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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 8 — Apr. 12, 2010
  • pp: 8367–8382

Coupled mode theory analysis of mode-splitting in coupled cavity system

Qiang Li, Tao Wang, Yikai Su, Min Yan, and Min Qiu  »View Author Affiliations

Optics Express, Vol. 18, Issue 8, pp. 8367-8382 (2010)

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We analyze transmission characteristics of two coupled identical cavities, of either standing-wave (SW) or traveling-wave (TW) type, based on temporal coupled mode theory. Mode splitting is observed for both directly (cavity-cavity) and indirectly (cavity-waveguide-cavity) coupled cavity systems. The effects of direct and indirect couplings, if coexisting in one system, can offset each other such that no mode splitting occurs and the original single-cavity resonant frequency is retained. By tuning the configuration of the coupled cavity system, one can obtain different characteristics in transmission spectra, including splitting in transmission, zero transmission, Fano-type transmission, electromagnetically-induced-transparency (EIT)-like transmission, and electromagnetically-induced-absorption (EIA)-like transmission. It is also interesting to notice that a side-coupled SW cavity system performs similarly to an under-coupled TW cavity. The results are useful for the design of cavity-based devices for integration in nanophotonics.

© 2010 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(250.5300) Optoelectronics : Photonic integrated circuits
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(230.4555) Optical devices : Coupled resonators

ToC Category:
Integrated Optics

Original Manuscript: February 4, 2010
Manuscript Accepted: March 26, 2010
Published: April 6, 2010

Qiang Li, Tao Wang, Yikai Su, Min Yan, and Min Qiu, "Coupled mode theory analysis of mode-splitting in coupled cavity system," Opt. Express 18, 8367-8382 (2010)

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