Propagation of Gaussian beam in self-defocusing photovoltaic photorefractive nonlinear crystal of LiNbO3:Fe

Dayun Wang; Simin Liu; Zhaohong Liu; Ru Guo; Chunfu Huang; Nan Zhu; Tao Song; Peide Zhao; Yong Zhang

doi:10.1117/12.823888

18 February 2009 Propagation of Gaussian beam in self-defocusing photovoltaic photorefractive nonlinear crystal of LiNbO₃:Fe

Dayun Wang, Simin Liu, Zhaohong Liu, Ru Guo, Chunfu Huang, Nan Zhu, Tao Song, Peide Zhao, Yong Zhang

Author Affiliations +

Proceedings Volume 7276, Photonics and Optoelectronics Meetings (POEM) 2008: Laser Technology and Applications; 72761M (2009) https://doi.org/10.1117/12.823888
Event: Photonics and Optoelectronics Meetings, 2008, Wuhan, China

Abstract

We investigate experimentally the propagation of Gaussian beam in self-defocusing photovoltaic photorefractive nonlinear crystal of iron-doped lithium niobate. In steady-state, the propagating beam in the low-refractive-index optical channel written by the beam itself is affected mostly by linear diffraction and anisotropic divergence of the saturated negative lenslike effect. And the latter affects the incident beam with convergent wavefront much more than that with divergent wavefront. In the case of the incident beam with the convergent wavefront, the angular width of the spatial spectrum of the output beam decreases along with the size of the output beam. We believe that the phase-type spatial filtering of the funnel-type low-refractive-index optical channel written by the propagating beam itself causes the results.

Citation Download Citation

Dayun Wang, Simin Liu, Zhaohong Liu, Ru Guo, Chunfu Huang, Nan Zhu, Tao Song, Peide Zhao, and Yong Zhang "Propagation of Gaussian beam in self-defocusing photovoltaic photorefractive nonlinear crystal of LiNbO₃:Fe", Proc. SPIE 7276, Photonics and Optoelectronics Meetings (POEM) 2008: Laser Technology and Applications, 72761M (18 February 2009); https://doi.org/10.1117/12.823888

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available