A Novel Vertical Directional Coupler Made by Graded-Index Ion-Exchanged Slab Waveguides,
Abstract
Passive waveguide components fabricated by K+ - Na+ ion-exchange in glass have demonstrated great potential for low-loss single-mode integrated optical devices. Recently, active components made by combining these ion-exchanged guides with overlayers of semiconductor have received considerable interest for optical detection applications. In this waveguide-detector geometry, single-mode surface guides are used, which are not adequate for efficient fiber-guide coupling. An improved configuration would allow for fiber coupling to a buried guide with minimal insertion loss) and efficient power transfer to a surface guide through a vertical directional coupler. Here, we report, for the first time, the fabrication and measurement of vertical directional couplers made by field-assisted K+-ion exchange in glass with comparison to modelled results.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1992
- Accession Number
- ADP008136
Entities
People
- G. L. Yip
- Justin Albert
- P. C. Noutsios
Organizations
- McGill University