Journal
APPLIED PHYSICS LETTERS
Volume 107, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4927384
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Funding
- AFRL Sensors Directorate, EOARD [FA8655-1-3026]
- EPSRC [EP/G030227/1, EP/K502844/1]
- EPSRC [EP/G030227/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G030227/1, 1376243] Funding Source: researchfish
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The authors present a mid-IR depressed cladding waveguide laser in Fe:ZnSe. The laser produced a maximum output power of 76 mW at 4122 nm and laser thresholds as low as 154 mW were demonstrated. This represents a 44% reduction in threshold power compared with the bulk laser system demonstrated in this paper. The waveguide laser was found to have a narrow spectral linewidth of 6 nm FHWM compared to the 50 nm typical of bulk Fe: ZnSe lasers. (C) 2015 Author(s).
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