“Diffraction-Free,” Self-Healing Bessel Beams from Fibers

Siddharth Ramachandran; Samir Ghalmi

Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies
OSA Technical Digest (CD) (Optica Publishing Group, 2008),
paper CPDB5

“Diffraction-Free,” Self-Healing Bessel Beams from Fibers

Siddharth Ramachandran and Samir Ghalmi

Conference on Lasers and Electro-Optics 2008

San Jose, California United States
4–9 May 2008
ISBN: 978-1-55752-859-9

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CLEO Postdeadline Session II (CPDB)

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S. Ramachandran and S. Ghalmi, "“Diffraction-Free,” Self-Healing Bessel Beams from Fibers," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optica Publishing Group, 2008), paper CPDB5.

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Abstract

We demonstrate a fiber device whose output resembles ideal, infinite-energy Bessel beams. We confirm the beam's two most-intriguing properties: depth-of-focus ~32× that of Gaussians of similar size, and its ability to completely reform past obstructions.

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