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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 27, Iss. 6 — Jun. 1, 2010
  • pp: 1242–1251

Diatomic coupled-resonator optical waveguide

Ioannis Chremmos and Otto Schwelb  »View Author Affiliations

JOSA B, Vol. 27, Issue 6, pp. 1242-1251 (2010)

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What we believe to be a new optical waveguide is introduced consisting of direct coupled diatomic microresonators, we call the diatomic coupled-resonator optical waveguide (CROW), where the inter-resonator coupling and/or the optical length of adjacent resonators alternate so that the unit cell comprises two resonators. We investigate this device analytically and numerically to find new transmission, group delay, dispersion, and switching characteristics, including a subsidiary stop band within the passband, a result of the alternating resonator parameters, whose width and extinction ratio are directly related to the parameter perturbation, displaying the signature characteristics associated with a finite Bragg grating. Analytical expressions are derived for the band-edge frequencies and the subsidiary stop band width, and numerical simulations illustrate the extent of versatility of the diatomic CROW design, including dispersion slope manipulation. The use of a simple matching structure terminating the diatomic CROW is found to significantly improve the device performance. The sensitivity of the diatomic CROW to the resonator loss is investigated and fabrication issues are also addressed.

© 2010 Optical Society of America

OCIS Codes
(230.5750) Optical devices : Resonators
(250.5300) Optoelectronics : Photonic integrated circuits
(230.4555) Optical devices : Coupled resonators
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Optical Devices

Original Manuscript: February 2, 2010
Manuscript Accepted: April 2, 2010
Published: May 19, 2010

Ioannis Chremmos and Otto Schwelb, "Diatomic coupled-resonator optical waveguide," J. Opt. Soc. Am. B 27, 1242-1251 (2010)

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  1. A. Yariv, Y. Xu, R. K. Lee, and A. Scherer, “Coupled-resonator optical waveguide: a proposal and analysis,” Opt. Lett. 24, 711–713 (1999). [CrossRef]
  2. J. Poon, J. Scheuer, S. Mookherjea, G. Paloczi, Y. Huang, and A. Yariv, “Matrix analysis of microring coupled-resonator optical waveguides,” Opt. Express 12, 90–103 (2004). [CrossRef] [PubMed]
  3. M. Cherchi, “Bloch analysis of finite periodic microring chains,” Appl. Phys. B 80, 109–113 (2005). [CrossRef]
  4. A. Melloni, F. Morichetti, C. Ferrari, and M. Martinelli, “Continuously tunable 1 byte delay in coupled-resonator optical waveguides,” Opt. Lett. 33, 2389–2391 (2008). [CrossRef] [PubMed]
  5. Y. Landobasa and M. Chin, “Defect modes in micro-ring resonator arrays,” Opt. Express 13, 7800–7815 (2005). [CrossRef] [PubMed]
  6. D. D. Smith, H. Chang, and K. A. Fuller, “Whispering-gallery mode splitting in coupled microresonators,” J. Opt. Soc. Am. B 20, 1967–1974 (2003). [CrossRef]
  7. T. Erdogan, “Fiber grating spectra,” J. Lightwave Technol. 15, 1277–1294 (1997). [CrossRef]
  8. S. J. Emelett and R. Soref, “Design and simulation of silicon microring optical routing switches,” J. Lightwave Technol. 23, 1800–1807 (2005). [CrossRef]
  9. P. Yeh, Optical Waves in Layered Media (Wiley, 1988), Sec. 6.
  10. A. Densmore, S. Janz, R. Ma, J. H. Schmid, D.-X. Xu, A. Delâge, J. Lapointe, M. Vachon, and P. Cheben, “Compact and low power thermo-optic switch using folded silicon waveguides,” Opt. Express 17, 10457–10465 (2009). [CrossRef] [PubMed]
  11. P. Chak and J. E. Sipe, “Minimizing finite-size effects in artificial resonance tunneling structures,” Opt. Lett. 31, 2568–2570 (2006). [CrossRef] [PubMed]
  12. J. Capmany, P. Muñoz, J. D. Domenech, and M. A. Muriel, “Apodized coupled resonator waveguides,” Opt. Express 15, 10196–10206 (2007). [CrossRef] [PubMed]
  13. M. Sumetsky and B. J. Eggleton, “Modeling and optimization of complex photonic resonant cavity circuits,” Opt. Express 11, 381–391 (2003). [CrossRef] [PubMed]
  14. G. Cusmai, F. Morichetti, P. Rosotti, R. Costa, and A. Melloni, “Circuit-oriented modeling of ring-resonators,” Opt. Quantum Electron. 37, 343–358 (2005). [CrossRef]
  15. J. D. Doménech, P. Muñoz, and J. Capmany, “The longitudinal offset technique for apodization of coupled resonator optical waveguide devices: concept and fabrication tolerance analysis,” Opt. Express 17, 21050–21059 (2009). [CrossRef] [PubMed]
  16. G. N. Nielson, D. Seneviratne, F. Lopez-Royo, P. T. Rakich, Y. Avrahami, M. R. Watts, H. A. Haus, H. L. Tuller, and G. Barbastathis, “Integrated wavelength-selective optical MEMS switching using ring resonator filters,” IEEE Photon. Technol. Lett. 17, 1190–1192 (2005). [CrossRef]
  17. Q. Xu, B. Schmidt, S. Pradhan, and M. Lipson, “Micrometre-scale silicon electro-optic modulator,” Nature 435, 325–327 (2005). [CrossRef] [PubMed]

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