Silica-waveguide thermooptic phase shifter with low power consumption and low lateral heat diffusion

Bo Asp Møller Andersen; Lars Jensen; Christian Laurent-Lund; Carsten Thirstrup

doi:10.1109/68.262559

Silica-waveguide thermooptic phase shifter with low power consumption and low lateral heat diffusion

Bo Asp Møller Andersen, Lars Jensen, Christian Laurent-Lund, Carsten Thirstrup

Technical University of Denmark

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Abstract

A thermooptic (TO) phase shifter consisting of a thin film heater on the top of a loaded stripline silica waveguide on a silicon substrate is shown to exhibit faster time response than reported for phase shifters based on a buried silica waveguide configuration. The risetime was measured to be 0.24 ms, which is in good agreement with calculated thermal distributions in the structures. The lateral heat diffusion distance in the loaded stripline structure is shown to be smaller than in buried waveguide structures. This implies small thermal crosstalk and suggests a high-level integration of adjacent waveguides

Original language	English
Journal	I E E E Photonics Technology Letters
Volume	5
Issue number	12
Pages (from-to)	1415-1418
ISSN	1041-1135
DOIs	https://doi.org/10.1109/68.262559
Publication status	Published - 1993

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Copyright: 1993 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

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title = "Silica-waveguide thermooptic phase shifter with low power consumption and low lateral heat diffusion",

abstract = "A thermooptic (TO) phase shifter consisting of a thin film heater on the top of a loaded stripline silica waveguide on a silicon substrate is shown to exhibit faster time response than reported for phase shifters based on a buried silica waveguide configuration. The risetime was measured to be 0.24 ms, which is in good agreement with calculated thermal distributions in the structures. The lateral heat diffusion distance in the loaded stripline structure is shown to be smaller than in buried waveguide structures. This implies small thermal crosstalk and suggests a high-level integration of adjacent waveguides",

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note = "Copyright: 1993 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE",

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T1 - Silica-waveguide thermooptic phase shifter with low power consumption and low lateral heat diffusion

AU - Andersen, Bo Asp Møller

AU - Jensen, Lars

AU - Laurent-Lund, Christian

AU - Thirstrup, Carsten

N1 - Copyright: 1993 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

PY - 1993

Y1 - 1993

N2 - A thermooptic (TO) phase shifter consisting of a thin film heater on the top of a loaded stripline silica waveguide on a silicon substrate is shown to exhibit faster time response than reported for phase shifters based on a buried silica waveguide configuration. The risetime was measured to be 0.24 ms, which is in good agreement with calculated thermal distributions in the structures. The lateral heat diffusion distance in the loaded stripline structure is shown to be smaller than in buried waveguide structures. This implies small thermal crosstalk and suggests a high-level integration of adjacent waveguides

AB - A thermooptic (TO) phase shifter consisting of a thin film heater on the top of a loaded stripline silica waveguide on a silicon substrate is shown to exhibit faster time response than reported for phase shifters based on a buried silica waveguide configuration. The risetime was measured to be 0.24 ms, which is in good agreement with calculated thermal distributions in the structures. The lateral heat diffusion distance in the loaded stripline structure is shown to be smaller than in buried waveguide structures. This implies small thermal crosstalk and suggests a high-level integration of adjacent waveguides

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DO - 10.1109/68.262559

M3 - Journal article

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JO - I E E E Photonics Technology Letters

JF - I E E E Photonics Technology Letters

IS - 12

ER -

Silica-waveguide thermooptic phase shifter with low power consumption and low lateral heat diffusion

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