Multimode Interference couplers with reduced parasitic reflections

E. Kleijn; D. Melati; A. Melloni; Tjibbe Vries, de; M.K. Smit; X.J.M. Leijtens

doi:10.1109/LPT.2013.2295624

Multimode Interference couplers with reduced parasitic reflections

E. Kleijn, D. Melati, A. Melloni, Tjibbe Vries, de, M.K. Smit, X.J.M. Leijtens

Research output: Contribution to journal › Article › Academic › peer-review

15 Citations (Scopus)

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Abstract

Parasitic reflections can deteriorate the performance of a photonic integrated circuit. This is especially true in circuits containing amplifiers, but even in passive circuits, small reflections can already have a strong influence on circuit performance. It is known that strong reflections can be present when using a 2 × 1 multimode interference coupler (MMI) as a combiner. We investigate methods for reducing these spurious reflections in a generic integration technology. We present a novel MMI shape whose measurements show reduced reflections by 17.5 dB.

Original language	English
Pages (from-to)	408-410
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	26
Issue number	4
DOIs	https://doi.org/10.1109/LPT.2013.2295624
Publication status	Published - 2014

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abstract = "Parasitic reflections can deteriorate the performance of a photonic integrated circuit. This is especially true in circuits containing amplifiers, but even in passive circuits, small reflections can already have a strong influence on circuit performance. It is known that strong reflections can be present when using a 2 × 1 multimode interference coupler (MMI) as a combiner. We investigate methods for reducing these spurious reflections in a generic integration technology. We present a novel MMI shape whose measurements show reduced reflections by 17.5 dB.",

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AU - Smit, M.K.

AU - Leijtens, X.J.M.

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AB - Parasitic reflections can deteriorate the performance of a photonic integrated circuit. This is especially true in circuits containing amplifiers, but even in passive circuits, small reflections can already have a strong influence on circuit performance. It is known that strong reflections can be present when using a 2 × 1 multimode interference coupler (MMI) as a combiner. We investigate methods for reducing these spurious reflections in a generic integration technology. We present a novel MMI shape whose measurements show reduced reflections by 17.5 dB.

U2 - 10.1109/LPT.2013.2295624

DO - 10.1109/LPT.2013.2295624

M3 - Article

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EP - 410

JO - IEEE Photonics Technology Letters

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