Generation of a Purely Single Transverse Mode Vortex Beam from a He-Ne Laser Cavity with a Spot-Defect Mirror | Zendy

Ken Kano | Zendy; Yuichi Kozawa | Zendy; Shunichi Sato | Zendy

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Generation of a Purely Single Transverse Mode Vortex Beam from a He-Ne Laser Cavity with a Spot-Defect Mirror

Author(s) -

Ken Kano,

Yuichi Kozawa,

Shunichi Sato

Publication year - 2011

Publication title -

international journal of optics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.263

H-Index - 17

eISSN - 1687-9392

pISSN - 1687-9384

DOI - 10.1155/2012/359141

Subject(s) - optics , physics , laser beam quality , transverse plane , beam (structure) , intensity (physics) , dielectric , vortex , laser , quality (philosophy) , laser beams , optoelectronics , quantum mechanics , structural engineering , thermodynamics , engineering

Spot-defect mirrors were fabricated by focusing laser pulses on the surface of conventional dielectric mirrors. These mirrors were used as rear mirrors of a He-Ne laser cavity for generating a vortex beam. The intensity distribution of the beam generated from the cavity with a spot diameter of 50 m was in excellent agreement with theory. Comprehensive analysis of the intensity distribution, the beam quality factor, and the interference pattern revealed that the beam obtained was a purely single transverse mode LG01 beam

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