Broadband mid-infrared hollow core photonic bandgap fiber for multi-component trace-gas sensing

Liang Shang; Xiuqin Yang; Fengyan Lin

doi:10.1117/12.2034406

29 August 2013 Broadband mid-infrared hollow core photonic bandgap fiber for multi-component trace-gas sensing

Liang Shang, Xiuqin Yang, Fengyan Lin

Proceedings Volume 8914, International Symposium on Photoelectronic Detection and Imaging 2013: Fiber Optic Sensors and Optical Coherence Tomography; 89140X (2013) https://doi.org/10.1117/12.2034406
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

As a class of hollow core photonic bandgap fiber (HC-PBGF), hollow core Bragg fibers (HC-BFs) with broadband transmission for multi-component trace-gas sensing have attracted much interest in recent years. In this paper, we numerically investigate the PBG characteristics of HC-BFs with the conventional periodic cladding (CPC) and with our previously proposed linearly-chirped cladding (LCC). The results show that the LCC structure is more suitable for broadening the omnidirectional PBG (OPBG) range by regulating the linear increment of cladding period or the layer number, which provide us with more degrees of freedom for designing a broadband HC-BF. Based on that, an optimized Te/PS (tellurium/polystyrene)-based HC-BF with the LCC for the wavelength range of OPBG covering the whole range of 3 to 5μm is designed. Moreover, by using the ray-optics method, the transmission loss of HE11 mode is also calculated, verifying the feasibility of the Te/PS-based LCC with mid-infrared broadband low-loss transmission ranging from 3 to 5μm.

Citation Download Citation

Liang Shang, Xiuqin Yang, and Fengyan Lin "Broadband mid-infrared hollow core photonic bandgap fiber for multi-component trace-gas sensing", Proc. SPIE 8914, International Symposium on Photoelectronic Detection and Imaging 2013: Fiber Optic Sensors and Optical Coherence Tomography, 89140X (29 August 2013); https://doi.org/10.1117/12.2034406

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