title: Experimental study of diode pumped rubidium amplifier for single higher-order Laguerre-Gaussian modes.
abstract: In this paper, we have set up a diode laser pumped rubidium amplifier for higher-order Laguerre-Gauss (LG) modes. We experimentally realized amplification of higher-order LG modes including helical and sinusoidal LG03, LG13, LG23, and LG33modes with their high purity held. This novel scheme of generating high-purity higher-order LG beams at high laser power is preferred to the second-generation gravitational wave interferometers. To the best of our knowledge, it is the first time this scheme is formulated.
authors.forename: Ruiyao
authors.initials: R
authors.lastname: Luo
authors.forename: Lei
authors.initials: L
authors.lastname: Li
authors.forename: Wenda
authors.initials: W
authors.lastname: Cui
authors.forename: Zining
authors.initials: Z
authors.lastname: Yang
authors.forename: Hongyan
authors.initials: H
authors.lastname: Wang
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Xu