V. V. Dyudelev, A. R. Akhmatkhanov, E. D. Greshnyakov, S. Kh. Abdulrazak, V. E. Bugrov, E. A. Kognovitskaya, V. I. Kuchinskii, V. Ya. Shur, G. S. Sokolovskii, “Generation of the second harmonic in ridge waveguides formed in periodically poled lithium niobate”, Kvantovaya Elektronika, 2018, Volume 48, Number 8,Pages <nobr>717

This article is cited in 1 paper

Nonlinear optical phenomena

Generation of the second harmonic in ridge waveguides formed in periodically poled lithium niobate

V. V. Dyudelev^a, A. R. Akhmatkhanov^b, E. D. Greshnyakov^b, S. Kh. Abdulrazak^c, V. E. Bugrov^c, E. A. Kognovitskaya^ad, V. I. Kuchinskii^a, V. Ya. Shur^b, G. S. Sokolovskii^a

^a Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg
^b Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg
^c St. Petersburg National Research University of Information Technologies, Mechanics and Optics
^d Saint Petersburg Electrotechnical University "LETI"

Abstract: Generation of the second harmonic of semiconductor laser radiation in the IR range (980–1140 nm) in ridge waveguides with a large refractive index step, formed in periodically poled nonlinear LiNbO₃ crystals, is demonstrated. Ridge waveguides have been prepared by precise cutting using a diamond microsaw. Spectral dependences of the SHG power and intensity distributions in the near field of second harmonic and pump radiations have been measured. The results obtained indicate good prospects of designing tunable laser radiation sources in the visible range due to the SHG in ridge waveguides formed in periodically poled nonlinear crystals under semiconductor laser pumping.

Keywords: SHG, periodically poled crystal, ridge waveguide, semiconductor laser.

Received: 11.04.2018
Revised: 15.06.2018