AI Article Synopsis
- A 2.8 μm gas Raman laser was developed using a methane-filled hollow-core fiber, achieving an average power of 113 mW and a peak power of 9.5 MW.
- * The system attained a Raman quantum efficiency of 40% when using a 1.064 μm pump source to produce light at 2.812 μm with 1.8 MPa methane gas.
- * This is the first high peak power fiber-based gas Raman laser in the mid-infrared region, with potential applications in supercontinuum generation, laser surgery, molecular tracing, and gas detection.
Article Abstract
We demonstrate a 2.8 μm gas Raman laser in a methane-filled hollow-core negative-curvature fiber with average power of 113 mW, pulse energy of 113 μJ and estimated peak power of 9.5 MW. Raman quantum efficiency of 40% has been reached from the pump source at 1.064 μm to the 2nd order vibrational Stokes at 2.812 μm using 1.8 MPa methane gas. To our knowledge, this is the first high peak power fiber-based gas Raman laser in mid-infrared region and a range of applications in supercontinuum generation, laser surgery, molecular tracing and gas detection are in prospect.
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| http://dx.doi.org/10.1364/OE.26.005609 | DOI Listing |
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