Random fiber laser formed by mixing dispersion compensated fiber and single mode fiber.

Taking advantage of relatively strong Rayleigh scattering and Raman gain of dispersion compensated fiber (DCF), three configurations to form efficient random fiber lasers (RFL) are proposed in this paper. Compared with the reported RFL formed by single-mode fiber (SMF) solely, lasing threshold and length of the proposed RFL are effectively reduced through combination of DCF and SMF. In addition, FBGs with central wavelengths at the 1st and 2nd -order Raman Stokes wavelengths are also added to the hybrid SMF/DCF cavity to further reduce the lasing threshold, leading to realization of a new kind of 2nd-order RFL.

[1]  Wei Li Zhang,et al.  Low threshold 2nd-order random lasing of a fiber laser with a half-opened cavity. , 2012, Optics express.

[2]  Paul Harper,et al.  Experimental and theoretical study of longitudinal power distribution in a random DFB fiber laser. , 2012, Optics express.

[3]  C. Jørgensen,et al.  High-power supercontinuum generation in highly nonlinear, dispersion-shifted fibers by use of a continuous-wave Raman fiber laser. , 2004, Optics letters.

[4]  J D Ania-Castañón,et al.  RIN transfer in random distributed feedback fiber lasers. , 2012, Optics express.

[5]  A. Fotiadi.  Random lasers: An incoherent fibre laser , 2010 .

[6]  Mikel Bravo,et al.  Suspended-core fiber Sagnac combined dual-random mirror Raman fiber laser. , 2011, Optics express.

[7]  Z N Wang,et al.  Long-distance fiber-optic point-sensing systems based on random fiber lasers. , 2012, Optics express.

[8]  Yunjiang Rao,et al.  Study on fiber-optic low-coherence interferometric and fiber Bragg grating sensors , 2011 .

[9]  Sergei K. Turitsyn,et al.  Tunable random fiber laser , 2011 .

[10]  M Lopez-Amo,et al.  Multiwavelength Raman Fiber Lasers Using Hi-Bi Photonic Crystal Fiber Loop Mirrors Combined With Random Cavities , 2011, Journal of Lightwave Technology.

[11]  M. I. Md Ali,et al.  Brillouin-Raman comb fiber laser with cooperative Rayleigh scattering in a linear cavity. , 2006, Optics letters.

[12]  Sergei K. Turitsyn,et al.  Random distributed feedback fiber laser , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[13]  Y. Jeong,et al.  Ytterbium-doped large-core fiber laser with 1.36 kW continuous-wave output power. , 2004, Optics express.

[14]  Orlando Frazão,et al.  Raman fibre Bragg-grating laser sensor with cooperative Rayleigh scattering for strain?temperature measurement , 2009 .

[15]  C. D. de Matos,et al.  Random fiber laser. , 2007, Physical review letters.

[16]  Sergei K Turitsyn,et al.  Cascaded random distributed feedback Raman fiber laser operating at 1.2 μm. , 2011, Optics express.