Abstract
Raman lasers based on mid-infrared fibers operating at 3-5 μm atmospheric transparency window are attractive sources for several applications. Compared to fluoride and chalcogenide fibers, tellurite fibers are more advantageous for high power Raman fiber laser sources at 3-5 μm because of their broader Raman gain bandwidth, much larger Raman shift and better physical and chemical properties. Here we report on our simulations for the development of 10-watt-level 3-5 μm Raman lasers using tellurite fibers as the nonlinear gain medium and readily available continuous-wave (cw) and Q-switched erbium-doped fluoride fiber lasers at 2.8 μm as the pump sources. Our results show that a watt-level or even tenwatt-level fiber laser source in the 3-5 μm atmospheric transparency window can be achieved by utilizing the 1st-and 2nd-order Raman scattering in the tellurite fiber. The presented numerical study provides valuable guidance for future 3-5 um Raman fiber laser development.
Original language | English (US) |
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Pages (from-to) | 7559-7573 |
Number of pages | 15 |
Journal | Optics Express |
Volume | 23 |
Issue number | 6 |
DOIs | |
State | Published - Mar 23 2015 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics