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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campilo
  • Vol. 32, Iss. 17 — Sep. 1, 2007
  • pp: 2620–2622

Optics InfoBase > Optics Letters > Volume 32 > Issue 17 > Page 2620

Pulse advancement and delay in an integrated-optical two-port ring-resonator circuit: direct experimental observations

H. P. Uranus, L. Zhuang, C. G. H. Roeloffzen, and H. J. W. M. Hoekstra  »View Author Affiliations


Optics Letters, Vol. 32, Issue 17, pp. 2620-2622 (2007)
http://dx.doi.org/10.1364/OL.32.002620


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Abstract

We report experimental observations of the negative-group-velocity ( v g ) phenomenon in an integrated-optical two-port ring-resonator circuit. We demonstrate that when the v g is negative, the (main) peak of output pulse appears earlier than the peak of a reference pulse, while for a positive v g , the situation is the other way around. We observed that a pulse splitting phenomenon occurs in the neighborhood of the critical-coupling point. This pulse splitting limits the maximum achievable delay and advancement of a single device as well as facilitating a smooth transition from highly advanced to highly delayed pulse, and vice versa, across the critical-coupling point.

© 2007 Optical Society of America

OCIS Codes
(060.5530) Fiber optics and optical communications : Pulse propagation and temporal solitons
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(130.0130) Integrated optics : Integrated optics
(230.5750) Optical devices : Resonators
(260.2030) Physical optics : Dispersion

ToC Category:
Integrated Optics

History
Original Manuscript: May 22, 2007
Revised Manuscript: July 5, 2007
Manuscript Accepted: July 9, 2007
Published: August 29, 2007

Citation
H. P. Uranus, L. Zhuang, C. G. H. Roeloffzen, and H. J. W. M. Hoekstra, "Pulse advancement and delay in an integrated-optical two-port ring-resonator circuit: direct experimental observations," Opt. Lett. 32, 2620-2622 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-17-2620

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