文献类型： 会议论文

第一作者： Antoine Godard

作者： Antoine Godard ¹ ; Myriam Raybaut ¹ ; Thomas Schmid ¹ ; Michel Lefebvre ¹ ; Anne-Marie Michel ² ; Christophe Oudart ² ; Sergio Teixeira ² ; Michel Nalat ² ;

作者机构： 1.ONERA - the French aerospace lab, Chemin de la Huniere, F-91761 Palaiseau cedex, France

2.SAGEM, Groupe SAFRAN, 178 rue de Paris, F-91344 Massy cedex, France

关键词： infrared;laser;optical parametric oscillator;countermeasure;thermal effects

会议名称： SPIE Conference on Technologies for Optical Countermeasures

主办单位：

页码： 78360G:1-78360G:7

摘要： We report on the development of a compact frequency conversion module (FCM) devoted to IR countermeasures. Several spectral lines are emitted simultaneously by the use of optical parametric oscillators (OPOs) pumped by a high repetition rate near-IR pulsed laser. A special attention has been paid on the optimization and the miniaturization of the FCM optomechanical design. The proposed compact design increases the alignment stability of the OPO cavities and in the same time facilitates its integration. Moreover, we have developed two-zone temperature controlled ovens enabling thermal management of the periodically poled nonlinear crystals. With proper adjustments of the applied temperature gradient, we have demonstrated that a significant improvement (more than 30 %) of the conversion efficiency can be obtained.

分类号： N-532