Structure optimization of slotted photonic crystal waveguide for gas sensor

Yong Zhao; Ya-Nan Zhang; Di Wu; Qi Wang

doi:10.1117/12.965878

7 November 2012 Structure optimization of slotted photonic crystal waveguide for gas sensor

Yong Zhao, Ya-Nan Zhang, Di Wu, Qi Wang

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84215Y (2012) https://doi.org/10.1117/12.965878
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

To realize a high sensitivity gas sensor, a large wideband, temperature stabilized and large light confinement slow light structure in slotted photonic crystal waveguide (SPCW) is designed. The simulation results indicate that with a proper optimization of the SPCW structure, a very high group index of 105 can be achieved and the electric field enhancement factor would reach to 12. Combined with the correlation spectroscopy for signal processing, the detection limit of 10 ppm is achieved.

Citation Download Citation

Yong Zhao, Ya-Nan Zhang, Di Wu, and Qi Wang "Structure optimization of slotted photonic crystal waveguide for gas sensor", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84215Y (7 November 2012); https://doi.org/10.1117/12.965878

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