Share Email Print
cover

Proceedings Paper

Refractive beam shapers for optical systems of lasers
Author(s): Alexander Laskin; Vadim Laskin; Aleksei Ostrun
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Performance of modern high-power lasers can be strongly improved by control of irradiance distribution in laser optical systems: flat-top or super-Gaussian irradiance profiles are optimum for amplification in MOPA lasers and for reduction of thermal effects in crystals of solid-state ultra-short pulse lasers; variable profiles are also important in irradiating of photocathode of Free Electron lasers (FEL). This task can be easily solved with using beam shaping optics, for example, the field mapping refractive beam shapers like Shaper. The operational principle of these devices presumes transformation of laser beam intensity from Gaussian to flattop one with high flatness of output wavefront, saving of beam consistency, providing collimated output beam of low divergence, high transmittance, extended depth of field, negligible residual wave aberration, and achromatic design provides capability to work with ultra-short pulse lasers having broad spectrum. With using the same Shaper it is possible to realize various beam profiles like flattop, inverse Gauss or super Gauss by simple variation of input beam diameter. This paper will describe some design basics of refractive beam shapers of the field mapping type and optical layouts of their applying in optical systems of high-power lasers. Examples of real implementations and experimental results will be presented as well.

Paper Details

Date Published: 20 February 2015
PDF: 10 pages
Proc. SPIE 9346, Components and Packaging for Laser Systems, 93460R (20 February 2015); doi: 10.1117/12.2080864
Show Author Affiliations
Alexander Laskin, AdlOptica GmbH (Germany)
Vadim Laskin, AdlOptica GmbH (Germany)
Aleksei Ostrun, St. Petersburg National Research Univ. of Information Technologies, Mechanics and Optics (Russian Federation)


Published in SPIE Proceedings Vol. 9346:
Components and Packaging for Laser Systems
Alexei L. Glebov; Paul O. Leisher, Editor(s)

© SPIE. Terms of Use
Back to Top