The building and characterization of a stretched-pulse additive pulse mode-locking fiber ring laser with 2 modes of operation and an amplification stage
Date
2011
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Publisher
University of Delaware
Abstract
Ultrafast lasers have been researched over 40 years now. Fiber lasers is a newer area with almost 30 years of development at a point where it has matured enough to be present in many industry applications nowadays, where the generation of shorter and more energetic pulses is possible thanks to the development of rare earth doped fibers. This is a great deal of importance for telecommunication applications, medical applications and materials processing in industrial environments. In the present work, we present a stretched-pulse additive-pulse modelocking fiber ring laser capable of producing sub 100 fs optical pulses. The cavity is capable of operating in two regimes called Noise-like soliton regime and Gain-guided soliton regime, whereas maintaining small positive net dispersion on a cavity build with normal and anomalous dispersion segments of fiber with a cavity less than 10 m long. Additionally a pulse optimization and amplification stage is studied and characterized in a second stage for amplification and compression of the output, using a large-mode area Erbium-doped fiber amplifier based prechired amplifier and compressor proposed in the literature, where these two modes can be enhanced to increase the output power from the laser.