Changes generated by lenslike birefringent elements on the beam-quality parameter of partially polarized beams are investigated. Analytical expressions for the beam-quality gain at the output of such systems are given in terms of the second-order intensity moments of the field. Explicit conditions to improve and optimize the beam-quality parameter after propagation through these birefringent transmittances are also shown.
© 1999 Optical Society of America
G. Piquero, J. M. Movilla, P. M. Mejías, and R. Martínez-Herrero, "Beam quality of partially polarized beams propagating through lenslike birefringent elements," J. Opt. Soc. Am. A 16, 2666-2668 (1999)