Low-loss GaAs/AlGaAs waveguide phase modulator using a W-shaped index profile
- 7 November 1988
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 53 (19) , 1803-1805
- https://doi.org/10.1063/1.99786
Abstract
We demonstrate a low-loss semiconductor optical waveguide phase modulator for the 1.5 μm wavelength region. The device, based on a p-i-n diode/heterostructure waveguide, utilizes a novel epilayer structure to reduce propagation losses associated with doped electrode layers. Propagation loss below 1 dB/cm, significantly lower than previously reported values for conventional semiconductor waveguide phase modulators, was achieved without sacrificing modulator efficiency.Keywords
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