Title :
High efficiency 50 mJ/1000 Hz Ho:YLF MOPA with multi-pass amplifier
Author :
Kornev, A.F. ; Narivonchik, A.S. ; Pavlova, A.L. ; Serebryakov, V.A.
Author_Institution :
Lasers & Opt. Syst. JSC, Univ. ITMO, St. Petersburg, Russia
fDate :
June 30 2014-July 4 2014
Abstract :
Two types of Ho:YLF power amplifier were investigated: three-laser-rods single-pass amplifier of 170 mm Ho:YLF total crystal length and one-laser-rod multi-pass amplifier of 50 mm length. With both amplifiers we obtained > 40 mJ at 1000 Hz repetition rate, the overall extraction efficiency reached 60 % in multi-pass amplifier, in three-laser-rods amplifier - 45 %.
Keywords :
extinction coefficients; holmium; lithium compounds; optical parametric amplifiers; power amplifiers; solid lasers; yttrium compounds; YLF:Ho; energy 50 mJ; extraction efficiency; frequency 1000 Hz; high-efficiency holmium:yttrium lithium fluoride MOPA; one-laser-rod multipass amplifier; size 170 mm; size 50 mm; three-laser-rod single-pass amplifier; Crystals; Laser beams; Laser excitation; Optical fiber amplifiers; Power amplifiers; Power lasers; Pump lasers; Ho:YLF; extraction efficiency; multi-pass; power amplifier;
Conference_Titel :
Laser Optics, 2014 International Conference
Conference_Location :
Saint Petersburg
Print_ISBN :
978-1-4799-3884-1
DOI :
10.1109/LO.2014.6886244
