TY - JOUR

T1 - Second harmonic generation of continuous wave ultraviolet light and production of β-BaB2O4 optical waveguides

AU - Degl'Innocenti, Riccardo

AU - Guarino, A.

AU - Poberaj, G.

AU - Günter, P.

PY - 2006/7/24

Y1 - 2006/7/24

N2 - We report on the generation of continuous-wave (cw) ultraviolet (UV) laser light at λ=278 nm by optical frequency doubling of visible light in β-BaB2O4 waveguides. Ridge-type waveguides were produced by He+ implantation, photolithography masking, and plasma etching. The final waveguides have core dimension of a few μm2 and show transmission losses of 5 dB/cm at 532 nm and less than 10 dB/cm at 266 nm. In our first experiments, a second harmonic power of 24 μW has been generated at 278 nm in an 8 mm long waveguide pumped by 153 mW at 556 nm.

AB - We report on the generation of continuous-wave (cw) ultraviolet (UV) laser light at λ=278 nm by optical frequency doubling of visible light in β-BaB2O4 waveguides. Ridge-type waveguides were produced by He+ implantation, photolithography masking, and plasma etching. The final waveguides have core dimension of a few μm2 and show transmission losses of 5 dB/cm at 532 nm and less than 10 dB/cm at 266 nm. In our first experiments, a second harmonic power of 24 μW has been generated at 278 nm in an 8 mm long waveguide pumped by 153 mW at 556 nm.

U2 - 10.1063/1.2234275

DO - 10.1063/1.2234275

M3 - Journal article

AN - SCOPUS:33746601174

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 4

M1 - 041103

ER -