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Zirconia-Erbium doped Fibers are a novel type of highly-doped fiber that allows high erbium ion concentrations to be realized in a short length of fiber without the detrimental effects of ion clustering and concentration quenching. The fiber has a multitude of novel applications, including the generation of compact optical amplifiers and single-longitudinal mode lasers. A particularly interesting application of the fiber is the development of compact fast and ultrafast pulse lasers together with carbon allotropes as passive saturable absorbers. This new systems will have high potential for a...

Fibre based multi-wavelength lasers are highly useful optical components with significant applications as cheap and compact signal sources for a variety of applications. Fibre multi-wavelength sources are of special interest due to their low cost-per-wavelength and their compatibility with the normal silica-based optical fibres used for transmission in modern optical networks. Multi-wavelength laser sources based on the Semiconductor Optical Amplifier represent the next stage of evolution in multi-wavelength sources for fibre optics; compact, energy-efficient, and simple to build. They also...