The optimum pumping power for optically pumped FIR lasers

Lin Yikun*, Wen Yumin, Chen Danli, Hu Jinglu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The relations between the output power of optically pumped FIR laser and the pumping power were studied theoretically by solving the density matrix equation of four-level system by means of the matrix signal flow graph method. The output power density of FIR laser was calculated by iteration method. A set of curves of output FIR power density against pumping power has been obtained. It has found that every of each curve has a maximum point of which the position is different for different pumping detuning. According the these results we predicted that there would exist an optimum pumping power density for an optically pumped FIR laser with certain pumping detuning. This theoretical results would help us to design the optically pumped FIR lasers.

Original languageEnglish
Pages (from-to)1061-1074
Number of pages14
JournalInternational Journal of Infrared and Millimeter Waves
Issue number10
Publication statusPublished - 1985 Oct 1
Externally publishedYes


  • Multiphoton processes
  • Nonlinear optics
  • Optically pumped FIR lasers
  • Submillimeter wave laser

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)
  • Electrical and Electronic Engineering


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