Interferometric phase shift compensation technique for high-power, tiled-aperture coherent beam combination.
Opt Lett
; 38(8): 1277-9, 2013 Apr 15.
Article
em En
| MEDLINE
| ID: mdl-23595457
ABSTRACT
We propose a simple coherent beam combining technique for applications in high-power multichannel laser amplifier systems with tiled aperture design. Using a photodiode pair coupled with piezo-actuator mirrors, we demonstrated robust beam combining bandwidth (~1 KHz) and root mean-square deviation (~λ/25) for two beam channels. We estimate that the performance of this technique can be further enhanced in terms of operational bandwidth and phase locking accuracy. It is not limited by single beam power or channel number restrictions, does not require optical phase retrieval algorithms, or calibrations, and can be integrated into various master oscillator power amplifier architectures.
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MEDLINE
Assunto principal:
Fenômenos Ópticos
/
Interferometria
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2013
Tipo de documento:
Article