L-band Q-switched fiber laser with gallium/thulium-doped silica fiber saturable absorber

K. Y. Lau, S. Z.M. Yasin, Pin Jern Ker, A. Mansoor, H. A. Abdul-Rashid, Y. Mustapha Kamil, M. A. Mahdi

Research output: Contribution to journalArticle

Abstract

An L-band Q-switched fiber laser was demonstrated using gallium/thulium-doped silica fiber saturable absorber. At 10 cm in length, the saturable absorber generated Q-switched fiber laser at a pump power threshold of 39.6 mW and a central wavelength of 1601.93 nm. Beyond 53.3 mW, a spectrum with a central wavelength at 1602.00 nm was generated. On the other hand, the pulse repetition rate was obtained from 3.44 to 7.47 kHz whereas the pulse width reduces from 100.2 to 58.6 µs for pump power ranges from 39.6 to 53.3 mW. Within this range, the pulse energy is attained between 0.2600 and 0.2843 µJ, at a laser power slope efficiency of 6.94%. The constantly operated Q-switched fiber laser over 50 min observation time at 53.3 mW pump power ensures the feasibility of this pulse laser source as a practical device.

Original languageEnglish
Article number105615
JournalOptics and Laser Technology
Volume119
DOIs
Publication statusPublished - 01 Nov 2019

Fingerprint

Thulium
Q switched lasers
Saturable absorbers
Gallium
thulium
ultrahigh frequencies
Fiber lasers
Silicon Dioxide
gallium
fiber lasers
absorbers
Silica
Pumps
pumps
silicon dioxide
fibers
Fibers
Pulse repetition rate
Wavelength
pulse repetition rate

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Lau, K. Y., Yasin, S. Z. M., Ker, P. J., Mansoor, A., Abdul-Rashid, H. A., Mustapha Kamil, Y., & Mahdi, M. A. (2019). L-band Q-switched fiber laser with gallium/thulium-doped silica fiber saturable absorber. Optics and Laser Technology, 119, [105615]. https://doi.org/10.1016/j.optlastec.2019.105615
Lau, K. Y. ; Yasin, S. Z.M. ; Ker, Pin Jern ; Mansoor, A. ; Abdul-Rashid, H. A. ; Mustapha Kamil, Y. ; Mahdi, M. A. / L-band Q-switched fiber laser with gallium/thulium-doped silica fiber saturable absorber. In: Optics and Laser Technology. 2019 ; Vol. 119.
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L-band Q-switched fiber laser with gallium/thulium-doped silica fiber saturable absorber. / Lau, K. Y.; Yasin, S. Z.M.; Ker, Pin Jern; Mansoor, A.; Abdul-Rashid, H. A.; Mustapha Kamil, Y.; Mahdi, M. A.

In: Optics and Laser Technology, Vol. 119, 105615, 01.11.2019.

Research output: Contribution to journalArticle

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AU - Lau, K. Y.

AU - Yasin, S. Z.M.

AU - Ker, Pin Jern

AU - Mansoor, A.

AU - Abdul-Rashid, H. A.

AU - Mustapha Kamil, Y.

AU - Mahdi, M. A.

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