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 journalArticleAcademicpeer-review

15 Citations (Scopus)
7 Downloads (Pure)

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 languageEnglish
Pages (from-to)408-410
Number of pages3
JournalIEEE Photonics Technology Letters
Volume26
Issue number4
DOIs
Publication statusPublished - 2014

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