Fiber amplification of radially and azimuthally polarized laser light

Abstract

The results on amplifying either radially or azimuthally polarized light with a fiber amplifier are presented. Experimental results reveal that more than 85% polarization purity can be retained at the output even with 40dB amplification, and that efficient conversion of the amplified light to linear polarization can be obtained.Comment: 3 pages, 4 figures, submitted to optics letter