An all-diode-laser-based, dual-cavity AgGaS2 cw difference-frequency source for the 9-11 μm range

D. Lee, T. Kaing, J. J. Zondy

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A long-wavelength cw difference-frequency source based on the use of low-power AlGaAs diode lasers and a critically phase-matched (CPM) silver thiogallate (AgGaS2) nonlinear crystal is reported. The device uses a standing-wave dual-resonator scheme to enhance both near-infrared lasers. For 7 mW of 778.2-nm and 275 mW of 842.5-nm input powers, 4O nW of 10.2-μm radiation is generated by a preliminary setup. A μW-level range output power is expected after optimization of the device optical components. This compact tunable source will allow Fabry-Pérot high-resolution Doppler-free spectroscopy of spherical molecules, such as OsO4 or SF6, in the 9-11 μm range as an alternative source to frequency-stabilized CO2 lasers.

Original languageEnglish
Pages (from-to)363-367
Number of pages5
JournalApplied Physics B: Lasers and Optics
Volume67
Issue number3
Publication statusPublished - 1998
Externally publishedYes

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semiconductor lasers
cavities
standing waves
infrared lasers
aluminum gallium arsenides
resonators
silver
optimization
output
high resolution
radiation
wavelengths
spectroscopy
crystals
lasers
molecules

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Atomic and Molecular Physics, and Optics

Cite this

An all-diode-laser-based, dual-cavity AgGaS2 cw difference-frequency source for the 9-11 μm range. / Lee, D.; Kaing, T.; Zondy, J. J.

In: Applied Physics B: Lasers and Optics, Vol. 67, No. 3, 1998, p. 363-367.

Research output: Contribution to journalArticle

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