147 fs, 51 MHz soliton fiber laser at 1.56 µm with a fiber-connector-type SWNT/P3HT saturable absorber

We fabricated a fiber-connector-type saturable absorber in which SWNTs and P3HT (poly-3-hexylthiophene) were coated on the connector end. The pulse width was 147 fs and the repetition rate reached as high as 51 MHz.