We demonstrate tunable electro-optic guiding, shaping, and switching of beams in the near infrared spectrum (λ ≃ 980 nm), typical of VCSEL technology, using biomimetic 3D funnel waveguides miniaturized into a sample of potassium-lithium-tantalate-niobate. The switchable waveguides are written using the slow photorefractive build-up of a 3D volume space-charge field caused by a diffracting continuous wave low intensity λ = 532 nm beam, and electro-optic functionality is supported by the quadratic electro-optic effect of the high-symmetry paraelectric phase.
- Nonlinear guided waves
- Nonlinear waveguides
- Optical solitons
- Optical waveguides and couplers
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics