Gain calculations for unipolar semiconductor lasers

C. Y.L. Cheung, Paul Rees, K. A. Shore

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The optical gain spectra of a single triple quantum well (TQW) mid-infrared (MIR) laser element suitable for incorporation in a quantum cascade configuration are investigated. The kinetics of the carrier transport in the TQW structure are provided using a four-level rate equation model. The low gain per element at MIR frequencies illustrates the need for several such elements. Preliminary gain calculations for a near-infrared (NIR) structure are also performed.

Original languageEnglish (US)
Pages (from-to)9-13
Number of pages5
JournalIEE Proceedings: Optoelectronics
Issue number1
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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