Fourth-harmonic generation of a continuous-wave CO2 laser by use of an AgGaSe2/ZnGeP2 doubly resonant device

K. Stoll, J. J. Zondy, O. Acef

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


We report a doubly resonant continuous-wave CO2 laser frequency-quadrupling device that generates 200 nW of 2.55-μm (4ω) and as much as 2 mW of 5.1-ωm (2ω) radiation out of 1.7-W fundamental radiation at 10.2 μm (ω). The quadrupling process results from two resonant cascading second-harmonic generations by use of a walk-off-compensated twin AgGaSe2 device (ω → 2ω) and a ZnGeP2 nonlinear crystal (2ω → 4ω).

Original languageEnglish
Pages (from-to)1302-1304
Number of pages3
JournalOptics Letters
Issue number17
Publication statusPublished - Sep 1 1997
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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