Efficiency of different methods of extra-cavity second harmonic generation of continuous wave single-frequency radiation

Sergey Khripunov, Sergey Kobtsev, Daba Radnatarov

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

This work presents for the first time to the best of our knowledge a comparative efficiency analysis among various techniques of extra-cavity second harmonic generation (SHG) of continuous-wave single-frequency radiation in nonperiodically poled nonlinear crystals within a broad range of power levels. Efficiency of nonlinear radiation transformation at powers from 1 W to 10 kW was studied in three different configurations: with an external power-enhancement cavity and without the cavity in the case of single and double radiation pass through a nonlinear crystal. It is demonstrated that at power levels exceeding 1 kW, the efficiencies of methods with and without external power-enhancement cavities become comparable, whereas at even higher powers, SHG by a single or double pass through a nonlinear crystal becomes preferable because of the relatively high efficiency of nonlinear transformation and fairly simple implementation.

Original languageEnglish
Pages (from-to)502-506
Number of pages5
JournalApplied Optics
Volume55
Issue number3
DOIs
Publication statusPublished - 20 Jan 2016

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