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High average power picoseconds fiber amplifier with 20 μm core YDF
- Source :
- Laser Physics Letters. 9:440-444
- Publication Year :
- 2012
- Publisher :
- Astro, Ltd., 2012.
-
Abstract
- In this letter we report a simple single-stage amplifier realized as high as 62 W average power output at 1064 nm wavelength, 40 picoseconds pulse width and 80 MHz repetition from 0.7 W seed laser based on backward pumped master-oscillator fiber power amplifier (MOPA) system. It is can stable operation in 57.6 W output for hours. We applied a semiconductor saturable absorber mirror (SESAM) passive mode-lock Nd:YVO4 oscillator as seed source and 6m long 20 μm core double-cladding Yb-doped fiber (YDF) as gain medium. To the best of our knowledge, 62 W average power is the highest output of single-stage ps-pulse amplifier with 20 μm-core fiber. None amplified spontaneous emission (ASE) and stimulated Raman scattering (SRS) nonlinear phenomenon was observed in 57.6 W high average power output.
Details
- ISSN :
- 1612202X and 16122011
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- Laser Physics Letters
- Accession number :
- edsair.doi...........c27f4d9252f19291413f4eb9b0c1807b