Search form

TitleUltrafast Dy:fluoride fiber laser beyond 3 μm.
Publication TypeJournal Article
Year of Publication2019
AuthorsWang, Yuchen, Frédéric Jobin, Simon Duval, Vincent Fortin, Paolo Laporta, Martin Bernier, Gianluca Galzerano, and Réal Vallée
JournalOpt Lett
Date Published2019 Jan 15

We report a passively mode-locked Dy:fluoride fiber laser emitting around 3.1 μm based on the nonlinear polarization evolution technique in a ring configuration, using in-band pumping at 2.8 μm. Transform-limited and self-starting mode-locked pulses as short as 828 fs with a center wavelength around 3.1 μm and repetition rates up to 60 MHz are obtained. In the single-pulse regime, a maximum average output power of 204 mW is measured, corresponding to a peak power of 4.2 kW and a pulse energy of 4.8 nJ. This first demonstration, to the best of our knowledge, of a femtosecond mode-locked fiber laser emitting directly beyond 3 μm paves the way for frequency comb synthesis in the molecular fingerprint region.

Alternate JournalOpt Lett
PubMed ID30644909