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  • 2013 Conference on Lasers and Electro-Optics - International Quantum Electronics Conference
  • (Optica Publishing Group, 2013),
  • paper JSII_P_3

µ-Stripes high power quantum cascade lasers arrays

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Abstract

For optical countermeasures application, the efficiency of the sources, the beam quality and the power are the crucial points. In the field of quantum cascade lasers, those three parameters give trade off values on the geometry of the laser limiting seriously the capability of the technology. For instance, one has to use ridges with width below 8µm to have a M2 suitable for DIRCM application. It limits the power to 5W up to now [1]. We will introduce a new way to improve the power of the laser while keeping a good beam quality: µ-stripes array technology (see fig 2) [2]. These buried arrays are very appealing because they offer both lateral dissipation enhancement and beam quality control in large active region lasers.

© 2013 IEEE

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