Research output: Contribution to journal › Article › peer-review
Generating high-quality beam in a multimode LD-pumped all-fiber Raman laser. / Zlobina, Ekaterina A.; Kablukov, Sergey I.; Wolf, Alexey A. et al.
In: Optics Express, Vol. 25, No. 11, 29.05.2017, p. 12581-12587.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Generating high-quality beam in a multimode LD-pumped all-fiber Raman laser
AU - Zlobina, Ekaterina A.
AU - Kablukov, Sergey I.
AU - Wolf, Alexey A.
AU - Nemov, Ilya N.
AU - Dostovalov, Alexander V.
AU - Tyrtyshnyy, Valentin A.
AU - Myasnikov, Daniil V.
AU - Babin, Sergey A.
PY - 2017/5/29
Y1 - 2017/5/29
N2 - We report on the first demonstration of an all-fiber CW Raman laser based on a multimode graded-index fiber directly pumped by multimode fiber-coupled 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 the graded-index fiber core, results in high-efficiency conversion of a multimode (M2∼26) pump at 915 nm into a high-quality (M2∼2.6) output beam at 954 nm. About 50 W output power has been obtained with slope efficiency of 67%. The proposed development and integration of key multimode fiber technologies opens the door to new type of LD-pumped high-power high-beam-quality fiber lasers that may operate at almost any wavelength defined by available LDs.
AB - We report on the first demonstration of an all-fiber CW Raman laser based on a multimode graded-index fiber directly pumped by multimode fiber-coupled 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 the graded-index fiber core, results in high-efficiency conversion of a multimode (M2∼26) pump at 915 nm into a high-quality (M2∼2.6) output beam at 954 nm. About 50 W output power has been obtained with slope efficiency of 67%. The proposed development and integration of key multimode fiber technologies opens the door to new type of LD-pumped high-power high-beam-quality fiber lasers that may operate at almost any wavelength defined by available LDs.
KW - HIGH-EFFICIENCY
KW - POWER
KW - DIODE
KW - CW
UR - http://www.scopus.com/inward/record.url?scp=85020044041&partnerID=8YFLogxK
U2 - 10.1364/OE.25.012581
DO - 10.1364/OE.25.012581
M3 - Article
C2 - 28786613
AN - SCOPUS:85020044041
VL - 25
SP - 12581
EP - 12587
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 11
ER -
ID: 10186948