Distributed feedback buried heterostructure diode laser

Abstract
We report room‐temperature operation of a buried heterostructure distributed feedback diode laser. The device operates in a single TE polarized longitudinal mode over a temperature range from 232 to 324 K and exhibits a temperature sensitivity of 0.72 Å/K. In comparison, the variation for a similar Fabry‐Perot diode is 3.4 Å/K.