Abstract

The conversion efficiency of cross-polarized wave (XPW) generation can be improved using two separate thinner nonlinear crystals versus a single thick one, due to the evolution of the beam sizes and individual phases after the first crystal. In this paper, we present an alternative scheme in which a curved mirror is used to reimage a plane just after the BaF2 crystal for a second pass. We also develop a simple analytic model for XPW conversion that describes the origin of a nonlinear phase mismatch and nonlinear lensing for both the fundamental wave and XPW. Coupled with the numerical solution for the process and the Fresnel propagation after the first pass, we also explore the factors that affect the efficiency of saturated, seeded XPW conversion. These include the development of the on-axis relative phase difference in the first crystal and after it (during free-space propagation), mode matching, wavefront curvature difference, and crystal tuning angle. We also experimentally demonstrate that the beam quality of the XPW signal after the second pass can be improved by the reimaging.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Spatiotemporal polarization pattern obtained by interference in a single cross-polarized wave-generation crystal

Ferran Cambronero-López, Carmen Bao-Varela, and Camilo Ruiz
J. Opt. Soc. Am. B 33(8) 1740-1748 (2016)

Spatiotemporal dynamics of cross-polarized wave generation

Daniel E. Adams, Thomas A. Planchon, Jeff A. Squier, and Charles G. Durfee
Opt. Lett. 35(7) 1115-1117 (2010)

Nonlinear polarization rotation of elliptical light in cubic crystals, with application to cross-polarized wave generation

Aurélie Jullien, Olivier Albert, Gilles Chériaux, Jean Etchepare, Stoyan Kourtev, Nikolay Minkovski, and Solomon M. Saltiel
J. Opt. Soc. Am. B 22(12) 2635-2641 (2005)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (10)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription