Fused InP-GaAs vertical coupler filters
- 1 January 1999
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 11 (1) , 93-95
- https://doi.org/10.1109/68.736405
Abstract
A novel vertical coupler filter based on fused InGaAsP-InP and AlGaAs-GaAs waveguide structures is proposed and demonstrated. The large material dispersion difference between InGaAsP and AlGaAs around 1.55 /spl mu/m and similar waveguide geometries are used to realize a less sensitive polarization and narrow-band filter with two separated inputs and outputs and more than -40-dB sidelobe suppression should be possible.Keywords
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