Fiber optics Optical communications 29 Lasers 28 Optical fiber detectors 20 Optical fibers 17 Erbium 13 Photonics 12 Optical amplifiers 11 Optical wave guides 7 Design and construction 6 Dissertations 6 Dissertations, Academic 6 Laser pulses, Ultrashort 6 Materials 6 Nonlinear optics 6 Thulium 6 Optical fiber communication 5 Testing 5 Absorption 4 Structure 4 Brillouin scattering 3 Crystal optics 3 Doped semiconductors 3 Equipment and supplies 3 Nanoparticles 3 Optical properties 3 Photonic crystals 3 Resonators 3 Single-mode optical fibers 3 Telecommunication 3