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Thesis
Coherent Beam Combining of Ultrashort Laser Pulses.pdf
(2016)
  • Ahmad Azim, University of Central Florida
Abstract
In this thesis, CBC of ultrashort laser pulses is investigated based upon the method known as divided-pulse amplification (DPA). Active, passive and hybrid DPA have been achieved in a flashlamp-pumped Nd:YAG laser seeded from a Ti:sapphire mode-locked laser. Picosecond pulses at a repetition rate of 2.5 Hz were amplified and combined to record energy of 216 mJ with a combination efficiency of 80%. Engineering of the Nd:YAG amplifier chain for high-efficiency energy extraction is presented. In addition, phasing of actively divided pulses with a CW pilot laser co-propagating with the pulsed beam is also demonstrated. Analysis of multiple DPA configurations shows the viability of the method for a variety of different laser architectures including discussion of design restrictions.
Keywords
  • laser,
  • amplifier,
  • coherent combining
Publication Date
Spring April 7, 2016
Citation Information
Ahmad Azim. "Coherent Beam Combining of Ultrashort Laser Pulses.pdf" (2016)
Available at: http://works.bepress.com/ahmad-azim/3/