Wavelength Tunable Passively Q-Switched Alexandrite Laser with Direct Diode-Pumping at 635 nm

Ufuk Parali, Gabrielle Thomas, Ara Minassian, Xin Sheng, Michael J. Damzen

2017

Abstract

We report on a wavelength tunable passively Q-switched Alexandrite laser directly red-diode-pumped at 635 nm. Passive Q-switching was achieved with a semiconductor saturable absorber mirror (SESAM) and wavelength tuning with a birefringent tuner. The pulse repetiton rate was variable on the pump power and wavelength and a maximum 27 kHz rate was achieved in fundamental TEM00 mode. The maximum average output power obtained was 41 mW. The Q-switched wavelength tuning band was studied between 740 nm and 755 nm. To the best of our knowledge, this is the first time that tunable TEM00 passive Q-switched operation of a diode-pumped Alexandrite laser has been achieved. The results obtained in this study can be significantly further optimised for performance. A new cavity configuration for this optimisation is described. Future work is expected to lead to the development of higher power, more efficient tunable passive Q-switched (and potentially passive mode-locked) diode-pumped Alexandrite laser sources in the near-infrared band and also ultraviolet region through frequency conversion.

Paper Citation

in Harvard Style

Parali U., Thomas G., Minassian A., Sheng X. and Damzen M. (2017). Wavelength Tunable Passively Q-Switched Alexandrite Laser with Direct Diode-Pumping at 635 nm . In Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-223-3, pages 82-89. DOI: 10.5220/0006155500820089

in Bibtex Style

@conference{photoptics17,
author={Ufuk Parali and Gabrielle Thomas and Ara Minassian and Xin Sheng and Michael J. Damzen},
title={Wavelength Tunable Passively Q-Switched Alexandrite Laser with Direct Diode-Pumping at 635 nm},
booktitle={Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2017},
pages={82-89},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006155500820089},
isbn={978-989-758-223-3},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Wavelength Tunable Passively Q-Switched Alexandrite Laser with Direct Diode-Pumping at 635 nm
SN - 978-989-758-223-3
AU - Parali U.
AU - Thomas G.
AU - Minassian A.
AU - Sheng X.
AU - Damzen M.
PY - 2017
SP - 82
EP - 89
DO - 10.5220/0006155500820089