Spectral optimization of Stokes channels for multi-wavelength Brillouin fiber lasers

Abstract

In this paper, through a semi-analytical model, we demonstrate the spectral optimization of Stokes channels for cascaded multi-wavelength Brillouin fiber lasers. Here we develop an improved version of an earlier model, introducing the erbium-doped fiber amplifier gain saturation into the mathematical formalism of the laser, making our model more accurate. Our results reveal that with the proper selection of laser component parameters, it is possible to increase the number of generated Stokes channels significantly and generate them with high flatness. Specifically, 75 and 69 Stokes channels were generated within a 3.7 and 3 dB range, respectively.

Investigating the Impact of SMF on Brillouin Fiber Laser Performance

“…The longer fiber length may also introduce additional losses and dispersion, which can influence the laser's spectral characteristics [13]. Enhanced Brillouin Gain: The addition of an SMF can increase the Brillouin gain in the laser cavity [14]. The Brillouin gain is dependent on the fiber's properties, such as its length, composition, and effective area [15].…”