Short-pulsed Q-switched Thulium doped fiber laser with graphene oxide as a saturable absorber

N. Kasim, A. A. Latiff, M. F.M. Rusdi, M. B. Hisham, S. W. Harun, Razak Nor Farhah

Research output: Contribution to journalArticle

Abstract

This paper reports a generation of short-pulsed thulium-doped fiber laser (TDFL) in Q-switching operation incorporation of homemade graphene oxide (GO) saturable absorber (SA). The GO SA is embedded with a polymer to form a GO film. A piece of the GO film is integrated into the TDFL cavity for generating a self-started Q-switching operation at 1943 nm wavelength. The 3-dB bandwidth, repetition rate, and pulse width of the laser are obtained as 9 nm, 15.76 kHz–25.08 kHz, and 5.08 μs–4.2 μs, respectively. The maximum pulse energy of 0.698 μJ obtainable at 344 mW pump power, with a peak power of 137.4 mW. With a shortest pulse width size at a maximum pump power of 491 mW, the higher peak power is determined about 162 mW. By integrating our stable Q-switched laser with an optical amplifier, numerous applications such as a material cutting with the eye-safe feature can be realized. This shows a small piece of the GO can modulate a light and use for the pulsed laser industry.

Original languageEnglish
Pages (from-to)462-466
Number of pages5
JournalOptik
Volume168
DOIs
Publication statusPublished - 1 Sep 2018

Fingerprint

Thulium
Saturable absorbers
thulium
Graphite
Fiber lasers
Oxides
Graphene
fiber lasers
absorbers
graphene
oxides
Q switching
Oxide films
oxide films
pulse duration
Pumps
pumps
Q switched lasers
Light amplifiers
Laser resonators

Keywords

  • Fiber laser
  • Graphene
  • Q-switching operation
  • Saturable absorber

ASJC Scopus subject areas

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

Cite this

Short-pulsed Q-switched Thulium doped fiber laser with graphene oxide as a saturable absorber. / Kasim, N.; Latiff, A. A.; Rusdi, M. F.M.; Hisham, M. B.; Harun, S. W.; Nor Farhah, Razak.

In: Optik, Vol. 168, 01.09.2018, p. 462-466.

Research output: Contribution to journalArticle

Kasim, N. ; Latiff, A. A. ; Rusdi, M. F.M. ; Hisham, M. B. ; Harun, S. W. ; Nor Farhah, Razak. / Short-pulsed Q-switched Thulium doped fiber laser with graphene oxide as a saturable absorber. In: Optik. 2018 ; Vol. 168. pp. 462-466.
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