Investigation on dispersion in the active optical waveguide resonator

Zihan Qiu; Yining Gao; Wei Xie

doi:10.1117/12.2316468

5 March 2018 Investigation on dispersion in the active optical waveguide resonator

Zihan Qiu, Yining Gao, Wei Xie

Proceedings Volume 10710, Young Scientists Forum 2017; 1071018 (2018) https://doi.org/10.1117/12.2316468
Event: Young Scientists Forum 2017, 2017, Shanghai, China

Abstract

Introducing active gain in the optical waveguide resonator not only compensates the loss, but also can change the dispersion relationship in the ring resonator. It is demonstrated that the group delay time is negative when the resonator is in the undercoupled condition, which also means the resonator exhibits the fast light effect. Theoretical analysis indicates that fast light effect due to anomalous dispersion, would be manipulated by the gain coefficient controlled by the input pump light power and that fast light would enhance scale factor of the optical resonant gyroscope. Resonance optical gyroscope (ROG)’s scale factor for measuring rotation rate is enhanced by anomalous dispersion with superluminal light propagation. The sensitivity of ROG could be enhanced by anomalous dispersion by coupled resonators even considering the effect of anomalous dispersion and propagation gain on broadened linewidth, and this could result in at least two orders of magnitude enhancement in sensitivity.

Citation Download Citation

Zihan Qiu, Yining Gao, and Wei Xie "Investigation on dispersion in the active optical waveguide resonator", Proc. SPIE 10710, Young Scientists Forum 2017, 1071018 (5 March 2018); https://doi.org/10.1117/12.2316468

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