Linearly-polarized single-transverse-mode high-energy multi-ten nanosecond fiber amplifier with 50W average power

Linearly-polarized single-transverse-mode high-energy multi-ten nanosecond fiber amplifier with 50W average power

A linearly polarized single-transverse-mode Yb-doped double clad polarization-maintaining fiber amplifier at 1064nm is reported, which delivers 53.1W average power at 40kHz repetition rate, with pulse energy >1mJ, duration 30ns, polarization extinction ratio 13dB, and M(2)1.2. Stimulated Brilloui...

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Veröffentlicht in:Optics express 2006-08, Vol.14 (17), p.7604-7609
Hauptverfasser: Ye, Changgeng, Gong, Mali, Yan, Ping, Liu, Qiang, Chen, Gang
Format: Artikel
Sprache:eng
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Zusammenfassung:A linearly polarized single-transverse-mode Yb-doped double clad polarization-maintaining fiber amplifier at 1064nm is reported, which delivers 53.1W average power at 40kHz repetition rate, with pulse energy >1mJ, duration 30ns, polarization extinction ratio 13dB, and M(2)1.2. Stimulated Brillouin scattering (SBS) phenomenon during amplification is discussed, and a new SBS suppression approach using linewidth broadening induced by self-phase modulation (SPM) is demonstrated.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.14.007604