Measurement of mode splitting in asymmetric Y-junctions

J.J.G.M. van der Tol; J.H. Laarhuis; Jan Laarhuis

doi:10.1109/68.136484

Measurement of mode splitting in asymmetric Y-junctions

J.J.G.M. van der Tol, J.H. Laarhuis, Jan Laarhuis

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Abstract

A measurement procedure is presented for the determination of mode splitting (or mode sorting) in asymmetric Y-junctions. This procedure avoids measurement errors introduced by bends, tapers, small damages in the waveguides outside the coupling region, variation in fiber-chip coupling, etc. It is based on the analysis of the normalized coupled power in an optical coupler in which a mode splitter is used. The method is illustrated with a mode splitter on lithium niobate. A value of 29.2+or-0.5 dB for the suppression of the unwanted mode is found, showing the applicability of the procedure.

Original language	Undefined
Pages (from-to)	454-457
Journal	IEEE photonics technology letters
Volume	4
Issue number	5
DOIs	https://doi.org/10.1109/68.136484
Publication status	Published - 1992

Keywords

IR-97936
METIS-111547

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10.1109/68.136484

00136484
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Cite this

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title = "Measurement of mode splitting in asymmetric Y-junctions",

abstract = "A measurement procedure is presented for the determination of mode splitting (or mode sorting) in asymmetric Y-junctions. This procedure avoids measurement errors introduced by bends, tapers, small damages in the waveguides outside the coupling region, variation in fiber-chip coupling, etc. It is based on the analysis of the normalized coupled power in an optical coupler in which a mode splitter is used. The method is illustrated with a mode splitter on lithium niobate. A value of 29.2+or-0.5 dB for the suppression of the unwanted mode is found, showing the applicability of the procedure.",

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T1 - Measurement of mode splitting in asymmetric Y-junctions

AU - van der Tol, J.J.G.M.

AU - Laarhuis, J.H.

AU - Laarhuis, Jan

PY - 1992

Y1 - 1992

N2 - A measurement procedure is presented for the determination of mode splitting (or mode sorting) in asymmetric Y-junctions. This procedure avoids measurement errors introduced by bends, tapers, small damages in the waveguides outside the coupling region, variation in fiber-chip coupling, etc. It is based on the analysis of the normalized coupled power in an optical coupler in which a mode splitter is used. The method is illustrated with a mode splitter on lithium niobate. A value of 29.2+or-0.5 dB for the suppression of the unwanted mode is found, showing the applicability of the procedure.

AB - A measurement procedure is presented for the determination of mode splitting (or mode sorting) in asymmetric Y-junctions. This procedure avoids measurement errors introduced by bends, tapers, small damages in the waveguides outside the coupling region, variation in fiber-chip coupling, etc. It is based on the analysis of the normalized coupled power in an optical coupler in which a mode splitter is used. The method is illustrated with a mode splitter on lithium niobate. A value of 29.2+or-0.5 dB for the suppression of the unwanted mode is found, showing the applicability of the procedure.

KW - IR-97936

KW - METIS-111547

U2 - 10.1109/68.136484

DO - 10.1109/68.136484

M3 - Article

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EP - 457

JO - IEEE photonics technology letters

JF - IEEE photonics technology letters

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