Research output: Contribution to journal › Article › peer-review
Nonlinear beam self-cleaning in a coupled cavity composite laser based on multimode fiber. / Guenard, R.; Krupa, K.; Dupiol, R. et al.
In: Optics Express, Vol. 25, No. 19, 18.09.2017, p. 22219-22227.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Nonlinear beam self-cleaning in a coupled cavity composite laser based on multimode fiber
AU - Guenard, R.
AU - Krupa, K.
AU - Dupiol, R.
AU - Fabert, M.
AU - Bendahmane, A.
AU - Kermene, V.
AU - Desfarges-Berthelemot, A.
AU - Auguste, J. L.
AU - Tonello, A.
AU - Barthélémy, A.
AU - Millot, G.
AU - Wabnitz, S.
AU - Couderc, V.
N1 - Publisher Copyright: © 2017 Optical Society of America.
PY - 2017/9/18
Y1 - 2017/9/18
N2 - We study a coupled cavity laser configuration where a passively Q-switched Nd:YAG microchip laser is combined with an extended cavity, including a doped multimode fiber. For appropriate coupling levels with the extended cavity, we observed that beam self-cleaning was induced in the multimode fiber thanks to nonlinear modal coupling, leading to a quasi-single mode laser output. In the regime of beam self-cleaning, laser pulse duration was reduced from 525 to 225 ps. We also observed a Q-switched mode-locked operation, where spatial self-cleaning was accompanied by far-detuned nonlinear frequency conversion in the active multimode fiber.
AB - We study a coupled cavity laser configuration where a passively Q-switched Nd:YAG microchip laser is combined with an extended cavity, including a doped multimode fiber. For appropriate coupling levels with the extended cavity, we observed that beam self-cleaning was induced in the multimode fiber thanks to nonlinear modal coupling, leading to a quasi-single mode laser output. In the regime of beam self-cleaning, laser pulse duration was reduced from 525 to 225 ps. We also observed a Q-switched mode-locked operation, where spatial self-cleaning was accompanied by far-detuned nonlinear frequency conversion in the active multimode fiber.
KW - MODE OPERATION
KW - AMPLIFIER
UR - http://www.scopus.com/inward/record.url?scp=85029433858&partnerID=8YFLogxK
U2 - 10.1364/OE.25.022219
DO - 10.1364/OE.25.022219
M3 - Article
C2 - 29041536
AN - SCOPUS:85029433858
VL - 25
SP - 22219
EP - 22227
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 19
ER -
ID: 9910932