987). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1. Fig. 2. Fig. 3.
Fig. 4.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited