Abstract
We report demonstration of Watt level waveguide lasers fabricated using Ultrafast Laser Inscription (ULI). The waveguides were fabricated in bulk chromium and iron doped zinc selenide crystals with a chirped pulse Yb fiber laser. The depressed cladding structure in Fe:ZnSe produced output powers of 1 W with a threshold of 50 mW and a slope efficiency of 58%, while a similar structure produced 5.1 W of output in Cr:ZnSe with a laser threshold of 350 mW and a slope efficiency of 41%. These results represent the current state-of-the-art for ULI waveguides in zinc based chalcogenides.
Original language | English |
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Pages (from-to) | 3502-3512 |
Number of pages | 11 |
Journal | Optics Express |
Volume | 24 |
Issue number | 4 |
DOIs | |
Publication status | Published - 22 Feb 2016 |
Keywords
- FIBER LASER
- ZNSE
- CDTE
- NM