Title

Er3+- and Nd3+-doped KLiYF5 as potential gain media for GaAlAs diode laser pumped systems

Abstract

Single crystals of Er3+- and Nd3+-doped KLiYF5 have been grown by top-seeded solution growth. Large concentrations of rare-earth substituent on the Y3+ site are possible in this crystal on account of the orientation and packing of adjacent Y-F8 coordination polyhedra. Odd-parity distortions of the rare-earth site result in large absorption and emission cross sections for both Er3+ and Nd3+. The absorption, emission and lifetime spectroscopy of Er3+:KLiYF5 are reported. Applications of Er3+:KLiYF5 and Nd3+:KLiYF5 as gain media in GaAlAs diode-pumped laser devices are discussed in terms of the spectroscopy of these materials. Preliminary experiments connected with such applications are reported. Whilst pumping the materials close to 800 nm, low-threshold, high slope efficiency continuous wave laser action was achieved at 1.05 μm in Nd3+=KLiYF5 and strong upconversion photoluminescence close to 550 nm was observed in Er3+:KLiYF5. © 1998 IOP Publishing Ltd.

Publication Date

1-1-1998

Publication Title

Pure and Applied Optics (Print edition) (United Kingdom)

Volume

7

Issue

1

Number of Pages

83-97

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1088/0963-9659/7/1/012

Socpus ID

0031674261 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0031674261

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