Title :
Frequency Stabilization of an External-Cavity Diode Laser against HI Molecule at 1.541 μm
Author :
Pesatori, Alessandro ; Norgia, Michele ; Galzerano, Gianluca ; Bava, Elio ; Svelto, Cesare
Author_Institution :
Politecnico di Milano & CNISM-CNR, Milan
Abstract :
An External-Cavity Laser Diode was frequency locked on molecular absorption line R(3) of hydrogen iodide at 1.541 μm using the wavelength modulation technique. This molecular reference is very important in many fields like HD-WDW telecommunication system and interferometry. Preliminary measurements of the closed-loop error signal provided a relative frequency stability of 9.5 times 10-10 in a 160 Hz acquisition bandwidth.
Keywords :
frequency standards; hydrogen compounds; laser beams; laser cavity resonators; laser frequency stability; semiconductor lasers; HI molecule; acquisition bandwidth; closed loop error signal; external cavity diode laser; frequency 160 Hz; frequency locked; frequency stabilization; hydrogen iodide; molecular absorption line; molecular reference; size 1.541 μm; wavelength modulation; Absorption; Diode lasers; Frequency; Hydrogen; Laser noise; Laser stability; Laser tuning; Optical interferometry; Semiconductor lasers; Stimulated emission; diode laser; laser frequency stability; optical measurements; spectroscopy;
Conference_Titel :
Instrumentation and Measurement Technology Conference Proceedings, 2007. IMTC 2007. IEEE
Conference_Location :
Warsaw
Print_ISBN :
1-4244-0588-2
DOI :
10.1109/IMTC.2007.379058
