A Cooled Deformable Bimorph Mirror for a High Power Laser

Lee, Jun Ho; Lee, Young Cheol; Kang, Eung Cheol

doi:10.3807/josk.2006.10.2.057

Cited by 15 publications

(2 citation statements)

References 13 publications

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“…Such mirrors could be divided on two categories: bimorph [15,16] and piezostack [17][18][19][20] . First ones distinguish for their perfect possibility of the correction of the large-scale aberrations, high reliability, low cost and cooling implementation [21] . However, such correctors are not suitable for high-order aberration compensation and have low resonant frequency.…”

Section: Introductionmentioning

confidence: 99%

Deformable piezoelectric mirrors with high density of control elements

Toporovsky¹,

Kudryashov

Sheldakova³

et al. 2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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We have developed three types of deformable piezoelectric mirrors with a high density of control elements to compensate for the aberrations of the wavefront of high-power laser radiation that has passed through a turbulent atmosphere: bimorph and piezoactuator types. When creating correctors of the first type, laser engraving and microwelding methods were used, which made it possible to create a 30 mm bimorph mirror with 37 electrodes, compensated for wavefront aberrations up to the 7th order of the Zernike polynomials. The design of the piezoactuator mirrors provided for the possibility of replacing the piezoelectric stacks in the event of their failure, as well as thermal stabilization of the corrector's reflective substrate through the body of the actuators. Main parameters of all types deformable mirrors were investigated and compared.

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Section: Introductionmentioning

confidence: 99%

Deformable piezoelectric mirrors with high density of control elements

Toporovsky¹,

Kudryashov

Sheldakova³

et al. 2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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“…Thus, the measurement and the correction of a wavefront aberration of a laser pulse is important for improving the quality of the focal spot. An adaptive optics (AO) system [3] that consists of a wavefront sensing device [4,5] and a deformable mirror [6,7] measures and corrects a wavefront aberration of a laser pulse, and eventually delivers a nearly diffraction-limited focal spot to a target. However, in many cases, a nearly diffraction-limited focal spot becomes worse as time goes by.…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of Wavefront Aberration of 100-TW Ti:sapphire Laser Pulse Using Phase Retrieval Method

Jeong¹,

Kim²,

Ko³

et al. 2008

Journal of the Optical Society of Korea

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A phase retrieval method using an error reduction algorithm is developed for reconstructing a wavefront aberration of an 100-TW Ti:sapphire laser pulse from the measurement of a focal spot. The phase retrieval method can successfully reconstruct a wavefront aberration of a 100-TW Ti:sapphire laser pulse, and the reconstructed wavefront aberration shows a good agreement with the wavefront aberration measured with a wavefront sensor. The effect of the dynamic range and the intensity noise on the reconstruction is also investigated in reconstructing a wavefront aberration of an 100-TW Ti:sapphire laser pulse.

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