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...
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English |
| Published: |
2008
|
| Subjects: | |
| Online Access: | http://eprints.utm.my/10075/ http://eprints.utm.my/10075/1/WanAizuddinWanRazaliMFS2009.pdf |
| _version_ | 1848892006519013376 |
|---|---|
| author | Wan Razali, Wan Aizuddin |
| author_facet | Wan Razali, Wan Aizuddin |
| author_sort | Wan Razali, Wan Aizuddin |
| building | UTeM Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T21:07:00Z |
| format | Thesis |
| id | utm-10075 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T21:07:00Z |
| publishDate | 2008 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-100752018-10-14T07:21:38Z http://eprints.utm.my/10075/ Development of continuous wave and mode locked titanium sapphire laser 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 NonPeerReviewed application/pdf en http://eprints.utm.my/10075/1/WanAizuddinWanRazaliMFS2009.pdf Wan Razali, Wan Aizuddin (2008) Development of continuous wave and mode locked titanium sapphire laser. Masters thesis, Universiti Teknologi Malaysia, Faculty of Science. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:1374 |
| spellingShingle | QC Physics Wan Razali, Wan Aizuddin Development of continuous wave and mode locked titanium sapphire laser |
| title | 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_short | Development of continuous wave and mode locked titanium sapphire laser |
| title_sort | development of continuous wave and mode locked titanium sapphire laser |
| topic | QC Physics |
| url | http://eprints.utm.my/10075/ http://eprints.utm.my/10075/ http://eprints.utm.my/10075/1/WanAizuddinWanRazaliMFS2009.pdf |