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.
|Proceedings of SPIE - International Society for Optical Engineering
|Published - 6 Mar 2013
|Solid State Lasers XXII: Technology and Devices - San Francisco, CA, United States
Duration: 3 Feb 2013 → 5 Feb 2013
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- chalcogenide fiber
- femtosecond laser
- fiber optics
- germanate fiber
- mid-IR laser
- nonlinear optics
- Supercontinuum generation