Abstract
We report the first high-current photodiode based on the slab-coupled optical waveguide concept. The device has a large mode (5.8 × 7.6 μm) and ultra-low optical confinement (Γ ~ 0.05%), allowing a 2-mm absorption length. The maximum photocurrent obtained was 250 mA (R = 0.8-A/W) at 1.55 μm.
© 2008 Optical Society of America
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