Abstract

The saturable absorber properties of synthetic single-crystal diamond is demonstrated, and a Q-switched fiber laser using synthetic diamond as saturable absorber (SA) which could achieve multi-wavelength output is proposed and demonstrated. The wave length ranges from 1553-1561 nm with a spectrum spacing of 0.48 nm. The pulse-width of output pulse train varies from 6.4 μs to 3.32 μs and the corresponding repetition rate changes from 28.73 kHz to 114.7 kHz with pump powers between 84.8 to 754.3 mW. In addition, the output power and pulse energy varies from 0.8789 mW to 8.606 mW and from 30.59 nJ to 75.62 nJ respectively in the same region.

© 2019 The Author(s)