Low-threshold laser in a high-index-contrast double tungstate waveguide

Author

Geskus, D. ; Aravazhi, S. ; Wörhoff, K. ; Pollnau, M.

Author_Institution

Integrated Opt. Microsyst. (IOMS) Group, Univ. of Twente, Enschede, Netherlands

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

The paper reports the laser emission from an enhanced-index-contrast KYW waveguide fabricated by co-doping the active layer with Lu and Gd ions. Both, Lu³⁺ and Gd³⁺ possess higher electron densities than Y³⁺, thus increasing the refractive index. The emission wavelength varied from 1010 nm to 1040 nm, strongly depending on the alignment, which was probably caused by the etalon effects of the gaps between the mirrors and the endfaces.

Keywords

electron density; gadolinium; lutetium; optical waveguides; potassium compounds; refractive index; solid lasers; waveguide lasers; yttrium compounds; KY(WO₄)₂:Lu,Gd; codoping; electron densities; emission wavelength; enhanced-index-contrast waveguide; etalon effects; high-index-contrast double tungstate waveguide; laser emission; low-threshold laser; mirrors; refractive index; wavelength 1010 nm to 1040 nm; Laser excitation; Laser modes; Mirrors; Optical pumping; Optical refraction; Optical waveguides; Planar waveguides; Power lasers; Pump lasers; Waveguide lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5196490

Filename

5196490