Abstract
The self-termination effect of Er laser at near 3 μm is an important issue, which significantly hinders the development of Er-based near 3 μm lasers. In this work, the self-termination behavior of some low-doped laser materials is revisited and discussed through the simple Quimby model and improved Quimby model involving Boltzmann factors. An extremely lightly doped 0.3 at.% Er:CaF2 crystal is grown to verify the results of two models. And a ∼2.8 μm CW laser with the slope efficiency of 21.4% and output power of 143 mW is obtained. The two simple models provide us a pathway for fast screening some potential laser material candidates. Furthermore, the qualitative relationship between optimum doping concentration of Er laser hosts and Z’ value of the corresponding low concentration doped ones is determined. The obtained results will be helpful for growing Er laser host with suitable doping concentration to obtain excellent laser performance.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
