Nonlinear Propagation of mid-IR Femtosecond Pulses in ZBLAN Fiber

Abstract

We demonstrate environmentally protected delivery of high-power femtosecond mid-IR pulses in a single-mode ZBLAN fiber by soliton formation. A 70-fs Cr:ZnS laser at 2.4 µm reaches this regime already at ~1.5 nJ launched pulse energy.