Tunable Higher-order Orbital Angular Momentum Using Polarization-maintaining Fiber
Publication Date
7-5-2017
Document Type
Article
Organizational Units
Physics and Astronomy
Keywords
Beam shaping, Coupled mode theory, Optical angular momentum, Optical vortices, Polarization maintaining fibers, Space division multiplexing
Abstract
For the first time, to the best of our knowledge, light with orbital angular momentum (OAM) of ±2ℏ" 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;">±2ℏ±2ℏ per photon is produced using commercially available polarization-maintaining fiber with modal purity of 96%. Twist measurements demonstrate that the average orbital angular momentum can be continuously tuned between ±2ℏ" 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;">±2ℏ±2ℏ. The authors consider beams of non-integer OAM, created using the presented method, as superpositions of integer OAM states.
Publication Statement
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Recommended Citation
Brendan M. Heffernan, Robert D. Niederriter, Mark E. Siemens, and Juliet T. Gopinath, "Tunable higher-order orbital angular momentum using polarization-maintaining fiber," Opt. Lett. 42, 2683-2686 (2017) doi: 10.1364/ol.42.002683.