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We report on the first experimental observation of bound states of vector dissipative solitons (VDSs) in an erbium-doped fiber laser mode locked with a semiconductor saturable absorber mirror and operated in the normal dispersion regime. Bound states of either the coherently coupled VDSs or the incoherently coupled VDSs were obtained. No polarization evolution was observed for either of the bound...
Coexistence of scalar dissipative solitons along the two orthogonally polarized directions of a fiber laser is observed. Due to the large cavity birefringence, the dissipative solitons along different polarization axes have different group velocities.
Experimental observation of different types of vector solitons such as the bright-bright, dark-dark, and dark-bright vector soliton in single mode fiber lasers is reported. Experimental techniques for observing each of the vector solitons are explained. Special features of the vector solitons in fiber lasers are numerically simulated and compared with the experiments.
We demonstrated lasing in a microscopic cavity made of two nanoparticles in a homogeneous gain medium. The particles, either dielectric or metallic, acted as nano-mirrors. Such laser had well-defined lasing frequencies and produced directional output.
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