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1996
Journal Article
Titel
Uncladded InGaAsP/InP rib waveguides with integrated thickness tapers for efficient fibre-chip butt coupling
Abstract
The thickness of the waveguide core of uncladded InGaAsP/InP rib waveguides is tapered to fabricate new spot-size transformers without epitaxial regrowth or etching of deep grooves. The coupling loss for flat-end fibres is reduced by 7 dB at alignment tolerances of >+or-2.0 mu m for 1 dB excess loss.
Tags
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gallium arsenide
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iii-v semiconductors
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indium compounds
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optical fibre couplers
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optical losses
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optical planar waveguides
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rib waveguides
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uncladded rib waveguides
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integrated thickness tapers
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fibre-chip butt coupling
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waveguide core thickness
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spot-size transformers
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coupling loss
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flat-end fibres
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alignment tolerances
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excess loss
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1 db
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InGaAsP-InP