Dynamics of the Laguerre Gaussian<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msubsup><mml:mrow><mml:mi mathvariant="normal">TEM</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn><mml:mo>,</mml:mo><mml:mi>l</mml:mi></mml:mrow><mml:mrow><mml:mi>*</mml:mi></mml:mrow></mml:msubsup></mml:mrow></mml:math>mode in a solid-state laser

Chen, Yung-Fu; Lan, Yu-Pin

doi:10.1103/physreva.63.063807

Cited by 58 publications

(22 citation statements)

References 21 publications

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“…41) Sometimes, for a slightly misaligned cavity, the admixture of HG modes was observed, as it can be seen at the Fig. 2(e).…”

Section: Lg Pm Modes Selectionmentioning

confidence: 61%

“…There are a large number of experiments with DPSSLs, where LG 0m and LG 0AEm modes were observed. 40,41,75,[100][101][102]121) A technique has been developed for the generation of LG 0m modes in a fiber-coupled cw laser diode end-pumped Nd 3þ -doped YVO 4 microchip laser. 40) The idea was to produce a doughnut-shaped pump profile by defocusing a fiber-coupled diode.…”

Section: Lg 0m Modes Selectionmentioning

confidence: 99%

“…28) Numerous applications of scalar LG modes, covering several fields in physics, have been found: oam transfer to small particles, 29,30) cold atoms and particles trapping, [31][32][33][34][35] quantum information, 36) high resolution microscopy, 37,38) material processing, 39) etc. A large number of publications exist on the methods of formation of scalar LG modes both inside the cavity (active methods) 16,17,[40][41][42][43] and outside (passive methods), [44][45][46][47] where mode conversion to the required mode was achieved using holograms, spatial light modulators and diffractive optical elements.…”

Section: Introductionmentioning

confidence: 99%

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Laguerre-Gaussian modes selection in diode-pumped solid-state lasers

Senatsky

Bisson

et al. 2012

OPT REV

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Over the last twenty years, diode pumping of solid-state lasers has opened new prospects for the mode control and formation of Laguerre-Gaussian (LG) beams, enabling a large variety of applications. Experiments on scalar and vector LG modes selection in Nd 3þ -and Yb 3þ -doped ceramics and crystal lasers carried out at the Institute for Laser Science, Tokyo are reviewed. Selection of LG modes from low to high orders using intra-cavity elements, polarization-selective mirrors, or shaping the pump beam profile, is considered. Illustrations of record-high-order LG hollow modes, multiring modes with highly directional propagation properties, characteristics of cw and pulsed lasers with radially or azimuthally polarized beams of high polarization purity are presented. General solutions of the wave equation for the axi-symmetric electric field, which describe LG beams of various profiles, are proposed for data analysis. In parallel, a short review on LG modes selection studies carried out at other laboratories is given.

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“…41) Sometimes, for a slightly misaligned cavity, the admixture of HG modes was observed, as it can be seen at the Fig. 2(e).…”

Section: Lg Pm Modes Selectionmentioning

confidence: 61%

Section: Lg 0m Modes Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Laguerre-Gaussian modes selection in diode-pumped solid-state lasers

Senatsky

Bisson

et al. 2012

OPT REV

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“…Methods for LG p,l mode formation directly in a solid-state laser cavity using phase elements were developed [5,13]. "Hollow" LG 0,l (l > 0) beams of high azimuthal order were produced in Nd:YAG and Nd:YVO 4 lasers by shaping pump beam intensity profiles [8,9,11,14]. Thermo-optical effects in the gain medium were used for powerful LG Among optical components, short-focal spherical lenses (having appreciable spherical aberration) are not practically used in laser schemes.…”

Section: Introductionmentioning

confidence: 99%

Generation of very-high order Laguerre-Gaussian modes in Yb:YAG ceramic laser

2010

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The use of a simple short-focus plano-convex glass lens with strong spherical aberration for Laguerre-Gaussian mode selection in a continuous wave (CW) LD-end-pumped Yb:YAG ceramic laser is demonstrated. Mode selection was obtained in a nearly meter long plane-parallel cavity by shifting an intra-cavity lens of 2.5 cm focal length along the resonator axis. Sequence of Laguerre-Gaussian (LG p,l ) modes with different combinations of radial (p) and azimuthal (l) indices from low to high orders (p = 0 -12, l = 0 -28) with output beam diameters 2 -13 mm and power up to 30 mW was produced. Along with many low order modes, the whole lineage of very high order pure "hollow" LG p,l modes (p = 5 -10, l = 7 -28) was produced by this method for the first time. The region of stability of the resonator with an intra-cavity aberrating lens was found to be enclosed between "focusing" and "imaging" configurations in the cavity, which the aberrating lens could provide simultaneously. The mechanism of LG p,l mode selection in such a cavity and possible applications of the proposed laser scheme are considered.CCD camera image of LG 9,20 mode near-field pattern

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“…By contrast, direct generation from a laser cavity is expected to improve the beam quality due to an inherent feedback effect in the cavity. Although many attempts have been reported, for example, a ring-shaped beam pumping [12], the thermal lensing effect in a diode-side-pumped bounce laser cavity [13], the insertion of a spiral phase plate [14], and the use of a circular absorber [15][16][17], most of them have merely reported the generation of the LG beam without a detailed evaluation of the beam purity and quality. Recently, we have demonstrated the generation of LG beams from a Nd : yttrium aluminum garnet (YAG) laser cavity using a spot defect mirror [18].…”

Section: Introductionmentioning

confidence: 99%

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

Kano

Kozawa

Sato

2012

International Journal of Optics

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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 μm 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 LG 01 beam.

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Dynamics of the Laguerre GaussianTEM0,l*mode in a solid-state laser

Cited by 58 publications

References 21 publications

Laguerre-Gaussian modes selection in diode-pumped solid-state lasers

Laguerre-Gaussian modes selection in diode-pumped solid-state lasers

Generation of very-high order Laguerre-Gaussian modes in Yb:YAG ceramic laser

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

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