Scientific Results

Frequency locking of tunable Er:Yb microlasers to absorption lines of (C2H2)-C-13 in the 1540-1550 nm wavelength interval

Year: 1997

Authors: Laporta P., Taccheo S., Longhi S., Svelto C., De Natale P.

Autors Affiliation: Centro di Elettronica Quantistica e Strumentazione Elettronica del CNR, Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy;
Dipartimento di Elettronica e Informazione, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy;
Istituto Nazionale di Ottica, sez. di Napoli c/o Dip. Scienze Fisiche, Mostra d’Oltremare Pad. 19, 80125 Napoli, Italy

Abstract: We demonstrate frequency stabilization of widely tunable erbium-ytterbium microlasers in the wavelength interval between 1540 and 1550 nm by locking the oscillators to nine different absorption lines of (C2H2)-C-13, spaced by approximately 150 GHz. Frequency stability is evaluated by measuring the two-sample Allan variance of the heterodyne beat-note signal between two identical lasers. The square root of the Allan variance is 7 x 10(-10) for integration times between 10(-3) and 10(2) s. (C) 1997 American Institute of Physics.


Volume: 71 (19)      Pages from: 2731  to: 2733

KeyWords: Frequency stability; Heterodyning; Light absorption; Optical pumping; Solid state lasers; Spectrum analysis; Spurious signal noise; Time domain analysis, Allan variance; Frequency locking; Heterodyne beat note signal; Microlasers, Frequency division multiplexing
DOI: 10.1063/1.120120

Citations: 14
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