Creating large second-order optical nonlinearity in optical waveguides written by femtosecond laser pulses in boro-aluminosilicate glass
- 13 January 2014
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 104 (2) , 021113
Abstract
The thermal poling technique was applied to optical waveguides embedded in a commercial boro-aluminosilicate glass, resulting in high levels of induced second-order optical nonlinearity. The waveguides were fabricated using the femtosecond laser direct-write technique, and thermally poled samples were characterized with second harmonic optical microscopy to reveal the distribution profile of the induced nonlinearity. It was found that, in contrast to fused silica, the presence of waveguides in boro-aluminosilicate glass led to an enhancement of the creation of the second-order nonlinearity, which is larger in the laser written waveguiding regions when compared to the un-modified substrate. The magnitude of the nonlinear coefficient d33 achieved in the core of the laser-written waveguides, up to 0.2 pm/V, was comparable to that in thermally poled fused silica, enabling the realization of compact integrated electro-optic devices in boro-aluminosilicate glasses.Keywords
This publication has 26 references indexed in Scilit:
- Thermal poling of alkaline earth boroaluminosilicate glasses with intrinsically high dielectric breakdown strengthJournal of Applied Physics, 2012
- Time evolution of the second-order nonlinearity layer in thermally poled optical fiberApplied Physics Letters, 2006
- Hindering effect of the core-cladding interface on the progression of the second-order nonlinearity layer in thermally poled optical fibersApplied Physics Letters, 2005
- Creation of second-order nonlinearity and quasi-phase-matched second-harmonic generation in Ge-implanted fused silica planar waveguideApplied Physics Letters, 2005
- Enhanced stability of the second-order optical nonlinearity in poled glassesApplied Physics Letters, 2004
- Large second-harmonic signal in thermally poled lead glass-silica waveguidesApplied Physics Letters, 2004
- Wide wedge-shaped depletion region in thermally poled fiber with alloy electrodesOptics Express, 2004
- Writing waveguides in glass with a femtosecond laserOptics Letters, 1996
- Thermally poled glass: frozen-in electric field or oriented dipoles?Optics Communications, 1994
- Large second-order nonlinearity in poled fused silicaOptics Letters, 1991