Nor Azura Malini A Hambali

Publications (2)5 Total impact

• Article: Optimization of output coupling ratio on the performance of a ring-cavity Brillouin-erbium fiber laser.

  Nor Azura Malini A Hambali, Mohd Adzir Mahdi, Mohammed Hayder Al-Mansoori, M Iqbal Saripan, Ahmad Fauzi Abas
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  ABSTRACT: The operation of a single-wavelength Brillouin-erbium fiber laser (BEFL) system with a Brillouin pump preamplified technique for different output coupling ratios in a ring cavity is experimentally demonstrated. The characteristics of Brillouin Stokes power and tunability were investigated in this research. The efficiency of the BEFL operation was obtained at an optimum output coupling ratio of 95%. By fixing the Brillouin pump wavelength at 1550 nm while its power was set at 1.6 mW and the 1480 pump power was set to its maximum value of 135 mW, the Brillioun Stokes power was found to be 28.7 mW. The Stokes signal can be tuned within a range of 60 nm from 1520 to 1580 nm without appearances of the self-lasing cavity modes in the laser system.
  Applied Optics 09/2009; 48(27):5055-60. · 1.41 Impact Factor
• Article: Investigation on the effect of EDFA location in ring cavity Brillouin-Erbium fiber laser.

  Nor Azura Malini A Hambali, Mohd Adzir Mahdi, Mohammed Hayder Al-Mansoori, Ahmad Fauzi Abas, M Iqbal Saripan
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  ABSTRACT: We have investigated the characteristics of Brillouin-Erbium fiber laser (BEFL) with variation of Erbium-doped fiber amplifier (EDFA) locations in a ring cavity configuration. Three possible locations of the EDFA in the laser cavity have been studied. The experimental results show that the location of EDFA plays vital role in determining the output power and the tuning range. Besides the Erbium gain, Brillouin gain also contributes to the performance of the BEFL. By placing the EDFA next to the Brillouin gain medium (dispersion compensating fiber), the Brillouin pump signal is amplified thereby generating higher intensities of Brillouin Stokes line. This efficient process suppresses the free running self-lasing cavity modes from oscillating in cavity as a result of higher Stokes laser power and thus provide a wider tuning range. At the injected Brillouin pump power of 1.6 mW and the maximum 1480 nm pump power of 135 mW, the maximum Stokes laser power of 25.1 mW was measured and a tuning range of 50 nm without any self-lasing cavity modes was obtained.
  Optics Express 08/2009; 17(14):11768-75. · 3.59 Impact Factor