Under-Coupling Whispering Gallery Mode Resonator Applied to Resonant Micro-Optic Gyroscope

As an important sensing element, the whispering gallery mode resonator (WGMR) parameters seriously affect the resonant micro-optic gyroscope (RMOG) performance. This work proposes an under-coupling resonator to improve the resonator’s Q value and to optimize the coupling coefficient to maximize the...

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Detalles Bibliográficos
Autores principales: Qian, Kun, Tang, Jun, Guo, Hao, Liu, Wenyao, Liu, Jun, Xue, Chenyang, Zheng, Yongqiu, Zhang, Chengfei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5298673/
https://www.ncbi.nlm.nih.gov/pubmed/28067824
http://dx.doi.org/10.3390/s17010100
Descripción
Sumario:As an important sensing element, the whispering gallery mode resonator (WGMR) parameters seriously affect the resonant micro-optic gyroscope (RMOG) performance. This work proposes an under-coupling resonator to improve the resonator’s Q value and to optimize the coupling coefficient to maximize the RMOG’s sensitivity. GeO(2)-doped silica waveguide-type resonators with different coupling coefficients were simulated, designed, fabricated and tested. An under-coupling ring resonator with a quality factor of 10 million is reported. The RMOG system was built based on this resonator and the scale factor was tested on a uniaxial high-precision rotating platform. Experimental results show that this resonator could improve the RMOG sensitivity by five times.

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