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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. 12 — Dec. 1, 2010
  • pp: 2774–2783

Tunable fast and slow light in a traveling wave microresonator via interaction of intra-cavity backscattering with dual contrapropagating inputs

Thomas Y. L. Ang and Nam Quoc Ngo  »View Author Affiliations

JOSA B, Vol. 27, Issue 12, pp. 2774-2783 (2010)

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We present a theoretical investigation on the interplay between the intra-cavity backscattering and the losses out of the cavity when dual contra-propagating inputs are launched into a traveling wave microresonator, which has random surface defects (or backscatters) that are intentionally introduced. By adjusting the amplitude and/or phase differences between the dual inputs, the interaction of the cavity modes with the backscatters can be controlled. Consequently, the transmission and dispersion of the output light can be easily manipulated. This feature makes the dual input scheme highly attractive for continuously tunable fast and slow light applications, particularly if active tuning elements, such as p - i - n diode and heater, are absent in the cavity. Continuous tunability in the group delay of the fast and slow light is also demonstrated at the C-band wavelength of 1.55 μ m .

© 2010 Optical Society of America

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(230.5750) Optical devices : Resonators
(230.7020) Optical devices : Traveling-wave devices
(230.7370) Optical devices : Waveguides

ToC Category:
Integrated Optics

Original Manuscript: June 22, 2010
Manuscript Accepted: July 30, 2010
Published: November 23, 2010

Thomas Y. L. Ang and Nam Quoc Ngo, "Tunable fast and slow light in a traveling wave microresonator via interaction of intra-cavity backscattering with dual contrapropagating inputs," J. Opt. Soc. Am. B 27, 2774-2783 (2010)

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