Wide range group delay tuning in lossy fiber ring resonators

Xabier Angulo-Vinuesa; Mikel Bravo; Sonia Martin-Lopez; Manuel Lopez-Amo; Miguel Gonzalez-Herraez

doi:10.1117/12.974947

7 November 2012 Wide range group delay tuning in lossy fiber ring resonators

Xabier Angulo-Vinuesa, Mikel Bravo, Sonia Martin-Lopez, Manuel Lopez-Amo, Miguel Gonzalez-Herraez

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842197 (2012) https://doi.org/10.1117/12.974947
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

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.

Citation Download Citation

Xabier Angulo-Vinuesa, Mikel Bravo, Sonia Martin-Lopez, Manuel Lopez-Amo, and Miguel Gonzalez-Herraez "Wide range group delay tuning in lossy fiber ring resonators", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842197 (7 November 2012); https://doi.org/10.1117/12.974947

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