Construction and characterization of a CO2 axicon-based Bessel-Gauss resonator

Martha B. Alvarez-Elizondo; Manuel Guizar-Sicairos; Rodolfo Rodriguez-Masegosa; Julio Cesar Gutierrez-Vega

doi:10.1117/12.589652

12 April 2005 Construction and characterization of a CO₂ axicon-based Bessel-Gauss resonator

Martha B. Alvarez-Elizondo, Manuel Guizar-Sicairos, Rodolfo Rodriguez-Masegosa, Julio Cesar Gutierrez-Vega

Proceedings Volume 5708, Laser Resonators and Beam Control VIII; (2005) https://doi.org/10.1117/12.589652
Event: Lasers and Applications in Science and Engineering, 2005, San Jose, California, United States

Abstract

We report the generation of Bessel-Gauss beams using a CO₂ laser resonator. The cavity is composed by a plane output mirror and a total reflective axicon, this configuration had been studied previously by Gutierrez-Vega et al [J.Opt.Soc.Am.A 20, 2113-22 (2003)]. Bessel-Gauss beams are produced directly from the cavity. The use of a reflective axicon instead of a refractive one results in reduction of surface-induced aberrations, minimizing absorption and increasing the non-diffracting distance. This results in a higher power non-diffracting laser beam with potential scientific and industrial applications. In order to characterize the resonator, we have obtained its output transverse intensity distribution. Additionally, we have numerically and experimentally studied the effects of mirror tilt on the output transverse mode structure. We have made numerical simulations of the misaligned resonator modes based on Bowers’s method [Appl. Opt. 31, 1185-98 (1992)]. Direct comparison of numerical and experimental results allow us to estimate the diffractive losses of the modes on the misaligned cavity and their dependence on the aligned bare cavity eigenmodes, thus providing valuable information of the output power dependence on mirror misalignment. Relevant experimental parameters and numerical procedure are fully described.

Citation Download Citation

Martha B. Alvarez-Elizondo, Manuel Guizar-Sicairos, Rodolfo Rodriguez-Masegosa, and Julio Cesar Gutierrez-Vega "Construction and characterization of a CO₂ axicon-based Bessel-Gauss resonator", Proc. SPIE 5708, Laser Resonators and Beam Control VIII, (12 April 2005); https://doi.org/10.1117/12.589652

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