Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
Transverse mode selection in diode-pumped multimode fiber Raman lasers. / Zlobina, Ekaterina A.; Kablukov, Sergey I.; Wolf, Alexey A. et al.
Fiber Lasers and Glass Photonics: Materials through Applications. ed. / S Taccheo; JI Mackenzie; M Ferrari. Vol. 10683 SPIE, 2018. 1068334 (Proceedings of SPIE; Vol. 10683).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - Transverse mode selection in diode-pumped multimode fiber Raman lasers
AU - Zlobina, Ekaterina A.
AU - Kablukov, Sergey I.
AU - Wolf, Alexey A.
AU - Nemov, Ilya N.
AU - Dostovalov, Alexandr V.
AU - Babin, Sergey A.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - We report on the transverse mode selection in an all-fiber CW Raman laser based on a multimode graded-index fiber directly pumped by multimode laser diodes. Selection properties of special fiber Bragg gratings inscribed by UV CW or IR femtosecond radiation in the 100-μm core of graded-index fiber are experimentally compared. It is also theoretically explained why the better fundamental mode selection occurs in the femtosecond fiber Bragg grating inscribed in the fiber with lower core diameter. Fibers with core diameter of 62.5, 85 and 100 um are compared in the experiment. With core enlargement, the output power and slope efficiency increase sufficiently (from 47% to 84%) at the expense of slight beam-quality parameter increase (M2 =1.3-3).
AB - We report on the transverse mode selection in an all-fiber CW Raman laser based on a multimode graded-index fiber directly pumped by multimode laser diodes. Selection properties of special fiber Bragg gratings inscribed by UV CW or IR femtosecond radiation in the 100-μm core of graded-index fiber are experimentally compared. It is also theoretically explained why the better fundamental mode selection occurs in the femtosecond fiber Bragg grating inscribed in the fiber with lower core diameter. Fibers with core diameter of 62.5, 85 and 100 um are compared in the experiment. With core enlargement, the output power and slope efficiency increase sufficiently (from 47% to 84%) at the expense of slight beam-quality parameter increase (M2 =1.3-3).
KW - Beam clean-up
KW - Diode pumping
KW - Fiber Bragg grating
KW - Graded-index fiber
KW - Raman fiber laser
KW - Transverse mode selection.
KW - beam clean-up
KW - graded-index fiber
KW - transverse mode selection
KW - fiber Bragg grating
KW - diode pumping
UR - http://www.scopus.com/inward/record.url?scp=85049794722&partnerID=8YFLogxK
U2 - 10.1117/12.2307309
DO - 10.1117/12.2307309
M3 - Conference contribution
AN - SCOPUS:85049794722
VL - 10683
T3 - Proceedings of SPIE
BT - Fiber Lasers and Glass Photonics
A2 - Taccheo, S
A2 - Mackenzie, JI
A2 - Ferrari, M
PB - SPIE
T2 - Fiber Lasers and Glass Photonics: Materials through Applications 2018
Y2 - 22 April 2018 through 26 April 2018
ER -
ID: 17553592