High efficiency frequency doubling in tellurium of 12.8 μm laser radiation

R. G. Harrison, F. A. Al-Watban, C. R. Pidgeon

Research output: Contribution to journalArticle

Abstract

Internal SHG efficiencies of 24% with signal strengths of 14 kW at 6.4 µm have been obtained by pumping tellurium with the 12.8 µm output from an optically pumped NH3 laser. The effects of free carriers generated by two photon absorption are shown to be insignificant at this operating wavelength and a value for the non-linear coefficient of d11 = 0.734 x 10-5 e.s.u. was determined. © 1977.

Original languageEnglish
Pages (from-to)385-388
Number of pages4
JournalOptics Communications
Volume23
Issue number3
Publication statusPublished - Dec 1977

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