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1996
Journal Article
Titel
Design of fiber-matched uncladded rib waveguides on InP with polarization-independent mode matching loss of 1 dB
Abstract
A waveguide taper design for uncladded rib or channel waveguides on InGaAsP-InP with polarization-independent coupling loss to the fiber is proposed. The spot size variation of the guided mode along the taper is investigated numerically by a two-dimensional finite difference method. By introducing thin guiding layers below the waveguide it is shown that the taper structure can be designed to have relaxed fabrication tolerances and a mode matching loss to the fiber of 1 dB.
Tags
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finite difference methods
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gallium arsenide
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iii-v semiconductors
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indium compounds
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mode matching
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optical couplers
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optical design techniques
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optical fibre couplers
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optical fibre losses
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rib waveguides
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semiconductor heterojunctions
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fiber-matched uncladded rib waveguides
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inp
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polarization-independent mode matching loss
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uncladded rib
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channel waveguides
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InGaAsP-InP
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polarization-independent coupling loss
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spot size variation
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guided mode
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two-dimensional finite difference method
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thin guiding layers
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taper structure
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relaxed fabrication tolerances
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mode matching loss