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Opt Lett. 2013 Apr 15;38(8):1191-3. doi: 10.1364/OL.38.001191.

Carrier envelope offset frequency of a doubly resonant, nondegenerate, mid-infrared GaAs optical parametric oscillator.

Optics letters

Kevin F Lee, Jie Jiang, C Mohr, J Bethge, M E Fermann, Nick Leindecker, Konstantin L Vodopyanov, Peter G Schunemann, I Hartl

Affiliations

  1. IMRA America, Inc., 1044 Woodridge Avenue, Ann Arbor, Michigan 48105, USA. [email protected]

PMID: 23595427 DOI: 10.1364/OL.38.001191

Abstract

We measure the carrier envelope offset (CEO) frequency of the mid-infrared frequency comb (wavelength tunable between 3 and 6 μm) from a doubly resonant nondegenerate synchronously pumped optical parametric oscillator (SPOPO) as a function of the CEO frequency of the Tm-fiber pump laser. We show that the CEO frequency of the SPOPO signal wave is a linear function of the CEO frequency of the pump laser, with a slope determined by the signal to pump center-frequency ratio.

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