Graphene Q-switched, tunable fiber laser
D. Popa, Z. Sun, T. Hasan, F. Torrisi, F. Wang, A. C. Ferrari
TL;DR
This paper presents a graphene-based saturable absorber enabling a wideband-tunable, Q-switched fiber laser with microsecond pulses and tunable wavelengths, suitable for various sensing and diagnostic applications.
Contribution
Introduction of a simple, low-cost graphene saturable absorber for wideband tunable Q-switched fiber lasers with high pulse energy.
Findings
Pulse duration of ~2 microseconds
Tunable wavelength range of 1522-1555 nm
Pulse energy up to 40 nJ
Abstract
We demonstrate a wideband-tunable Q-switched fiber laser exploiting a graphene saturable absorber. We get ~2us pulses, tunable between 1522 and 1555nm with up to~40nJ energy. This is a simple and low-cost light source for metrology, environmental sensing and biomedical diagnostics.
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