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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 10 — May. 14, 2007
  • pp: 6102–6112

Compact and efficient injection of light into band-edge slow-modes

P. Velha, J. P. Hugonin, and P. Lalanne  »View Author Affiliations

Optics Express, Vol. 15, Issue 10, pp. 6102-6112 (2007)

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We design compact (a few wavelength long) and efficient (>99%) injectors for coupling light into slow Bloch modes of periodic thin film stacks and of periodic slab waveguides. The study includes the derivation of closed-form expressions for the injection efficiency as a function of the group-velocity of injected light, and the proof that 100% coupling efficiencies for arbitrary small group velocities is possible with an injector length scaling as log(c/vg). The trade-off between the injector bandwidth and the group velocity of the injected light is also considered.

© 2007 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(260.2110) Physical optics : Electromagnetic optics
(350.7420) Other areas of optics : Waves

ToC Category:
Integrated Optics

Original Manuscript: March 16, 2007
Revised Manuscript: April 25, 2007
Manuscript Accepted: April 30, 2007
Published: May 2, 2007

P. Velha, J. P. Hugonin, and P. Lalanne, "Compact and efficient injection of light into band-edge slow-modes," Opt. Express 15, 6102-6112 (2007)

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