Lamb-dip-locked quantum cascade laser for comb-referenced IR absolute frequency measurements.

S, Borri; S, Bartalini; I, Galli; P, Cancio; G, Giusfredi; D, Mazzotti; A, Castrillo; L, Gianfrani; Natale P, De

doi:10.1364/oe.16.011637

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Lamb-dip-locked quantum cascade laser for comb-referenced IR absolute frequency measurements.

Shared by NobleBlocks on Jul 1, 2008 • 12:00 AM UTC

Authors:

Borri S

Bartalini S

Galli I

Abstract

The frequency of a DFB quantum cascade laser (QCL) emitting at 4.3 microm has been long-term stabilized to the Lamb-dip center of a CO2 ro-vibrational transition by means of first-derivative locking to the saturated absorption signal. Thanks to the non-linear sum-frequency generation (SFG) process w...

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