This article is cited in 20 papers

Optical frequency standards

An analog+digital phase-frequency detector for phase locking of a diode laser to an optical frequency comb

N. Beverini^a, M. Prevedelli^b, F. Sorrentino^a, B. N. Nyushkov^a, A. Ruffini<sup>a

a</sup> INFM and Dipartimento di Fisica "E. Fermi", Italy
^b Dipartimento di Fisica Chimica ed Inorganica, Italy

Abstract: Optical phase locking of a diode laser to a mode of a femtosecond optical comb has been achieved with a system that combines the advantages of analog and digital phase detectors. Low noise and fast response are combined with a broad phase range and lock reliability. Details of the circuit are illustrated, and properties of different phase detectors in view of optical frequency measurements are discussed.

PACS: 42.62.Eh, 42.65.Re, 42.55.Px

Received: 09.01.2004

 English version: Quantum Electronics, 2004, 34:6, 559–564

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