Abstract
We demonstrated a passively mode-locked thulium-doped fiber (TDF) laser with a repetition rate of 736 kHz, the lowest repetition rate at 2 µm to the best of our knowledge. Numerical simulation was carried out to design the most suitable all-fiber laser configuration. The laser was built in reference to the simulation, where a nonlinear polarization rotation technique and two stages of TDF amplifier were successfully applied. The laser stably delivers fs pulses as short as 173 fs with an average output power of 1 mW. A wide spectrum of 28 nm in FWHM was observed due to large total nonlinearity per roundtrip.
Full Text
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call