Optical frequency standard by HI Doppler-broadened absorption and external-cavity laser diode at 1.541 mu m
Academic Article
Publication Date:
2008
abstract:
An external-cavity laser diode was frequency locked on the molecular absorption line R(3) of hydrogen iodide at 1.541 mu m using the wavelength-modulation technique. Stabilization is realized by means of two feedback loops acting on two different frequency ranges. Measurements of the closed-loop error signal provided a relative frequency stability of a few parts in 10(-10) in a 50-kHz acquisition bandwidth.
Iris type:
01.01 Articolo in rivista
Keywords:
laser stability; optical spectroscopy; optical variable measuremen; semiconductor lasers; spectroscopy; STABILIZATION; MODULATION; SPECTROSCOPY
List of contributors:
Galzerano, Gianluca
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