Design and analysis of ethanol-infiltrated photonic crystal fiber for wavelength conversion

In this article, ethanol (liquid)-infiltrated photonic crystal fiber (LIPCF) has been investigated and its properties have been analyzed for broadband wavelength conversion using the modulation instability phenomenon. With the help of the selective air-holes infiltration technique, dispersion engineering has been performed without modification to existing fiber structure and wavelength conversion span can be tuned by varying the pump wavelengths in the normal + anomalous dispersion regions (LIPCF-1) and all normal dispersion regimes (LIPCF-2). The simulated and studied results illustrate that the normal dispersion pumping close to zero dispersion in LIPCF-1 and LIPCF-2 exhibits the maximum wavelength shift of 29.799 µm and 7.088 µm, respectively. Besides this wavelength conversion, gain spectra are also analyzed for both PCFs by varying the pump wavelengths and peak powers. The suggested infiltrated PCF structure is found to be appropriate for wide-tunable wavelength converters and parametric amplifiers in the all-optical domain.