Photonics Technology Letters (IEEE), Institute of Electrical and Electronics Engineers (IEEE), 2000/12/3/263-265
Subjects
intersubband lasers
Abstract
We demonstrate a quantum cascade laser with a novel injection concept. Periodic insertion of silicon- and beryllium-doped layers are used to control locally the internal electric field in the active region. This concept is demonstrated experimentally using an active region based on a periodic superlattice.
