Spectroscopic properties of GdYCOB single crystals doped with rare-earth trivalent

Author

Sato, Yuuki ; Shoji, Ichiro ; Kurimura, Sunao ; Taira, Takunori ; Huruya, H. ; Nakao, Hayato ; Yap, Y.-K. ; Yoshimura, Masashi ; Mori, Yojiro ; Sasaki, T.

Author_Institution

Laser Res. Center for Molecular Sci., Inst. for Molecular Sci., Okazaki, Japan

fYear

2001

fDate

11-11 May 2001

Firstpage

284

Lastpage

285

Abstract

Summary form only given. Among all laser sources, the role of diode-pumped solid state lasers have become important due to their high efficiency and compactness. The intracavity frequency conversion using SHG crystal represented by LBO and KTP is necessary for traditional microchip green lasers. In the past few years, rare-earth calcium oxyborates have been investigated as new nonlinear optical materials. In this paper, we show the spectroscopic properties (absorption and emission spectra) of GdYCOB (GdYCa/sub 4/(BO/sub 3/)/sub 3/) grown by CZ methods doped with Nd/sup 3+/ or Yb/sup 3+/. This is the first report of the cross section and Stark level of rare earth trivalent doped GdYCOB to the authors´ knowledge. The compositions of samples in this paper are Yb/sub 0.063/Gd/sub 0.288/Y/sub 0.649/COB and Nd/sub 0.083/Gd/sub 0.149/Y/sub 0.768/COB respectively.

Keywords

Stark effect; calcium compounds; doping profiles; gadolinium compounds; impurity absorption spectra; infrared spectra; neodymium; optical harmonic generation; photoluminescence; solid lasers; ytterbium; yttrium compounds; CZ growth; GdYCOB single crystals; GdYCa/sub 4/(BO/sub 3/)/sub 3/; GdYCa/sub 4/(BO/sub 3/)/sub 3/:Nd; GdYCa/sub 4/(BO/sub 3/)/sub 3/:Yb; Nd/sub 0.083/Gd/sub 0.149/Y/sub 0.768/COB composition; Nd/sup 3+/ doping; SHG crystal; Stark level; Yb/sub 0.063/Gd/sub 0.288/Y/sub 0.649/COB composition; Yb/sup 3+/ doping; absorption spectra; cross section; diode-pumped solid state lasers; emission spectra; intracavity frequency conversion; laser compactness; laser efficiency; laser sources; microchip lasers; rare earth trivalent doped GdYCOB; rare-earth calcium oxyborate nonlinear optical material; rare-earth trivalent dopants; spectroscopic properties; Absorption; Calcium; Crystals; Diodes; Frequency conversion; Microchip lasers; Neodymium; Optical materials; Solid lasers; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-662-1

Type

conf

DOI

10.1109/CLEO.2001.947807

Filename

947807