Compact graphene mode-locked wavelength-tunable erbium-doped fiber lasers: from all anomalous dispersion towards all normal dispersion

TL;DR

This paper investigates the use of atomic layer graphene to mode lock erbium-doped fiber lasers, enabling wide wavelength tuning and pulse width variation across different dispersion regimes, resulting in a compact, low-cost ultrashort pulse source.

Contribution

It demonstrates the first experimental realization of graphene mode-locked erbium-doped fiber lasers with tunable wavelengths across all dispersion regimes.

Findings

Wide range soliton wavelength tuning achieved

Pulse width variation demonstrated

Compact and low-cost ultrashort pulse source created

Abstract

Soliton operation and soliton wavelength tuning of erbium-doped fiber lasers mode locked with atomic layer graphene was experimentally investigated under various cavity dispersion conditions. It was shown that not only wide range soliton wavelength tuning but also soltion pulse width variation could be obtained in the fiber lasers. Our results show that the graphene mode locked erbium-doped fiber lasers provide a compact, user friendly and low cost wavelength tunable ultrahsort pulse source.