Title

Investigation Of Diode-Pumped 2.8-Μm Er:Liyf4 Lasers With Various Doping Levels

Abstract

We report on efficient lasers emission of Er:LiYF4 at 2.8 μm. The crystals were pumped by InGaAs semiconductor laser emitting near 970 nm. The laser performance was investigated for different doping levels and yielded an optimum doping level of ∼15%. At this Er3+ concentration we achieved a slope efficiency of 35%, which is identical to the quantum defect. Pumping at high power levels permits a true cw output power of 1.1 W at 2.8 μm, which is of interest for several applications based on the strong water absorption in this wavelength range. © 1996 Optical Society of America.

Publication Date

4-15-1996

Publication Title

Optics Letters

Volume

21

Issue

8

Number of Pages

585-587

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OL.21.000585

Socpus ID

0002909017 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0002909017

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