Solid-core photonic bandgap fiber with polymer coating for biosensing applications

Y. F. Zhang; C. C. Chan; J. Sun

doi:10.1117/12.803257

11 November 2008 Solid-core photonic bandgap fiber with polymer coating for biosensing applications

Y. F. Zhang, C. C. Chan, J. Sun

Proceedings Volume 7134, Passive Components and Fiber-based Devices V; 713442 (2008) https://doi.org/10.1117/12.803257
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

Abstract

In order to achieve photonic band-gap effect as sensing mechanism and improve biocompatibility of relatively lower-cost silica-core phonic crystal fibers (SCPCF) and make use of photonic band-gap effect as sensing mechanism, polymer with similar biocompatibility as PMMA coating in SCPCF air-holes is proposed in this paper. In order to evaluate the polymer coating effect, a three-layer model of air hole is proposed. The wavelength shifts of photonic band-gap edges (PBEs) were evaluated by plane wave expansion (PWE) method, assuming refractive index of silica n_s, polymer n_p and air n_a are 1.45, 1.50 and 1.00 respectively. Blue shifting of bands are observed in the simulation and the bandwidth of each band-gap becomes narrower with the increasing of air ratio. The result shows that 1nm change of air hole is able to obtain a wavelength shift of 0.43nm. Assuming the wavelength shift of 0.01nm can be detected, a small air hole variation of 0.023nm can be measured.

Citation Download Citation

Y. F. Zhang, C. C. Chan, and J. Sun "Solid-core photonic bandgap fiber with polymer coating for biosensing applications", Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 713442 (11 November 2008); https://doi.org/10.1117/12.803257

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