Mode locked Nd3+ and Gd3+ co-doped calcium fluoride crystal laser at dual gain lines ![open site](/images/external.gif)
Date: Mar 1, 2018
![Mode locked Nd3+ and Gd3+ co-doped calcium fluoride crystal laser at dual gain lines](https://ars.els-cdn.com/content/image/1-s2.0-S0030399217X00108-cov150h.gif)
Based on a novel disordered fluoride crystal—Nd3+ and Gd3+ co-doped CaF2, we demonstrate a dual-wavelength synchronously mode locked laser in a single cavity, for the first time. Two gain lines at 1064.2 nm and 1064.7 nm were synchronously mode locked by gain spectrum splitting method, corresponding to a 0.15 THz repetition rate. The mode locked laser shows a 6.5 ps separated pulse duration.