Power-scaling of a Ti: sapphire thin-disk oscillator
J. Wolter, M. Ahmed, and T. Graf. CLEO/Europe-EQEC 2017, page CA\_7\_6. Optical Society of America, Optical Society of America, (2017)
Abstract
Titanium doped sapphire (Ti:Al2O3) is a gain medium used in rod-type lasers with a very broad emission bandwidth exceeding 200 nm (FWHM) allowing the generation and amplification of very short pulses (<100 fs). On the other hand the thin-disk type lasers have proven to offer both power and energy scaling to a wide extent 1-3. In this talk we present results on power scaling of a Ti:sapphire thin-disk oscillator in multimode operation. Due to the small gain of Ti:sapphire compared to Yb:YAG in cw-pumping and the temperature-dependent fractional heat, the task of building an efficient oscillator is very challenging. For the experiments presented here we used an a-cut crystal with a thickness of 260 µm and an absorption coefficient of 3.9±0.6 cm−1 for the pump wavelength of 532 nm. In order to increase the absorption of the pump light we modified the standard multi-pass pump optics from 24 pump light passes to 48 passes.
%0 Conference Paper
%1 wolter2017power
%A Wolter, Jan-Hinnerk
%A Ahmed, Marwan Abdou
%A Graf, Thomas
%B CLEO/Europe-EQEC 2017
%D 2017
%I Optical Society of America
%K SolidstateLaser ThindiskLaser TiSapphire from:janwolter laser myown peer
%P CA\_7\_6
%T Power-scaling of a Ti: sapphire thin-disk oscillator
%X Titanium doped sapphire (Ti:Al2O3) is a gain medium used in rod-type lasers with a very broad emission bandwidth exceeding 200 nm (FWHM) allowing the generation and amplification of very short pulses (<100 fs). On the other hand the thin-disk type lasers have proven to offer both power and energy scaling to a wide extent 1-3. In this talk we present results on power scaling of a Ti:sapphire thin-disk oscillator in multimode operation. Due to the small gain of Ti:sapphire compared to Yb:YAG in cw-pumping and the temperature-dependent fractional heat, the task of building an efficient oscillator is very challenging. For the experiments presented here we used an a-cut crystal with a thickness of 260 µm and an absorption coefficient of 3.9±0.6 cm−1 for the pump wavelength of 532 nm. In order to increase the absorption of the pump light we modified the standard multi-pass pump optics from 24 pump light passes to 48 passes.
%@ 978-1-5090-6736-7
@inproceedings{wolter2017power,
abstract = {Titanium doped sapphire (Ti:Al2O3) is a gain medium used in rod-type lasers with a very broad emission bandwidth exceeding 200 nm (FWHM) allowing the generation and amplification of very short pulses (<100 fs). On the other hand the thin-disk type lasers have proven to offer both power and energy scaling to a wide extent [1-3]. In this talk we present results on power scaling of a Ti:sapphire thin-disk oscillator in multimode operation. Due to the small gain of Ti:sapphire compared to Yb:YAG in cw-pumping and the temperature-dependent fractional heat, the task of building an efficient oscillator is very challenging. For the experiments presented here we used an a-cut crystal with a thickness of 260 µm and an absorption coefficient of 3.9±0.6 cm−1 for the pump wavelength of 532 nm. In order to increase the absorption of the pump light we modified the standard multi-pass pump optics from 24 pump light passes to 48 passes.},
added-at = {2018-04-05T16:08:42.000+0200},
author = {Wolter, Jan-Hinnerk and Ahmed, Marwan Abdou and Graf, Thomas},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2b9208080b312534fecabea3c45646578/ifsw},
booktitle = {CLEO/Europe-EQEC 2017},
interhash = {9356ff2dd227d4ddbe5fc9913e3e434e},
intrahash = {b9208080b312534fecabea3c45646578},
isbn = {978-1-5090-6736-7},
keywords = {SolidstateLaser ThindiskLaser TiSapphire from:janwolter laser myown peer},
organization = {Optical Society of America},
pages = {CA\_7\_6},
publisher = {Optical Society of America},
timestamp = {2018-04-20T09:31:09.000+0200},
title = {Power-scaling of a Ti: sapphire thin-disk oscillator},
year = 2017
}
