Kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition

In this paper, multi-phase coded signal (MPCS) modulation is demonstrated on high power narrow-linewidth polarization-maintained all-fiber amplifier for the first time. This technique is shown for stimulated Brillouin scattering (SBS) effect management and leads to as high as 737 W SBS threshold wit...

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Autores principales:	Wenchang Lai, Pengfei Ma, Jiaxin Song, Shuai Ren, Wei Liu, Pu Zhou
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Fiber laser Narrow linewidth High power Stimulated Brillouin scattering Physics QC1-999
Acceso en línea:	https://doaj.org/article/cc0e330d614d4786a4dfa25ba327b185
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spelling	oai:doaj.org-article:cc0e330d614d4786a4dfa25ba327b1852021-11-28T04:31:09ZKilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition2211-379710.1016/j.rinp.2021.105050https://doaj.org/article/cc0e330d614d4786a4dfa25ba327b1852021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2211379721010391https://doaj.org/toc/2211-3797In this paper, multi-phase coded signal (MPCS) modulation is demonstrated on high power narrow-linewidth polarization-maintained all-fiber amplifier for the first time. This technique is shown for stimulated Brillouin scattering (SBS) effect management and leads to as high as 737 W SBS threshold with FWHM linewidth of 4.6 GHz in single-tone 1064 nm polarization-maintained 20/400 μm fiber amplifier system. Further, in conjunction with laser gain competition where another signal laser operating at 1045 nm is applied, the 1064 nm output power could increase to 1023 W, at which the polarization extinction ratio (PER) is 13.3 dB and the output beam quality is measured to be Mx2/My2 = 1.29/1.28. This power scaling result provides a feasible method for linewidth controlling in high power fiber amplifier, which represents significance for high-power coherently and spectrally beam combining system.Wenchang LaiPengfei MaJiaxin SongShuai RenWei LiuPu ZhouElsevierarticleFiber laserNarrow linewidthHigh powerStimulated Brillouin scatteringPhysicsQC1-999ENResults in Physics, Vol 31, Iss , Pp 105050- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Fiber laser Narrow linewidth High power Stimulated Brillouin scattering Physics QC1-999
spellingShingle	Fiber laser Narrow linewidth High power Stimulated Brillouin scattering Physics QC1-999 Wenchang Lai Pengfei Ma Jiaxin Song Shuai Ren Wei Liu Pu Zhou Kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition
description	In this paper, multi-phase coded signal (MPCS) modulation is demonstrated on high power narrow-linewidth polarization-maintained all-fiber amplifier for the first time. This technique is shown for stimulated Brillouin scattering (SBS) effect management and leads to as high as 737 W SBS threshold with FWHM linewidth of 4.6 GHz in single-tone 1064 nm polarization-maintained 20/400 μm fiber amplifier system. Further, in conjunction with laser gain competition where another signal laser operating at 1045 nm is applied, the 1064 nm output power could increase to 1023 W, at which the polarization extinction ratio (PER) is 13.3 dB and the output beam quality is measured to be Mx2/My2 = 1.29/1.28. This power scaling result provides a feasible method for linewidth controlling in high power fiber amplifier, which represents significance for high-power coherently and spectrally beam combining system.
format	article
author	Wenchang Lai Pengfei Ma Jiaxin Song Shuai Ren Wei Liu Pu Zhou
author_facet	Wenchang Lai Pengfei Ma Jiaxin Song Shuai Ren Wei Liu Pu Zhou
author_sort	Wenchang Lai
title	Kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition
title_short	Kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition
title_full	Kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition
title_fullStr	Kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition
title_full_unstemmed	Kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition
title_sort	kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/cc0e330d614d4786a4dfa25ba327b185
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Kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition

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