Development of continuous wave and mode locked titanium sapphire laser

A Ti:sapphire laser was developed based on self mode-locking technique using a 'Z' folded cavity. Diode pumped solid state laser Verdi 5 was used as a pumping source with fundamental wavelength of 532 nm (suitable for the absorption band in Ti:sapphire crystal). Laser cavity was aligned by...

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Main Author:	Wan Razali, Wan Aizuddin
Format:	Thesis
Language:	English
Published:	2008
Subjects:	QC Physics
Online Access:	http://eprints.utm.my/id/eprint/10075/1/WanAizuddinWanRazaliMFS2009.pdf
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spelling	my-utm-ep.100752018-10-14T07:21:38Z Development of continuous wave and mode locked titanium sapphire laser 2008-04 Wan Razali, Wan Aizuddin QC Physics A Ti:sapphire laser was developed based on self mode-locking technique using a 'Z' folded cavity. Diode pumped solid state laser Verdi 5 was used as a pumping source with fundamental wavelength of 532 nm (suitable for the absorption band in Ti:sapphire crystal). Laser cavity was aligned by a set of mirrors with a high reflectivity of 99.8% to reflect the beam within the range of 720 nm to 820 nm, and an output coupler with a 5% transmission. A pair of prism was employed to control the dispersion for producing femtosecond pulse. The pulse was initiated via an external perturbation. The stability of the laser was sustained by providing a water cooling system. The laser operated in two modes which are continuous wave mode (CW) and pulse mode with mode-locked (ML) mechanism. The maximum output power of the CW Ti:sapphire laser is 1.12 W corresponding to a pumping power of 5.5 W and the efficiency of 26%. The optimum average power of mode-locked Ti:sapphire laser is 577 mW corresponding to the same pumping power of 5.5 W and a lower efficiency of 18%. The frequency of mode-locked laser pulse obtained is 96.43 MHz. The spectrum of laser radiation is centered at 806.74 nm with a bandwidth of 22.37 nm at full width half maximum (FWHM). The pulse duration of the mode-locked Ti:Sapphire laser is 30.53 femtosecond. 2008-04 Thesis http://eprints.utm.my/id/eprint/10075/ http://eprints.utm.my/id/eprint/10075/1/WanAizuddinWanRazaliMFS2009.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:1374 masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QC Physics
spellingShingle	QC Physics Wan Razali, Wan Aizuddin Development of continuous wave and mode locked titanium sapphire laser
description	A Ti:sapphire laser was developed based on self mode-locking technique using a 'Z' folded cavity. Diode pumped solid state laser Verdi 5 was used as a pumping source with fundamental wavelength of 532 nm (suitable for the absorption band in Ti:sapphire crystal). Laser cavity was aligned by a set of mirrors with a high reflectivity of 99.8% to reflect the beam within the range of 720 nm to 820 nm, and an output coupler with a 5% transmission. A pair of prism was employed to control the dispersion for producing femtosecond pulse. The pulse was initiated via an external perturbation. The stability of the laser was sustained by providing a water cooling system. The laser operated in two modes which are continuous wave mode (CW) and pulse mode with mode-locked (ML) mechanism. The maximum output power of the CW Ti:sapphire laser is 1.12 W corresponding to a pumping power of 5.5 W and the efficiency of 26%. The optimum average power of mode-locked Ti:sapphire laser is 577 mW corresponding to the same pumping power of 5.5 W and a lower efficiency of 18%. The frequency of mode-locked laser pulse obtained is 96.43 MHz. The spectrum of laser radiation is centered at 806.74 nm with a bandwidth of 22.37 nm at full width half maximum (FWHM). The pulse duration of the mode-locked Ti:Sapphire laser is 30.53 femtosecond.
format	Thesis
qualification_level	Master's degree
author	Wan Razali, Wan Aizuddin
author_facet	Wan Razali, Wan Aizuddin
author_sort	Wan Razali, Wan Aizuddin
title	Development of continuous wave and mode locked titanium sapphire laser
title_short	Development of continuous wave and mode locked titanium sapphire laser
title_full	Development of continuous wave and mode locked titanium sapphire laser
title_fullStr	Development of continuous wave and mode locked titanium sapphire laser
title_full_unstemmed	Development of continuous wave and mode locked titanium sapphire laser
title_sort	development of continuous wave and mode locked titanium sapphire laser
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2008
url	http://eprints.utm.my/id/eprint/10075/1/WanAizuddinWanRazaliMFS2009.pdf
_version_	1747814794963976192

Development of continuous wave and mode locked titanium sapphire laser

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