In this paper, a micro-tapered long period grating is fabricated on fluoride optical fiber, overcoming the challenges related to the thermomechanical properties of this glass. The period of the fabricated zirconium fluoride grating is approximately Λ=1.15 mm and the waist diameter of each micro-taper is approximately dw= 95 μm. The broadband characterization in the mid-infrared demonstrates the presence of a dip in the transmission spectrum, due to the coupling between the LP01 and the LP02 electromagnetic modes. The proposed low-cost long period grating paves the way to several applications in the mid-infrared such as biosensing, and optical filtering.
A Long Period Grating based on ZBLAN Optical Fiber for the Mid-Infrared / Anelli, F.; Loconsole, A. M.; Venck, S.; Cozic, S.; Prudenzano, F.. - (2025), pp. 1-4. ( 25th Anniversary International Conference on Transparent Optical Networks, ICTON 2025 esp 2025) [10.1109/ICTON67126.2025.11125063].
A Long Period Grating based on ZBLAN Optical Fiber for the Mid-Infrared
Anelli F.;Loconsole A. M.;Prudenzano F.
2025
Abstract
In this paper, a micro-tapered long period grating is fabricated on fluoride optical fiber, overcoming the challenges related to the thermomechanical properties of this glass. The period of the fabricated zirconium fluoride grating is approximately Λ=1.15 mm and the waist diameter of each micro-taper is approximately dw= 95 μm. The broadband characterization in the mid-infrared demonstrates the presence of a dip in the transmission spectrum, due to the coupling between the LP01 and the LP02 electromagnetic modes. The proposed low-cost long period grating paves the way to several applications in the mid-infrared such as biosensing, and optical filtering.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
