Iterative calculation, manufacture and investigation of DOE forming unimodal complex distribution

Pavelyev, V. S.; Сойфер, В. А.; Duparré, Michael; Kowarschik, R.; Lüdge, B.; Kley, B.

doi:10.1016/s0143-8166(97)00115-2

Cited by 5 publications

(2 citation statements)

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“…Relaxation parameters can be introduced to the algorithm to speed up its convergence [48] and was used for the generation of a HG 1,0 mode in refs. [44,45]. No such effect was observed in our case and relaxation parameters were tested to be unnecessary.…”

Section: Generation Of Hg Modesmentioning

confidence: 63%

“…Since a HG m,n mode is invariant by F , the last equation shows that a fundamental Gaussian mode cannot be converted into an arbitrary HG m,n mode with 100% efficiency. In [44,45] it is proposed to generate the HG m,n mode in a limited area of the Fourier plane while no condition is imposed on the rest of the plane. The approach is inspired from the Gerchberg-Saxton algorithm [46].…”

Section: Generation Of Hg Modesmentioning

confidence: 99%

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Generation of very high-order high purity Gaussian modes via spatial light modulation

Ast,

Di Pace,

Millo

et al. 2019

Preprint

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We experimentally demonstrate the conversion of a fundamental TEM00 laser mode at 1064 nm to higher order Hermite-Gaussian modes (HG) of arbitrary order via a commercially available liquid crystal Spatial Light Modulator (SLM). We particularly studied the HG5,5/HG10,10/HG15,15 modes. A two-mirror plano-spherical cavity filters the higher-order modes spatially. We analyze the cleaned modes via a three-mirror diagnosis cavity and measure a mode purity of 96/93/78% and a conversion efficiency of 6.6%/3.7%/1.7% respectively. The generated high-purity Hermite-Gaussian modes can be employed for the mitigation of mirror thermal noise in optical cavities for both optical clocks and gravitational wave (GW) detectors. HG modes are then converted into high order LG modes which can be of particular interest in cold atom physics.

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Section: Generation Of Hg Modesmentioning

confidence: 63%

Section: Generation Of Hg Modesmentioning

confidence: 99%