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Proceedings Paper

Wide range group delay tuning in lossy fiber ring resonators
Author(s): Xabier Angulo-Vinuesa; Mikel Bravo; Sonia Martin-Lopez; Manuel Lopez-Amo; Miguel Gonzalez-Herraez
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Paper Abstract

We demonstrate theoretically and experimentally that a wide-range tuning of group delay values can be achieved in a lossy fiber ring resonator. The tuning mechanism relies simply on varying the loss/coupling ratio in the resonator. This simple structure may be used advantageously in different regimes for many sensing configurations, both for achieving extremely high sensitivity enhancements (by working close to critical coupling, where the group index becomes extremely large) or suppression of undesired refractive index effects (e.g. Kerr effect), by working in the under-coupled regime.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842197 (7 November 2012); doi: 10.1117/12.974947
Show Author Affiliations
Xabier Angulo-Vinuesa, Consejo Superior de Investigaciones Cientificas (Spain)
Mikel Bravo, Univ. Pública de Navarra (Spain)
Sonia Martin-Lopez, Consejo Superior de Investigaciones Cientificas (Spain)
Manuel Lopez-Amo, Univ. Pública de Navarra (Spain)
Miguel Gonzalez-Herraez, Univ. de Alcalá (Spain)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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