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

Yingying Ren, Graeme Brown, Rose Mary, Giorgos Demetriou, Daniel Popa, Felice Torrisi, Andrea C. Ferrari, Feng Chen, Ajoy K. Kar

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)
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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.
Original languageEnglish
Article number1602106
JournalIEEE Journal of Selected Topics in Quantum Electronics
Issue number1
Publication statusPublished - 1 Jan 2015


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