Broadband dispersion measurement of photonic crystal fibers with nanostructured core

• DOI: 10.1007/s11082-014-9979-y
• Publication Date: 2014-07-13T11:03:19Z
• Authors: Grzegorz Stępniewski; Jacek Pniewski; Mariusz Klimczak; Tadeusz Martynkien; Dariusz Pysz; Ryszard Stępień; Ireneusz Kujawa; Krzysztof Borzycki; Ryszard Buczyński
• Keywords: Cladding (metalworking); Supercontinuum; Zero-dispersion wavelength

Introduction of subwavelength inclusions in the core opens up an additional degree freedom shaping dispersion characteristic photonic crystal fibers (PCFs). We have developed a PCF with nanostructured inclusion to verify this concept. To suppress higher order modes, cladding structure fiber is composed first ring linear filling factor 0.95 and remaining 5 rings lower 0.4 lattice constant $$2.6\,\upmu \hbox {m}$$ . Diameter nano-inclusion 410 nm. For development, we used pair thermally matched soft glasses: Schott SF6 lead glass in-house synthesized NC21 borosilicate glass. In paper, report on measurements using spectral interferomeric technique. A unbalanced Mach–Zehnder interferometer, combined supercontinuum source used. Dispersion characteristics wide range wavelengths extending from 0.65 $$1.6\,\upmu , are measured verified against calculated results.