Passively Q switched Tm doped f iber lasers with carbon nanotubes

We demonstrate a passively Q-switched Tm-doped fiber laser with carbon nantubes (CNTs), yielding a maximum output average power of around 82 mW and the corresponding pulse energy of 1.2 \mu J. The laser operates at ~1.985 \mu m with repetition rates ranging from 26 to 69 kHz and pulse-duration from