High power spatial single-mode quantum cascade lasers at 8.9 μm
Sebastien Forget, Clement Faugeras, Jean Yves Bengloan, Michel Calligaro, Olivier Parillaud, Marcella Giovannini, Jerome Faist, Carlo Sirtori
Abstract
High performance of InP-based quantum cascade lasers emitting at λ ~ 9μm are reported. Thick electroplated gold layer was deposited on top of the laser to improve heat dissipation. With one facet high reflection coated, the devices produce a maximum output power of 175mW at 40% duty cycle at room temperature and continuous-wave operation up to 278K.
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