A general review is presented of heterojunction laser diodes suitable for efficient room temperature operation. A variety of structures are described which allow either pulsed or CW operation under operating conditions useful in optical communication systems, particularly those using glass fibers.
H. F. Lockwood,
"Heterojunction Laser Diodes for Room Temperature Operation," Optical Engineering 13(5), 135416 (1 October 1974). https://doi.org/10.1117/12.7971741