GaAs-AlxGa1−xAs strip-buried-heterostructure lasers with lateral-evanescent-field distributed feedback

Abstract
A GaAs‐AlxGa1−xAs strip‐buried‐heterostructure laser with distributed feedback provided through lateral‐evanescent‐field‐grating interaction is demonstrated. The diode is shown to operate stably in single transverse (fundamental) and longitudinal modes up to about 3×Ith over a temperature range 0–36 °C under pulsed operation. The light‐current characteristics of these lasers exhibit the characteristic linearity of conventional strip‐buried heterostructure lasers.