Brillouin-Raman comb fiber laser with cooperative Rayleigh scattering in a linear cavity

Abstract

We demonstrate a multiple-wavelength Brillouin comb laser with cooperative Rayleigh scattering that uses Raman amplification in dispersion-compensating fiber. The laser resonator is a linear cavity formed by reflector at each end of the dispersion-compensating fiber to improve the reflectivity of the Brillouin Stokes comb. Multiple Brillouin Stokes generation has been improved in terms of optical signal-to-noise ratio and power-level fluctuation between neighboring channels. Furthermore, the linewidth of the Brillouin Stokes is uniform within the laser output bandwidth.

Multi-Wavelength Fiber Lasers

“…Lasers taking advantage of cooperative Rayleigh scattering as a self-feedback mechanism of Brillouin-Rayleigh scattering have been reported [114]- [116]. Schemes have been implemented by using four-wave mixing method through the use of reduced high nonlinear Bismuth-erbium doped fiber for Brillouin-Raman multiwavelength lasing with comb generation [117], or high-reflectivity mirror in the linear cavity for distributed feedback [118], [119]. Different multiwavelength Raman fiber lasers based in these same structural setups have been recently developed: a multiwavelength Raman fiber laser based in highly birefringent photonic crystal fiber loop mirrors combined with random mirrors [110] or based in Sagnac structures [120], [121].…”

Effect of Rayleigh-scattering distributed feedback on multiwavelength Raman fiber laser generation

“…A distributed RS mirror has also been used to improve generation of Brillouin combs in a linear RFL cavity, see e.g. 14,15 . Similarly, it may be utilized as a broadband mirror in multiwavelength RFLs.…”

Continues-wave Brillouin-Raman fiber ring laser using 7.7 km long dispersion compensating fiber at 1563 nm wavelength

“…The study of dynamics of cascaded Brillouin-Rayleigh scattering in a distributed fiber Raman amplifier was also determined [9]. The analysis of Brillouin-Raman comb fiber laser with cooperative Rayleigh scattering in a linear cavity was shown in [10].…”