Coherent beam combining and phase noise measurements of ytterbium fiber amplifiers |
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| Authors: | Augst Steven J Fan T Y Sanchez Antonio |
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| Institution: | Massachusetts Institute of Technology Lincoln Laboratory, 244 Wood Street, Lexington, Massachusetts 02420, USA. saugst@ll.mit.edu |
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| Abstract: | Phase noise characterization of a 10-W Yb fiber amplifier is presented, and we demonstrate phase locking of two fiber amplifiers with near-perfect fringe contrast at power levels of as much as 10 W per fiber. Coherent beam combining is maintained during the turn-on transient as well as in thermal steady-state operation. |
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