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7.8-GHz Graphene-Based 2-μm Monolithic Waveguide Laser

IEEE Journal of Selected Topics in Quantum Electronics (2015) 21(1) 395-400
DOI: 10.1109/JSTQE.2014.2350016
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Abstract

We report a pulsed waveguide laser working at 1944 nm, mode-locked with a saturable absorber consisting of a graphene film deposited on an output coupler mirror. The waveguide is created into a ceramic Thulium-doped Yttrium Aluminium Garnet by ultrafast laser inscription. Q-switched mode-locking is achieved, with 6.5 mW average output power and ∼7.8 GHz pulse rate. This is a convenient, compact, high repetition rate laser for various applications, such as medical diagnostics and spectroscopy.

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Ren, Y., Brown, G., Mary, R., Demetriou, G., Popa, D., Torrisi, F., … Kar, A. K. (2015). 7.8-GHz Graphene-Based 2-μm Monolithic Waveguide Laser. IEEE Journal of Selected Topics in Quantum Electronics, 21(1), 395–400. https://doi.org/10.1109/JSTQE.2014.2350016

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