A Method for the Local Incorporation of Er3+ into LiNbO3 Guided Wave Optic Devices by Ti Co-Diffusion,
Abstract
Optical amplification has been demonstrated in waveguides fabricated in Nd-doped LiNbO3 grown from a melt and in planar diffused Er:LiNbO3. Such substrates are, however, not compatible with guided wave integrated optics since absorption will occur in every section of the waveguide which is not optically pumped to transparency. Lateral confinement of the gain medium is also necessary to avoid absorption of the evanescent field. We report a method for local incorporation of Er3+ which significantly enhances the diffusivity of the rare earth ion and is compatible with standard Ti:LiNbO3 photolithographic processing.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1992
- Accession Number
- ADP008178
Entities
People
- D. M. Gill
- L. Mccaughan
Organizations
- University of Wisconsin–Madison