Metal clad Pb1-xSnx Se/Pb1-x-yEuy SnxSe distributed feedback lasers

Distributed-feedback Pb_1-xSn_xSe double heterostructure stripe geometry diode lasers fabricated using molecular-beam epitaxy are discussed. These lasers operate in the CW mode up to 90 K and in the pulse mode up to 100 K. They are unique in their low tuning rate with injection current 4 cm^-1/A, and in that they withstand high CW injection currents without damage. These features are probably the result of the metal cladding layer located on top of the gratings