Development of two-color synchronized ultrashort pulse fiber laser using trapped pulse amplification

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In this work, we investigated passively synchronized two color ultrashort pulse fiber laser using trapped pulse amplification in birefringent fibers. First, the characteristics of trapped pulse amplification were investigated both numerically and experimentally. The coherent ultrashort pulse generation from ASE noise was successfullyconfirmed. Then, an ultrashort pulse fiber laser using carbon nanotube was developed as pump pulse source. An additional cavity was combined with the developed fiber laser and optical pulse amplification was confirmed. In the developed cavity, two color synchronized pulse oscillation was confirmed numerically. It is expected that the two color synchronized pulse laser would be demonstrated using the cavity stabilization technique.