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Page 42
allied
academies
August 23-24, 2018 | Paris, France
Laser, Optics and Photonics
International Conference on
Journal of Materials Science and Nanotechnology | Volume: 2
Passive Q-switched pulse Erbium doped fiber laser Antimony Telluride (Sb
2
Te
3
) as saturable absorber
Noor Azura Awang
1
, N Zalkepali
1
, Y R Yuzaile
1
, Z Zakaria
1
and
A A Latif
2
1
University of Tun Hussein Onn Malaysia, Malaysia
2
University of Putra Malaysia, Malaysia
T
his paper demonstrates the passively Q-switched pulse
Erbium doped fiber laser (EDFL) using thin film Antimony
Telluride (Sb
2
Te
3
) as saturableabsorber (SA) for the first time. The
modulationdepthof theSb
2
Te
3
ismeasuredas28.01%with input
intensity 0.02MJ/cm
2
at 63.8mW pump power that operated
at 980-nm laser source. Handmade mode-locked fiber laser is
utilized for measuring modulation depth by using twin detector
method with period 59.52ns and repetition rate 16.8MHz. The
simple design is fabricated to generate passively Q-switched
pulse fiber laser with maximum pump power at 69.5mW with
an operating wavelength at 1560nm for this experimental
setup. The repetition rate and pulse width are 30.21kHz and
0.54μs respectively. The Q-switched pulse energy is 29.43nJ
and the optical signal to noise ratio is 63.82dB for this study.
e:
norazura@uthm.edu.myNotes: