V. V. Vasil'ev, V. L. Velichansky, M. L. Gorodetskii, V. S. Il'chenko, L. Holberg, A. V. Yarovitsky, “High-coherence diode laser with optical feedback via a microcavity with ‘whispering gallery’ modes”, Kvantovaya Elektronika, 1996, Volume 23, Number 8,Pages <nobr>675

This article is cited in 22 papers

Letters to the editor

High-coherence diode laser with optical feedback via a microcavity with ‘whispering gallery’ modes

V. V. Vasil'ev^a, V. L. Velichansky^a, M. L. Gorodetskii^b, V. S. Il'chenko^b, L. Holberg^c, A. V. Yarovitsky^a

^a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
^b M. V. Lomonosov Moscow State University
^c National Institute of Standards and Technology, Boulder, USA

Abstract: Narrowing of the linewidth of a diode laser was achieved by an external high-Q microcavity, which was a fused silica sphere 370 μm in diameter. Coupling of the radiation in and out, and matching to a ‘whispering gallery’ mode of this sphere, were ensured by the method of frustrated total internal reflection. Optical feedback was provided by the Rayleigh scattering. The width of the beat-note spectra of the investigated and reference lasers did not exceed 100 kHz.

PACS: 42.55.Px, 42.60.Jf

Received: 01.01.1996