Study on Influence of Pumping Spectrum on Stable Uniform Pumping in a Side-Pumped Nd:YAG Amplifier

Tianzhuo Zhao, Hong Xiao, Ke Huang, Zhongwei Fan

Abstract

A new method to realize temperature-stable uniform pumping was presented. Concept of effective absorption coefficient is introduced at first, which is used to indicate actual absorption coefficient of Nd:YAG working materials that concerned the influence of laser diode pumping spectrum characters. After this, flattop and Gaussian as a typical pumping spectrum shaping are discussed, and experimental measured laser diode spectrum is also used to calculate effective absorption coefficient as a comparison. Next, experimental results of pump laser diode deviating from absorption peak of neodymium ion are also numerical analysed, and these results are used to guide pumping central wavelength control. Finally, an optimized laser diode pumping spectrum shape is put forward. With such a pumping spectrum shape, effective absorption spectrum can be optimized to flattop shape, and temperature-stable uniform pumping can be realized.

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Paper Citation


in Harvard Style

Zhao T., Xiao H., Huang K. and Fan Z. (2015). Study on Influence of Pumping Spectrum on Stable Uniform Pumping in a Side-Pumped Nd:YAG Amplifier . In Proceedings of the 3rd International Conference on Photonics, Optics and Laser Technology - Volume 2: PHOTOPTICS, ISBN 978-989-758-093-2, pages 177-183. DOI: 10.5220/0005334501770183


in Bibtex Style

@conference{photoptics15,
author={Tianzhuo Zhao and Hong Xiao and Ke Huang and Zhongwei Fan},
title={Study on Influence of Pumping Spectrum on Stable Uniform Pumping in a Side-Pumped Nd:YAG Amplifier},
booktitle={Proceedings of the 3rd International Conference on Photonics, Optics and Laser Technology - Volume 2: PHOTOPTICS,},
year={2015},
pages={177-183},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005334501770183},
isbn={978-989-758-093-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 3rd International Conference on Photonics, Optics and Laser Technology - Volume 2: PHOTOPTICS,
TI - Study on Influence of Pumping Spectrum on Stable Uniform Pumping in a Side-Pumped Nd:YAG Amplifier
SN - 978-989-758-093-2
AU - Zhao T.
AU - Xiao H.
AU - Huang K.
AU - Fan Z.
PY - 2015
SP - 177
EP - 183
DO - 10.5220/0005334501770183