150-Channel Four Wave Mixing Based Multiwavelength Brillouin-Erbium Doped Fiber Laser

Abstract

A wide band tunable multiwavelength Brillouin-erbium fiber laser (BEFL) is developed. In this structure, the laser is formed between a double pass amplification box and a highly nonlinear fiber (HNLF), which acts as a virtual mirror, results in removing the reflective physical mirror from one side of the laser structure. A large number of Stokes and anti-Stokes lines are generated through cascading stimulated Brillouin scattering and inducing four wave mixing process inside the HNLF. Due to optimizing Brillouin and erbium doped fiber (EDF) pump powers, the Rayleigh back scattering is efficiently suppressed, and the generated BEFL wavelengths are free from self lasing cavity modes over a wide tuning range. At EDF pump power and Brillouin pump power of 100 mW and 3 dBm, respectively, up to 150 Stokes lines with wavelength spacing of 0.076 nm, and a tuning range of 40 nm were achieved.

Wide bandwidth and flat multiwavelength Brillouin-erbium fiber laser

“…Among mechanisms that have been adopted to realize fiber lasers is the manipulation of nonlinear phenomena in optical fibers such as stimulated Brillouin scattering (SBS), stimulated Raman scattering and fourwave mixing (FWM). Examples of fiber laser technology that manipulate fiber nonlinearities are multiwavelength erbium-doped fiber laser (EDFL) [2], fiber optical parametric oscillator (FOPO) [3,4], Brillouin-Raman fiber laser (BRFL) [5,6] and Brillouin-erbium fiber lasers (BEFL) [7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Multiwavelength BEFLs have the edge over multiwavelength EDFLs and FOPOs owing to their narrow linewidth, single longitudinal mode frequency and narrow wavelength spacing of 0.08 nm [7].…”

“…Another method to increase the number of channel is to incorporate the FWM effect in BEFL structures [17,18]. Based on the published works, both designs can produce output channels up to 150 lines as a result of the assistance of FWM processes in highly nonlinear optical fibers.…”

Multiwavelength Brillouin-Thulium Fiber Laser

“…The multiwavelength fiber laser around 1.5 m has been widely studied and there are many typical methods to generate multiwavelength lasing, such as liquid nitrogen cooling [5], [6], multiple-grating [7]- [9], tunable filter comb [10]- [13], spatial mode beating filter [14], [15], nonlinear loop mirror [16], [17], four-wave mixing (FWM) [18], [19], nonlinear polarization rotation (NPR) [20], [21] and stimulated Brillouin scattering (SBS) [22]- [25]. Multiwavelength TDFL near 2 m has also been studied in very recent years.…”

Nonlinear Fiber Loop Mirror Optimization to Enhance the Performance of Multiwavelength Brillouin/Erbium-Doped Fiber Laser

“…The performance of fiber laser source based on the nonlinearity effect such as stimulated Brillouin scattering (SBS), stimulated Raman scattering (SRS), and four wave mixing (FWM) that can generate a large number of Stokes lines has been discussed by many reports in the past [1]- [3]. The reported value of the wavelength spacing between the Stokes lines is around 10 GHz [4].…”