Standard Article

Lasers, Semiconductor

  1. Nagaatsu Ogasawara1,
  2. Ryoichi Ito2

Published Online: 15 JUL 2004

DOI: 10.1002/3527600434.eap197.pub2

Encyclopedia of Applied Physics

Encyclopedia of Applied Physics

How to Cite

Ogasawara, N. and Ito, R. 2004. Lasers, Semiconductor. Encyclopedia of Applied Physics. .

Author Information

  1. 1

    University of Electro-Communications, Department of Electronics Engineering, Tokyo, Japan

  2. 2

    Meiji University, Department of Physics, Kawasaki, Japan

Publication History

  1. Published Online: 15 JUL 2004


Following a brief history of semiconductor lasers, this article describes their operation principles in relation to their device structures and materials. Their fundamental operation characteristics, including the static, spectral, and dynamic aspects, are then presented. Finally, the current state of the art in semiconductor laser technology is described by reviewing up-to-date devices incorporating new structures and new functions.


  • semiconductor laser;
  • laser diode;
  • photonics;
  • compact light source;
  • heterostructure;
  • fiber-optic telecommunications;
  • optical disk