20 W of continuous-wave sodium D2 resonance radiation from sum-frequency generation with injection-locked lasers.
Opt Lett
; 28(22): 2219-21, 2003 Nov 15.
Article
em En
| MEDLINE
| ID: mdl-14649947
ABSTRACT
A 20-W all-solid-state continuous-wave single-frequency source tuned to the sodium D2a line at 589.159 nm has been developed for adaptive optical systems. This source is based on sum-frequency mixing two injection-locked NdYAG lasers in lithium triborate in a doubly resonant external cavity. Injection locking the NdYAG lasers not only ensures single-frequency operation but also allows the use of a single rf local oscillator for Pound-Drever-Hall locking both the injection-slave and the sum-frequency cavities. We observe power-conversion efficiencies in excess of 55% and a linearly polarized diffraction-limited output tunable across the sodium D2 line (589.156 to 589.160 nm) with no change in output power and with high amplitude and pointing stability.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2003
Tipo de documento:
Article