Low-loss strain induced optical waveguides in strontium barium niobate (Sr0.6Ba0.4Nb2O6) at 1.3 m wavelength Academic Article uri icon

abstract

  • Low-loss optical waveguides have been produced in z-cut Sr0.6Ba0.4Nb2O6 (SBN:60) and electro-optic modulation has been demonstrated at a wavelength of 1.3 m. The refractive index increase responsible for waveguiding results from a strain produced by a SiO2 film which has been deposited on the surface of the substrate at 320C. The waveguides are formed in the crystal by dry etching of channels in the strain film. The resulting optical waveguides support both polarizations. Propagation loss values of 0.7 dB/cm for TM polarization and 1.6 dB/cm for TE polarization were measured. Electro-optic modulation up to 22 MHz was performed on repoled samples using coplanar electrodes. 1995 American Institute of Physics.

published proceedings

  • Applied Physics Letters

author list (cited authors)

  • Marx, J. M., Tang, Z., Eknoyan, O., Taylor, H. F., & Neurgaonkar, R. R.

complete list of authors

  • Marx, JM||Tang, Z||Eknoyan, O||Taylor, HF||Neurgaonkar, RR

publication date

  • December 1995