Beaming random lasers with soliton control

Vector Soliton Fiber Lasers

Soliton trapping in fiber lasers.

We report on the soliton trapping in a fiber ring laser modelocked with a SESAM. It was observed that solitons along the two orthogonal polarization directions of the cavity with fairly large difference in central frequency and energy could be coupled together to form a group velocity locked vector soliton. In particular, due to that each of the coupled solitons forms its own soliton sidebands,...

Investigation of random lasers with resonant feedback

Y. Ling, H. Cao,* A. L. Burin, M. A. Ratner, X. Liu, and R. P. H. Chang Department of Physics and Astronomy, Materials Research Center, Northwestern University, Evanston, Illinois 60208-3112 Department of Chemistry, Materials Research Center, Northwestern University, Evanston, Illinois 60208-3113 Department of Materials Science and Engineering, Materials Research Center, Northwestern University...

Light diffusion with gain and random lasers.

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Domesticating random lasers

Random lasers are exotic light sources that emit coherent light without any of the confining mirrors that are part of a conventional laser.1, 2 Instead, the light inside a random laser is trapped by multiple scattering in a disordered medium and can thus be efficiently amplified. The downside is that random lasers emit their light at many different frequencies and in many different directions (...