Supercontinuum generation in Mid-IR using Chalcogenide and Germanate Nonlinear Fiber
Tolstik, Nikolai; Sorokin, Evgeni; Kalashnikov, Vladimir; Klimentov, Dmitry; Dvoyrin, Vladislav; Sorokina, Irina T
Journal article, Peer reviewed
Published version

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http://hdl.handle.net/11250/2463336Utgivelsesdato
2013Metadata
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Originalversjon
Proceedings of SPIE, the International Society for Optical Engineering. 2013, 8599 . 10.1117/12.2003957Sammendrag
We demonstrate mid-infrared (mid-IR) supercontinuum generation with bandwidth from 2 to 2.8 μm at 20 dB below the peak in nonlinear step-index chalcogenide fiber using femtosecond mid-IR pulses directly from the oscillator. We compare the results with a supercontinuum generated in a silica-based high germanium content fiber. Supercontinuum generation occurs at 90 mW of launched average pump power that is equal to the 0.9 nJ pulse energy. The distinctive feature of the obtained supercontinuum is its stability and coherence due to the deterministic supercontinuum generation by the femtosecond pump pulses.