Photonic crystal fiber technology for monolithic single-mode large mode area all-solid amplifier

被引：1

作者：

Christensen, Simon L. ^{[1
]}

Papior, Sidsel R. ^{[2
]}

Johansen, Mette M. ^{[2
]}

Hauge, Jakob M. ^{[1
]}

Weirich, Johannes ^{[2
]}

Jakobsen, Christian ^{[2
]}

Michieletto, Mattia ^{[2
]}

Bondu, Magalie ^{[2
]}

Triches, Marco ^{[2
]}

Alkeskjold, Thomas T. ^{[2
]}

Laegsgaard, Jesper ^{[1
]}

机构：

[1] Tech Univ Denmark, DTU Foton, DK-2800 Lyngby, Denmark

[2] NKT Photon AS, Blokken 84, DK-3460 Birkerod, Denmark

来源：

FIBER LASERS XVI: TECHNOLOGY AND SYSTEMS | 2019年 / 10897卷

关键词：

Photonic crystal fiber; fiber amplifier; ultrafast; monolithic; single-mode; all-solid fiber; high power; large mode-area;

D O I：

10.1117/12.2506995

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, an all-solid Ytterbium doped double-clad single-mode (SM) large-mode-area (LMA) photonic crystal fiber (PCF) is characterized in a monolithic amplifier setup. The characterized all-solid PCF combines the SM operation of LMA PCFs while maintaining simple splicing of all-solid fibers. The fiber has been tested in a pulsed monolithic forward pumped amplifier system achieving excellent modal properties. The fiber is polarization maintaining and has a mode field diameter of approximately 24 [tm. At optimal fiber length the output signal power of the amplifier was measured to 43 W limited by pump power with an optical to optical efficiency of 61 %. Polarization extinction ratios (PER) above 18 dB was observed for all fiber lengths. Simple splicing with splice losses < 0.2 dB and maintained polarization are reported using a standard Fujikura fusion splicer.

引用

页数：7

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