Title

Spectroscopy And Laser Test Emission In Tm3+ : Bayluf 8 Single Crystal

Keywords

2 micron laser; fluoride crystals; spectroscopy; stark structure; thulium

Abstract

A novel laser material BaYLuF8 (BYLF), doped with 12 at% of Tm3+, has been grown and optically investigated, in order to evaluate its potential performances as a 2 m laser. The BYLF crystal is interesting mainly because indications are that the mixed crystal would be sturdier than BaY2F,8 (BYF). The addition of lutetium would improve the thermo-mechanical properties of the host. Absorption, fluorescence and lifetime measurements have been performed in the temperature range 10-300 K focusing on the 3H4 and 3F4 manifolds, those involved in the laser scheme at 2 m. The Stark sublevels structure of Tm 3+ up to the 1D2 manifold has been figured out. Diode-pumped CW laser emission at 2 m has been achieved obtaining a slope efficiency of about 28% with respect to the absorbed power, by pumping along the Z-axis. A maximum output power of 240 mW was achieved by pumping along the favourable Y-axis, with an incident power of about 800 mW. © 2014 IOP Publishing Ltd.

Publication Date

1-15-2014

Publication Title

Journal of Physics D: Applied Physics

Volume

47

Issue

2

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1088/0022-3727/47/2/025101

Socpus ID

84891064755 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84891064755

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