Heterodyne-assisted pulsed spectroscopy with a nearly Fourier-transform limited, injection-seeded optical parametric oscillator

Mitsuhiko Kono, Kenneth G H Baldwin, Yabai He, Richard T. White, Brian J. Orr

    Research output: Contribution to journalArticlepeer-review

    29 Citations (Scopus)

    Abstract

    Narrowband pulsed 822 nm signal radiation from an injection-seeded optical parametric oscillator (OPO) system is used to record fluorescence-detected sub-Doppler two-photon excitation (TPE) spectra of atomic cesium. An optical-heterodyne technique is used to monitor the frequency chirp as well as the fluctuating central frequency of successive OPO output pulses, thereby providing a novel way to record sub-Doppler TPE spectra. The measured TPE linewidth approaches the ultimate limit imposed by the Fourier transform of the pulse’s temporal profile, demonstrating the utility of this system for pulsed laser spectroscopy applications that require the highest possible resolution.

    Original languageEnglish
    Pages (from-to)3413-3415
    Number of pages3
    JournalOptics Letters
    Volume30
    Issue number24
    DOIs
    Publication statusPublished - 15 Dec 2005

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