@inproceedings{36ae3a8ce1c3432a9536f9956d4ba4ad,
title = "Large-mode-area double clad ytterbium-doped tapered fiber with circular birefringence",
abstract = "We demonstrated, for the first time to our best knowledge, an active tapered double clad fiber with circular birefringence and 35 μm core diameter. The output radiation had perfect beam quality (M2=1.18/1.1) and linearly polarized light with 15 dB of PER. The developed double clad active fiber was investigated for amplification of picosecond pulses in allfiber MOPA system. The MOPA system delivered 50 ps pulses with 55 W of the average power revealed 34.4 dB gain of the booster amplifier.",
keywords = "polarization, ytterbium, picosecond phenomena, birefringence, fiber amplifier, fiber laser",
author = "Joona Rissanen and Andrei Fedotov and Teppo Noronen and Regina Gumenyuk and Yuri Chamorovskii and Alexander Kolosovskii and Victor Voloshin and Igor Vorobev and Maxim Odnoblyudov and Valery Filippov",
note = "jufoid=71479 EXT={"}Noronen, Teppo{"}; SPIE Photonics West 2019 ; Conference date: 02-02-2019 Through 08-02-2019",
year = "2019",
month = mar,
day = "7",
doi = "10.1117/12.2508811",
language = "English",
series = "Proceedings of SPIE",
publisher = "SPIE-INT SOC OPTICAL ENGINEERING",
editor = "{ Carter}, {Adrian L.} and Liang Dong",
booktitle = "Proceedings of SPIE",
}