12 May 2009 400W monolithic high efficiency 2 μm MOPA
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Progress is being made developing monolithic, all-fiber 2μm wavelength devices that operate robustly at higher power levels. This development includes the critical Tm-doped LMA fiber technology, compatible components such as pump combiners and couplers, along with the optimization of high brightness, high efficiency 790nm pump diodes. In this paper we present recent CW power scaling results and demonstrate a monolithic MOPA system operating at 400W output power with around 20% E-O efficiency.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Christensen, S. Christensen, T. Ehrenreich, T. Ehrenreich, V. Khitrov, V. Khitrov, K. Tankala, K. Tankala, A. Carter, A. Carter, B. Samson, B. Samson, } "400W monolithic high efficiency 2 μm MOPA", Proc. SPIE 7325, Laser Technology for Defense and Security V, 73250C (12 May 2009); doi: 10.1117/12.819311; https://doi.org/10.1117/12.819311

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