Abstract
We have coupled an upright HG mode into a fiber-optic waveguide and used the application of stress to generate a Laguerre-Gaussian laser mode. We have generalized previous results by McGloin et al. by using a polarized input beam, a true 3-mode fiber and by applying the stress on a stripped piece of the optical waveguide. These generalizations are necessary in order to perform quantum information experiments and obtain reliable information on the stress imposed on the optical fiber.
Highlights
The production of Laguerre-Gaussian (LG) laser modes has again attracted considerable interest [1]
We have generalized previous results by McGloin et al by using a polarized input beam, a true 3-mode fiber and by applying the stress on a stripped piece of the optical waveguide. These generalizations are necessary in order to perform quantum information experiments and obtain reliable information on the stress imposed on the optical fiber
Orbital angular momentum is of special interest for quantum information processing since different Fourier components of LG beams have been shown to be independently addressable [6]
Summary
The production of Laguerre-Gaussian (LG) laser modes has again attracted considerable interest [1]. Orbital angular momentum is of special interest for quantum information processing since different Fourier components of LG beams have been shown to be independently addressable [6]. Their importance for producing heralded single photons in arbitrary spatial modes has been addressed [7]. The fourth type of converter uses a stressed fiber-optic waveguide and an HG mode input laser [1]. We will illustrate the possibility to produce Laguerre-Gaussian laser modes with heralding photons in the second part of this report
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