High gain and per in double-pass rod fiber amplifier module

Jean François Lupi; Mette Marie Johansen; Mattia Michieletto; Jesper Lægsgaard

doi:10.1109/CLEOE-EQEC.2019.8871575

High gain and per in double-pass rod fiber amplifier module

Jean François Lupi, Mette Marie Johansen, Mattia Michieletto, Jesper Lægsgaard

NKT Photonics A/S

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

In the past few years single pass amplification using rod-type fibers has become an interesting solution for high power laser sources. In the meantime, double-pass configuration has not been extendedly studied [1,2]. After theoretical [1] and experimental work [3] on mode degradation occurring in double pass, we present here new results obtained with an upgraded setup using state of the art rod-type fiber based on a distributed mode filter design (NKT Photonics aeroGAIN-ROD-PM85) [4]. We obtain up to 112 W output power, i.e. 35 dB of amplification when seeding with 30 mW of 20 ps/20 MHz/1030 nm pulses, in a preliminary unoptimized setup, pump power limited. We observe excellent beam quality and a polarization extinction ratio (PER) above 20 dB.

Original language	English
Title of host publication	Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
Publisher	IEEE
Publication date	1 Jun 2019
Article number	8871575
ISBN (Electronic)	9781728104690
DOIs	https://doi.org/10.1109/CLEOE-EQEC.2019.8871575
Publication status	Published - 1 Jun 2019
Event	2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference - ICM Centre of the Munich Trade Fair Centre., Munich, Germany Duration: 23 Jun 2019 → 27 Jun 2019 http://www.cleoeurope.org/

Conference

Conference	2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference
Location	ICM Centre of the Munich Trade Fair Centre.
Country/Territory	Germany
City	Munich
Period	23/06/2019 → 27/06/2019
Sponsor	EPS Young Minds, The European Physical Society
Internet address	http://www.cleoeurope.org/

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10.1109/CLEOE-EQEC.2019.8871575

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title = "High gain and per in double-pass rod fiber amplifier module",

abstract = "In the past few years single pass amplification using rod-type fibers has become an interesting solution for high power laser sources. In the meantime, double-pass configuration has not been extendedly studied [1,2]. After theoretical [1] and experimental work [3] on mode degradation occurring in double pass, we present here new results obtained with an upgraded setup using state of the art rod-type fiber based on a distributed mode filter design (NKT Photonics aeroGAIN-ROD-PM85) [4]. We obtain up to 112 W output power, i.e. 35 dB of amplification when seeding with 30 mW of 20 ps/20 MHz/1030 nm pulses, in a preliminary unoptimized setup, pump power limited. We observe excellent beam quality and a polarization extinction ratio (PER) above 20 dB.",

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booktitle = "Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference",

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Lupi, JF, Johansen, MM, Michieletto, M & Lægsgaard, J 2019, High gain and per in double-pass rod fiber amplifier module. in Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference., 8871575, IEEE, 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, Munich, Bavaria, Germany, 23/06/2019. https://doi.org/10.1109/CLEOE-EQEC.2019.8871575

High gain and per in double-pass rod fiber amplifier module. / Lupi, Jean François; Johansen, Mette Marie; Michieletto, Mattia et al.
Proceedings of 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference. IEEE, 2019. 8871575.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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N2 - In the past few years single pass amplification using rod-type fibers has become an interesting solution for high power laser sources. In the meantime, double-pass configuration has not been extendedly studied [1,2]. After theoretical [1] and experimental work [3] on mode degradation occurring in double pass, we present here new results obtained with an upgraded setup using state of the art rod-type fiber based on a distributed mode filter design (NKT Photonics aeroGAIN-ROD-PM85) [4]. We obtain up to 112 W output power, i.e. 35 dB of amplification when seeding with 30 mW of 20 ps/20 MHz/1030 nm pulses, in a preliminary unoptimized setup, pump power limited. We observe excellent beam quality and a polarization extinction ratio (PER) above 20 dB.

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M3 - Article in proceedings

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High gain and per in double-pass rod fiber amplifier module

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