Composite material hollow core fibers: functionalisation with silicon and 2D materials

A. Lewis; F. De Lucia; W. Belardi; F. Poletti; C. C. Huang; D. Hewak; P. J. A. Sazio

doi:10.1117/12.2289785

23 February 2018 Composite material hollow core fibers: functionalisation with silicon and 2D materials

A. Lewis, F. De Lucia, W. Belardi, F. Poletti, C. C. Huang, D. Hewak, P. J. A. Sazio

Proceedings Volume 10535, Integrated Optics: Devices, Materials, and Technologies XXII; 105350N (2018) https://doi.org/10.1117/12.2289785
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

Hollow Core Anti-resonant fibers allow for guidance of mid-infrared light at low attenuation and can be used for a variety of applications, such as high power laser transmission and gas sensing. Recent work has seen the integration of silicon into such fibers with linear losses potentially as low as 0.1dB/m. Due to the change in refractive index difference of silicon via for example the free carrier plasma dispersion effect, the prospect of an all optical modulator using such a fiber has been proposed. Here, further work has been undertaken on the integration of functional materials inside hollow core fibers via the deposition of the TMD semiconductor material MoS₂, in its few-layered form. Through the use of a liquid precursor, a high quality MoS₂ film can be deposited over 30cm length of fiber, as confirmed via Raman spectroscopy. The transmission spectra of these novel composite material hollow core fibers has also been analysed, showing additional loss of around 5dB/m, despite being only around 2nm in thickness. This implies that the refractive index of the integrated material is potentially able to modify the guidance properties of the fiber sample. We will present a comparison of the composite material hollow core fibers we have fabricated to date and discuss the prospects for using these novel waveguides in the active manipulation of light, including optical switching, sensing and frequency generation.

Citation Download Citation

A. Lewis, F. De Lucia, W. Belardi, F. Poletti, C. C. Huang, D. Hewak, and P. J. A. Sazio "Composite material hollow core fibers: functionalisation with silicon and 2D materials", Proc. SPIE 10535, Integrated Optics: Devices, Materials, and Technologies XXII, 105350N (23 February 2018); https://doi.org/10.1117/12.2289785

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KEYWORDS

Optical fibers

Molybdenum

Refractive index

Composites

Silicon

Numerical simulations

Waveguides

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