Patent ID: 9160136
Filing Date: 2015-10-13
Classification: H01S

Abstract:
1. A laser amplifier, comprising: an internal amplifier includes a first amplified output laser, said first amplified output laser includes a beam having a cross-sectional area; a half waveplate aligned with said beam of said first amplified output laser; an external diffusion amplifier, said external diffusion amplifier includes a diffusion bonded gain medium, said diffusion bonded gain medium has a polarization, and, said diffusion bonded gain medium has a cross-sectional area; said external diffusion amplifier aligned with said half waveplate, said beam of said first amplified output laser aligned with said diffusion bonded gain medium of said external diffusion amplifier; said diffusion bonded gain medium of said external diffusion amplifier being side pumped; an adjustable lens for expanding said beam of said first amplified output laser; said beam of said first amplified output laser passes into and through said lens expanding said beam, said expanded beam of said first amplified output laser passes into and through said half waveplate; said adjustable lens matching said cross-sectional area of said beam of said first amplified output laser to said cross-sectional area of said diffusion bonded gain medium; and, said half waveplate optimizes the polarization of said beam to said polarization of said diffusion bonded gain medium; and, said first amplified output laser being further amplified by said external diffusion amplifier and exits as a second amplified laser output.