Abstract
In this paper, the development of loop mirror multi-wavelength Brillouin fiber laser utilizing semiconductor optical amplifier and fiber Bragg grating is successfully demonstrated. A multi-wavelength BFL structure employs a single mode fiber that acts as the gain medium, while the fiber Bragg grating act to reflect the signals and semiconductor optical amplifier is used to amplify the signal are employed to produce multiple channels. The implementation of difference parameter for semiconductor optical amplifier driven current, Brillouin pump power, Brillouin pump wavelength and length of single mode fiber, plays an important role in producing the multiple channels. The highest number of channels which is 15 achieved once 9 km of SMF length, semiconductor optical amplifier current at 800mA and low Brillouin pump power at -12 dBm are utilized in the laser structure. Furthermore, the implementation of semiconductor optical amplifier and reflectivity of fiber Bragg grating in Brillouin fiber laser structure gives a better performance in producing the multiple channels.
Highlights
Throughout the years, multi-wavelength fiber laser has received much attention due to their numerous works with potential applications in optical fiber sensors [1], wavelength division multiplexing (WDM) systems [2], spectroscopy [3] and optical component testing [4].Various amplification methods have been proposed previously in producing the multiwavelength output, such as semiconductor optical amplifier (SOA), Erbium-doped fiber amplifier (EDFA), and Raman amplifier [4].Typically, erbium-doped fiber amplifier (EDFA) is a favourable candidate in generating multiple channels which is has the capability of providing large gain, high saturation power and low noise figure [5]
The loop mirror multi-wavelength Brillouin fiber laser (MWBFL) utilizing SOA and reflectivity of FBG has been studied to make an improvement in term or number of channels which is much highest that previous studies in [8]
As presented in this paper, the development of the loop mirror MWBFL utilizing SOA and FBG is successfully demonstrated in the C- and region which in the range of 1530 nm to1565 nm
Summary
Throughout the years, multi-wavelength fiber laser has received much attention due to their numerous works with potential applications in optical fiber sensors [1], wavelength division multiplexing (WDM) systems [2], spectroscopy [3] and optical component testing [4].Various amplification methods have been proposed previously in producing the multiwavelength output, such as semiconductor optical amplifier (SOA), Erbium-doped fiber amplifier (EDFA), and Raman amplifier [4].Typically, erbium-doped fiber amplifier (EDFA) is a favourable candidate in generating multiple channels which is has the capability of providing large gain, high saturation power and low noise figure [5]. The inhomogeneous broadening characteristic that offered by SOA is the alternative way in producing a large number of channels [6] Besides that, it minimizes the competition of the laser mode and has the ability to produce a stable multiple channels. The Brillouin fiber laser (BFL) is one type of fiber laser that experienced a nonlinear effect known as Stimulated Brillouin Scattering (SBS) This nonlinear process involves the interaction between the intense pump light that being injected by the light source and acoustic wave in the optical fiber [7]. The loop mirror multi-wavelength Brillouin fiber laser (MWBFL) utilizing SOA and reflectivity of FBG has been studied to make an improvement in term or number of channels which is much highest that previous studies in [8]. The variation of SOA driven current, BP wavelength and length of SMF affect the performance and generation of the channels
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