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Compact integrated optical directional coupler with large cross section silicon waveguides
, Juby P. George,
Published in SPIE
2010
Volume: 7719
   
Abstract

Compact integrated optical directional couplers with symmetrically- and asymmetrically etched S-bend waveguides on SOI platform have been designed, fabricated and characterized. We have found that the directional couplers with asymmetrically etched waveguide structures can increase the device compactness to about 4 to 5 times that of the conventional symmetrically etched bend waveguide structures without compromising much on the optical loss budgets. The over all waveguide loss and loss per S-bend have been measured to be ∼ 0.5 dB/cm and ∼ 1 dB, respectively. The directional couplers are found to be polarization dependent (up to ∼ 2 dB) and nearly wavelength independent (1510 nm < λ < 1600 nm). © 2010 Copyright SPIE - The International Society for Optical Engineering.

About the journal
JournalData powered by TypesetProceedings of SPIE - The International Society for Optical Engineering
PublisherData powered by TypesetSPIE
ISSN0277786X
Open AccessNo
Concepts (17)
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    BEND WAVEGUIDE
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    LARGE CROSS-SECTIONS
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    OPTICAL DIRECTIONAL COUPLERS
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    SILICON ON INSULATOR
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    Silicon photonics
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    SILICON WAVEGUIDE
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    WAVEGUIDE LOSS
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    WAVEGUIDE STRUCTURE
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    Directional couplers
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    Integrated circuits
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    Integrated optics
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    Optical communication equipment
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    Optical materials
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    Photonic devices
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    Photonics
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    Waveguide components
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    Optical waveguides