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A compact, single-frequency, high-power, SBS-free, Yb-doped single-stage fiber amplifier
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för elektronikkonstruktion.ORCID-id: 0000-0002-4681-0514
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för elektronikkonstruktion.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för elektronikkonstruktion.ORCID-id: 0000-0002-3790-0729
2019 (engelsk)Inngår i: Proceedings of SPIE - The International Society for Optical Engineering / [ed] W. Andrew Clarkson and Ramesh K. Shori, SPIE - International Society for Optical Engineering, 2019, Vol. 10896, s. 6pp-, artikkel-id 1089618Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Interest in compact, single-frequency fiber amplifier has increased within many scientific and industrial applications. The main challenge is the onset of nonlinear effects, which limit their power scaling. Here we demonstrate a compact, high-power, single-frequency, polarization-maintaining, continous-wave fiber amplifier using only one amplification stage. We developed the fiber amplifier using a master oscillator fiber amplifier architecture, where a low-noise, single-frequency, solid-state laser operating at 1064 nm was used as a seed source. We evaluated the amplifier's performance by using several state-of-the-art, small-core, Ytterbium (yb)-doped fibers, as well as an in-house-made, highly Yb-doped fiber. An output power of 82 W was achieved with no sign of stimulated Brillouin scattering. A good beam quality and a polarization extinction ratio (PER) of > 25 dB were achieved. The compact fiber amplifier can be a competitive alternative to multi stage designed fiber amplifiers.

sted, utgiver, år, opplag, sider
SPIE - International Society for Optical Engineering, 2019. Vol. 10896, s. 6pp-, artikkel-id 1089618
Emneord [en]
Single-frequency laser, Ytterbium-doped fiber amplifier, stimulated Brillouin scattering, high-power fiber amplifier, compact fiber amplifier
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Identifikatorer
URN: urn:nbn:se:miun:diva-36042DOI: 10.1117/12.2511049ISI: 000483062600028Scopus ID: 2-s2.0-85068317380OAI: oai:DiVA.org:miun-36042DiVA, id: diva2:1307025
Konferanse
Solid State Lasers XXVIII: Technology and Devices 2019, San Francisco, California, United States, 5-7 February, 2019
Tilgjengelig fra: 2019-04-25 Laget: 2019-04-25 Sist oppdatert: 2019-11-26bibliografisk kontrollert

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