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Optics Letters

Optics Letters


  • Vol. 29, Iss. 5 — Mar. 1, 2004
  • pp: 465–467

Experimental confirmation of matched bends

Andrea Melloni, Giuseppe Cusmai, and Mario Martinelli  »View Author Affiliations

Optics Letters, Vol. 29, Issue 5, pp. 465-467 (2004)

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Modal conversion between the fundamental mode and the first-order (leaky) mode has been experimentally investigated in high-index-contrast integrated-optical bent waveguides. The matched bend condition has been experimentally confirmed on cascaded bends, and the effect of both matched and unmatched bends on Y branches has been investigated. Good agreement between theoretical predictions and experimental results for both monomode and multimode waveguides is achieved. It is demonstrated that, in bent waveguides, the modal conversion between the fundamental mode and the first (leaky) mode can be accurately controlled to avoid additional losses and transfer function impairments.

© 2004 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(230.3120) Optical devices : Integrated optics devices
(230.7370) Optical devices : Waveguides

Andrea Melloni, Giuseppe Cusmai, and Mario Martinelli, "Experimental confirmation of matched bends," Opt. Lett. 29, 465-467 (2004)

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  1. S. Tomljenovic-Hannic, J. D. Love, and A. Ankiewiez, Electron. Lett. 38, 220 (2002).
  2. A. Melloni, F. Carniel, R. Costa, and M. Martinelli, J. Lightwave Technol. 19, 571 (2001).
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  4. T. Kitoh, N. Takato, M. Yasu, and M. Kawachi, J. Lightwave Technol. 13, 555 (1995).
  5. T. Hirono, M. Kohtoku, Y. Yoshikuni, W. W. Lui, and K. Yokoyama, IEEE Photon. Technol. Lett. 10, 982 (1998).
  6. LioniX BV, Enschede, The Netherlands, http://www.lionixbv.nl.

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