Zubov, F. I.3; Zhukov, A. E.3; Shernyakov, Yu M.3; Maximov, M. V.3; Kryzhanovskaya, N. V.3; Yvind, Kresten1; Semenova, Elizaveta1; Asryan, L. V.5
1 Department of Photonics Engineering, Technical University of Denmark2 Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark3 St. Petersburg Academic University4 Virginia Polytechnic Institute and State University5 Virginia Polytechnic Institute and State University
Current-voltage and light-current characteristics of quantum-well lasers have been studied at high drive currents. The introduction of asymmetric barrier layers adjacent to the active region caused a significant suppression of the nonlinearity in the light-current characteristic and an increase in the external differential efficiency. As a result, the maximum wallplug efficiency increased by 9%, while the output optical power increased by 29%.
Technical Physics Letters, 2015, Vol 41, Issue 5, p. 439-442