All-solid-state mode-locked fiber laser operated in visible region using Pr-doped fluoride glass

本研究的目的是利用掺Pr^<3+>的氟化物玻璃材料研制一种可见光锁模激光器，使我们能够在可见光区连续调谐激光波长。对于被动锁模，我们研究了可见光区的一些潜在的可饱和吸收体。我们成功地证明了Cr^<4+>：YAG晶体、ZnSeS胶体着色玻璃和半导体多层膜反射镜在639nm附近具有饱和吸收。首次实现了639nm和607nm的被动调Q。

Development of a visible mode-locked laser utilizing Pr^<3+>-doped fluoride glass material that enables us continuous laser wavelength tuning in the visible region was aimed in this study. For passive modelocking, we investigated some potential candidates for saturable absorber in the visible region. We successfully proved that a Cr^<4+>: YAG crystal, a ZnSeS colloidally colored glass, and a semiconductor multi-layer mirror can exhibit saturable absorption around639nm. We demonstrated passive Q-switching at639and607nm for the first time.