DSpace
 

Researchspace >
General science, engineering & technology >
General science, engineering & technology >
General science, engineering & technology >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/6277

Title: High Efficient LGp0 End Pumped Nd:YAG Laser
Authors: Ngcobo, S
Forbes, A
Ait-Ameur, K
Keywords: Diffractive optical element
Laguerre Gaussian beams
Beam shaping
Issue Date: Jul-2012
Citation: Ngcobo, S, Forbes, A and Ait-Ameur, K. High Efficient LGp0 End Pumped Nd:YAG Laser. South African Institute of Physics 57th Annual Conference, Pretoria, July 2012
Series/Report no.: Workflow;9675
Abstract: The transformation of a single mode TEM00 Gaussian beam by forcing the laser to operate into a symmetrical single mode higher order TEMp0 Laguerre Gaussian beam intensity distribution is very useful in improving and substantially increasing the slope efficiency of the laser due to the increased in the fundamental mode volume of the laser. The beam shaping is achieved by using an annular binary Diffractive Optical Element whose geometry is in connection with the location of the Laguerre polynomial zeros. The Diffractive Optical Element imposes positions of p zeros of intensity distributions on the Gaussian Beam, resulting to a generation of single mode higher order TEMp0 Laguerre Gaussian Beams where there are minimum losses. It is observed that the generation of a single high order mode of TEM50 Laguerre Gaussian beam the slope efficiency is 4 times higher than that of a single TEM00 mode Gaussian Beam.
Description: South African Institute of Physics 57th Annual Conference, Pretoria, July 2012
URI: http://hdl.handle.net/10204/6277
Appears in Collections:Laser physics and technology
General science, engineering & technology

Files in This Item:

File Description SizeFormat
Ngcobo1_2012.pdf520.35 kBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback