W‐type highly erbium‐doped active soft‐glass fibre with high nonlinearity. Issue 12 (1st June 2016)

• Record Type: Journal Article
• Authors: Vazquez‐Zuniga, L.A.; Feng, X.; Kwon, Y.; Kim, H.; Shi, J.; Loh, W.; Jeong, Y.
• Is Part Of: Electronics letters. Volume 52:Issue 12(2016)
• Page Start: 1047
• Page End: 1048
• Publication Date: 2016-06-01
• Subjects: optical glass -- erbium -- optical fibre dispersion -- optical wavelength conversion -- optical pumping -- multiwave mixing; W‐type highly erbium‐doped active soft‐glass fibre -- dopant concentration -- lead silicate glass materials -- Schott SF57 -- LLF1 -- SF6 -- flat anomalous dispersion -- parametric wavelength conversion -- continuous‐wave pulsed format -- picosecond‐pulsed format -- spectral broadening -- four‐wave‐mixing effect -- dispersion‐nonlinearity‐engineered fibre -- wavelength 1.48 mum -- Er; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2016.0140
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A highly nonlinear W‐type erbium‐doped fibre with high dopant concentration made of three lead silicate glass materials (Schott SF57, LLF1 and SF6) is presented. The fibre is designed to have a flat anomalous dispersion at ∼1.55 μm, which is critical for enhancing parametric wavelength conversion. With this fibre, signals at ∼ 1.55 μm are successfully amplified in continuous‐wave and pico‐second‐pulsed formats with a 1.48 μm pump source. In particular, spectral broadening of over 350 nm together with strong degenerate four‐wave‐mixing effects is demonstrated. The authors highlight that this novel fibre combines, for first time to their knowledge, the benefits of highly doped active fibres with those of dispersion/nonlinearity‐engineered fibres.