A zig-zag geometry Nd:YAG slab amplifier has been tested in a phase-conjugated master oscillator power amplifier (PC MOPA) configuration. The slab amplifier has 0.6 × 2 × 15-cm dimensions, is flashlamp pumped from both sides, and uses diffuse reflectors to provide relatively uniform gain. The amount of energy stored is typically 1.5 J/pulse, and the repetition rate can be as high as 40 Hz (power supply limited). Figure 1 shows the schematic layout of the PC MOPA. A commercial, injection-seeded Quantel laser is used as the master oscillator. The master oscillator pulse is spatially filtered, expanded, beam shaped, and injected into the amplifier. The amplified beam is phase conjugated in a high purity N2 cell, which operates at approximately 1000 psi. The phase-conjugated beam propagates through the amplifier where most of the aberrations are corrected and is extracted by polarization-rotating techniques. Diagnostics include stimulated Brillouin scattering (SBS) reflectivity and fidelity and extracted energy and beam quality.

© 1991 Optical Society of America

PDF Article
More Like This
One Joule Per Pulse, 100 Watt, Diode-Pumped, Near Diffraction Limited, Phase Conjugated, Nd:YAG Master Oscillator Power Amplifier

Randall J. St. Pierre, Hagop Injeyan, Rodger C. Hilyard, Mark E. Weber, Jacqueline G. Berg, Michael G. Wickham, Carolyn S. Hoefer, and Jason P. Machan
DL1 Advanced Solid State Lasers (ASSL) 1993

High Brightness, End-Pumped, Conduction Cooled Nd:YAG Zig-Zag Slab Laser Architecture

Stephen Palese, Joseph Harkenrider, William Long, Frank Chui, David Hoffmaster, William Burt, Hagop Injeyan, George Conway, Glen Truong, and Francis Tapos
TuC4 Advanced Solid State Lasers (ASSL) 2001


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription