@inproceedings{8b03955e7ba840b4a0ecd7d57a056920,
title = "Diode-pumped all-fiber Raman lasers with high beam quality",
abstract = "We report on the first all-fiber CW Raman laser based on a multimode graded-index fiber directly pumped by multimode laser diodes. A joint action of Raman clean-up effect and mode-selection properties of special fiber Bragg gratings inscribed in the central part of fiber core, results in high-efficiency conversion of a multimode (M2∼26) pump at 915 nm into a high-quality output beam at 954 nm. Fibers with core diameter of 62.5, 85 and 100 um are compared. With core enlargement, the output power and slope efficiency increase sufficiently (from 47% to 84%) at the expense of slight beam-quality parameter reduction (M2=1.3-3).",
keywords = "beam clean-up, diode pumping, fiber Bragg grating, fiber laser, graded-index fiber, Raman laser, CW",
author = "Babin, {Sergey A.} and Zlobina, {Ekaterina A.} and Kablukov, {Sergey I.} and Wolf, {Alexey A.} and Nemov, {Ilya N.} and Dostovalov, {Alexandr V.} and Tyrtyshnyy, {V. A.} and Myasnikov, {D. V.}",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Fiber Lasers XV: Technology and Systems 2018 ; Conference date: 29-01-2018 Through 01-02-2018",
year = "2018",
month = jan,
day = "1",
doi = "10.1117/12.2289862",
language = "English",
isbn = "978-1-5106-1509-0",
volume = "10512",
series = "Proceedings of SPIE",
publisher = "SPIE",
editor = "Hartl and AL Carter",
booktitle = "FIBER LASERS XV: TECHNOLOGY AND SYSTEMS",
address = "United States",
}