We report a core-pumped all-normal dispersion mode-locked Nd-doped fiber laser at 910 and 935 nm. The pulse is compressed to 198 fs, and the pulse energy is 1.3 nJ. The slope efficiency is more than 14%. This laser is tested as the optical source for the two-photon fluorescence imaging of pollen.
© 2014 Optical Society of America
Lasers and Laser Optics
Original Manuscript: April 14, 2014
Revised Manuscript: June 23, 2014
Manuscript Accepted: June 23, 2014
Published: July 23, 2014
Xiang Gao, Weijian Zong, Bingying Chen, Jian Zhang, Chen Li, Yizhou Liu, Aimin Wang, Yanrong Song, and Zhigang Zhang, "Core-pumped femtosecond Nd:fiber laser at 910 and 935 nm," Opt. Lett. 39, 4404-4407 (2014)