Optical soliton generation in a photorefractive Fe-doped lithium niobate crystal by a pyroelectric effect

Lusine M. Tsarukyan; Anahit M. Badalyan; Rafael Kh. Drampyan

doi:10.1117/12.2594116

1 August 2021 Optical soliton generation in a photorefractive Fe-doped lithium niobate crystal by a pyroelectric effect

Lusine M. Tsarukyan, Anahit M. Badalyan, Rafael Kh. Drampyan

Proceedings Volume 11818, Laser Beam Shaping XXI; 118180K (2021) https://doi.org/10.1117/12.2594116
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

We report the experimental results of the optical beam self-focusing and soliton formation in a photorefractive Fe doped lithium niobate (LN:Fe) crystal caused by a pyroelectric effect. The laser beam at 632.8 nm wavelength and with power of 5 mW and a 10 mm length LN:Fe crystal with the controlled temperature in the range of 10–45C are used. The time evolution of the soliton formation shows approximately two times decrease of the optical beam diameter to ~60 m with simultaneous bending of ~140 m opposite to the crystalline C+-axis. The physical model is developed to explain the experimental results. The generated curvilinear waveguiding channels in the crystal are long-living making them promising for applications.

Conference Presentation

Citation Download Citation

Lusine M. Tsarukyan, Anahit M. Badalyan, and Rafael Kh. Drampyan "Optical soliton generation in a photorefractive Fe-doped lithium niobate crystal by a pyroelectric effect", Proc. SPIE 11818, Laser Beam Shaping XXI, 118180K (1 August 2021); https://doi.org/10.1117/12.2594116

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