The performance of mid-infrared fiber lasers operating on the 3.5 μm transition in erbium has improved significantly since the first demonstration that dual wavelength pumping allowed efficient operation. In this contribution, we will discuss the progress of fiber lasers that operate on this transition with an emphasis on advances towards short pulse generation and wavelength agility. Mode-locked operation using saturable absorption is a robust means of achieving ultra-short pulse operation in the near infrared but achieving this in the mid-infrared has been elusive. We will also describe our characterization of the mid-infrared performance of graphene, a material which has been very successfully applied to mode-locked pulse generation in the near infrared.
Erbium-doped mid-infrared fiber lasers
Laser Technology for Defense and Security XV ; 2019 ; Baltimore,Maryland,United States
Proc. SPIE ; 10981
2019-05-13
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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