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Authors: Ufuk Parali 1 ; Gabrielle Thomas 2 ; Ara Minassian 3 ; Xin Sheng 2 and Michael J. Damzen 2

Affiliations: 1 Imperial College London and Adnan Menderes University, United Kingdom ; 2 Imperial College London, United Kingdom ; 3 Unilase Ltd, United Kingdom

Keyword(s): Alexandrite, Passive Q-Switch Lasers, Tunable Lasers, Diode-Pumped Lasers.

Related Ontology Subjects/Areas/Topics: Lasers ; Photonics, Optics and Laser Technology ; Quantum Electronics and Laser Science

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 l aser sources in the near-infrared band and also ultraviolet region through frequency conversion. (More)

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Paper citation in several formats:
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 - PHOTOPTICS; ISBN 978-989-758-223-3; ISSN 2184-4364, SciTePress, pages 82-89. DOI: 10.5220/0006155500820089

@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 - PHOTOPTICS},
year={2017},
pages={82-89},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006155500820089},
isbn={978-989-758-223-3},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS
TI - Wavelength Tunable Passively Q-Switched Alexandrite Laser with Direct Diode-Pumping at 635 nm
SN - 978-989-758-223-3
IS - 2184-4364
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
PB - SciTePress

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