High energy directly pumped Ho:YLF laser | Zendy

Mulugeta Petros | Zendy; Jirong Yu | Zendy; Upendra N. Singh | Zendy; Norman P. Barnes | Zendy

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High energy directly pumped Ho:YLF laser

Author(s) -

Mulugeta Petros,

Jirong Yu,

Upendra N. Singh,

Norman P. Barnes

Publication year - 2000

Publication title -

advanced solid-state lasers

Language(s) - English

Resource type - Conference proceedings

DOI - 10.1364/assl.2000.mc3

Subject(s) - laser , materials science , crystal (programming language) , doping , optics , laser pumping , manifold (fluid mechanics) , slope efficiency , ion , optoelectronics , fiber laser , chemistry , physics , computer science , mechanical engineering , organic chemistry , programming language , engineering

The most commonly used crystal architecture to produce 2mum laser is codoping Ho and Tm into a single host crystal. In this method, the stored energy transfer from the Tm 3F4 to the Ho 5I7 manifold is not fast enough to warrant high efficiency for short pulse applications. By separating the Ho and the Tm ions and doping the Tm in YALO3 and the Ho in YLF, we were able to directly pump the Ho 5I7 manifold with 1.94 mum. The Ho:YLF laser has produced 33 mJ at 2.062 mum with a quantum efficiency of 0.88. The performance of each laser will be presented.

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