Terahertz tunable narrow bandpass filter based on photonic crystal cavity

Jinlong He; Pingan Liu; Yalan He; Zhi Hong

doi:10.1117/12.918785

13 March 2012 Terahertz tunable narrow bandpass filter based on photonic crystal cavity

Jinlong He, Pingan Liu, Yalan He, Zhi Hong

Proceedings Volume 8330, Photonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz Science and Technology; 83300T (2012) https://doi.org/10.1117/12.918785
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China

Abstract

We have fabricated high quality THz tunable bandpass filters based on one dimensional photonic crystal cavity. The filter have a high quality about 1500 and can have a very narrow passband and the full width at half maximum (FWHM) can be about 200MHz and the peak transmission is higher than -4dB. With the length of cavity adjusted by a motorized linear stage, the central frequency of the filter can be tuned continuously. The bandwidth and insertion loss is also analyzed theoretically.

Citation Download Citation

Jinlong He, Pingan Liu, Yalan He, and Zhi Hong "Terahertz tunable narrow bandpass filter based on photonic crystal cavity", Proc. SPIE 8330, Photonics and Optoelectronics Meetings (POEM) 2011: Laser and Terahertz Science and Technology, 83300T (13 March 2012); https://doi.org/10.1117/12.918785

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