130-W picosecond green laser based on a frequency-doubled hybrid cryogenic Yb:YAG amplifier
Name
130W_ps_green_Yb_YAG.pdf
Description
KHHong_OE2009
Size
283.87 KB
Format
Adobe PDF
Checksum (MD5)
8c5302a1ef38c3fb116430419750a24b
Author(s)
Hong, Kyung-Han
Lai, Chien-Jen
Siddiqui, Aleem M.
Kaertner, Franz X.
Date Issued
September 2009
Journal
Optics Express
Publisher
Optical Society of America
Citation
Hong, Kyung-Han, Chien-Jen Lai, Aleem Siddiqui, and Franz X. Kartner, "130-W picosecond green laser based on a frequency-doubled hybrid cryogenic Yb:YAG amplifier," Opt. Express 17, Iss. 19 (September 14, 2009): 16911-16919. © 2009 OSA.
Version
Final published version
Abstract
130-W average-power picosecond green laser pulses at 514.5 nm are generated from a frequency-doubled hybrid cryogenic Yb:YAG laser. A second-harmonic conversion efficiency of 54% is achieved with a 15-mm-long noncritically phase-matched lithium triborate (LBO) crystal from a 240-W 8-ps 78-MHz pulse train at 1029 nm. The high-average-power hybrid laser system consists of a picosecond fiber chirped-pulse amplification seed source and a cryogenically-cooled double-pass Yb:YAG amplifier. The M[superscript 2] value of 2.7, measured at 77 W of second-harmonic power, demonstrates a good focusing quality. A thermal analysis shows that the longitudinal temperature gradient can be the main limiting factor in the second-harmonic efficiency. To our best knowledge, this is the highest-average-power green laser source generating picosecond pulses.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1364/OE.17.016911
