Threshold reduction through photon recycling in semiconductor lasers Journal Article uri icon



  • The threshold pump power of an AlGaAs-GaAs ridge quantum well laser diode has been reduced by 42% by recycling the spontaneous emission. An integrated photodiode absorbs the spontaneous radiation emitted by the laser diode and converts it back into electrical power. The recycling of this power results in a reduction of the electrical power required to reach the lasing threshold.

publication date

  • September 24, 1990

has restriction

  • closed

Date in CU Experts

  • April 17, 2014 3:22 AM

Full Author List

  • Gigase YB; Harder CS; Kesler MP; Meier HP; Van Zeghbroeck B

author count

  • 5

Other Profiles

International Standard Serial Number (ISSN)

  • 0003-6951

Electronic International Standard Serial Number (EISSN)

  • 1077-3118

Additional Document Info

start page

  • 1310

end page

  • 1312


  • 57


  • 13