TY - JOUR
T1 - An actively Q-switched fiber laser with cylindrical vector beam generation
AU - Zhang, Jiaojiao
AU - Zhang, Zuxing
AU - Cai, Yu
AU - Wan, Hongdan
AU - Wang, Zhiqiang
AU - Zhang, Lin
PY - 2018/2/14
Y1 - 2018/2/14
N2 - We demonstrate an actively Q-switched fiber laser with cylindrical vector beam (CVB) emission using a few-mode fiber Bragg grating as the mode selection component and an acousto-optic modulator to achieve Q-switching. To the best of our knowledge, this is the first such demonstration. Using a linear cavity configuration, an actively Q-switched CVB with a pulse width of about 64 ns, a pulse energy of 4.25 µJ and a repetition rate of 20 kHz has been obtained. Moreover, by tuning the polarization controllers radially and azimuthally, polarized Q-switched beams can be excited separately with a polarization purity of >94.5%. This compact Q-switched fiber laser with ns CVB pulse output could find potential applications in the field of material processing, nonlinear optics and so on.
AB - We demonstrate an actively Q-switched fiber laser with cylindrical vector beam (CVB) emission using a few-mode fiber Bragg grating as the mode selection component and an acousto-optic modulator to achieve Q-switching. To the best of our knowledge, this is the first such demonstration. Using a linear cavity configuration, an actively Q-switched CVB with a pulse width of about 64 ns, a pulse energy of 4.25 µJ and a repetition rate of 20 kHz has been obtained. Moreover, by tuning the polarization controllers radially and azimuthally, polarized Q-switched beams can be excited separately with a polarization purity of >94.5%. This compact Q-switched fiber laser with ns CVB pulse output could find potential applications in the field of material processing, nonlinear optics and so on.
KW - Q-switching, cylindrical vector beam, fiber Bragg grating
UR - http://iopscience.iop.org/article/10.1088/1612-202X/aaa335
U2 - 10.1088/1612-202X/aaa335
DO - 10.1088/1612-202X/aaa335
M3 - Article
SN - 1612-2011
VL - 15
SP - 035107
JO - Laser Physics Letters
JF - Laser Physics Letters
IS - 3
ER -