Diode-Pumped Thulium (Tm)/Holmium (Ho) Composite Fiber 2.1-Micrometers Laser
ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
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We demonstrate the worlds first composite fiber laser of holmium-core and thulium-doped cladding. The composite fiber was optically pumped by an 803-nm fiber coupled diode source and was demonstrated to emit at 2020 nm with 29 slope efficiency and at 2070 nm at 4 optical-to-optical with a peak power of 1.5 W.
- Lasers and Masers