Multiwavelength Brillouin-Thulium Fiber Laser

Xiong Wang,Pu Zhou,Hu Xiao,Xiaolin Wang,Lei Si

doi:10.1109/jphot.2013.2295471

Xiong Wang, Pu Zhou + Show 3 more

Open Access

https://doi.org/10.1109/jphot.2013.2295471

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Abstract

We demonstrate the first multiwavelength Brillouin-thulium fiber laser (BTFL) with wavelengths near 1.97 μm. The multiwavelength fiber laser was realized based on stimulated Brillouin scattering and nonlinear polarization rotation effects. The laser can generate five Brillouin wavelengths with spacing of about 0.105 nm, which is identical with the wavelength spacing of adjacent Brillouin Stokes lines. The peak power fluctuations of the multiwavelength BTFL were less than 0.5 dB, and the wavelength shifts were less than 0.01 nm in 20 min.

Highlights

Telecommunication employing 2 m lasers have attracted more and more attention in recent years [1]–[4], since Tm-doped fiber has almost 400 nm (1700 nm–2100 nm) emission band, which is much wider than that of Er-doped fiber
We previously demonstrated a tunable, multiwavelength Tm-doped fiber laser (TDFL) based on nonlinear polarization rotation (NPR) and four-wave mixing (FWM) effect this year [29]
We demonstrate the first multiwavelength Brillouin-thulium fiber laser (BTFL) based on stimulated Brillouin scattering (SBS) and NPR effects

Summary

Introduction

Telecommunication employing 2 m lasers have attracted more and more attention in recent years [1]–[4], since Tm-doped fiber has almost 400 nm (1700 nm–2100 nm) emission band, which is much wider than that of Er-doped fiber. In 2013, Zhao et al [26] reported switchable multiwavelength Tm-doped fiber ring lasers, Peng et al demonstrated a switchable dual-wavelength TDFL at 1.94 m [27] and a 42-wavelength TDFL near 1.97 m based on nonlinear amplifier loop mirror [28]. We previously demonstrated a tunable, multiwavelength TDFL based on NPR and FWM effect this year [29]. SBS is an important nonlinear effect in fiber laser generated by the interaction between the incident light and the acoustic waves. Multi-Stokes light can be obtained to form a multiwavelength Brillouin fiber laser, where the channel spacings between the adjacent Stokes lines are nearly uniform and are suitable for dense WDM application and telecommunicaion. We demonstrate the first multiwavelength Brillouin-thulium fiber laser (BTFL) based on SBS and NPR effects. Five Stokes lines were obtained and the channel spacing was about 0.105 nm, the peak power fluctuations of all the wavelengths were less than 0.5 dB and wavelength shifts were less than 0.01 nm in 20 minutes

Experimental Details

Results

Conclusion