Continuously Tunable Orbital Angular Momentum Generation Using a Polarization-maintaining Fiber
Publication Date
7-2016
Document Type
Article
Organizational Units
College of Natual Science and Mathematics, Physics and Astronomy
Keywords
Light beams, Liquid crystal modulators, Polarization maintaining fibers, Spatial light modulators, Vector beams
Abstract
We demonstrate the generation of orbital angular momentum (OAM) in a two-mode polarization-maintaining (PM) optical fiber. We combine two linearly polarized modes of PM fiber to generate linearly polarized optical vortex beams with OAM. The average OAM can be finely varied by changing the phase between modes. We have quantitatively measured the resulting OAM to vary between ±1ℏ" role="presentation" style="box-sizing: border-box; display: inline; font-size: 12.88px; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">±1ℏ±1ℏ per photon while varying the relative phase between the LP11e" role="presentation" style="box-sizing: border-box; display: inline; font-size: 12.88px; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">LP11𝑒LP11e- and LP11o" role="presentation" style="box-sizing: border-box; display: inline; font-size: 12.88px; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;">LP11𝑜LP11o-like fiber modes. The modal purity is 97%.
Publication Statement
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Recommended Citation
Robert D. Niederriter, Mark E. Siemens, and Juliet T. Gopinath, "Continuously tunable orbital angular momentum generation using a polarization-maintaining fiber," Opt. Lett. 41, 3213-3216 (2016) doi: 10.1364/ol.41.003213.