Abstract

This Letter presents a compact and low-loss 1×2 asymmetrical multimode interference (A-MMI) splitter in rib geometry for on-chip power monitoring at 1.55 μm, where a given alteration of the component cavity determines arbitrary values of the output power splitting ratios. The device shows reduced losses (0.40.8dB) and robustness across a 40 nm optical bandwidth (1540–1580 nm).

© 2016 Optical Society of America

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