IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
Wide-bandwidth, low-waveguide-width-sensitivity InP-based multimode interference coupler designed by wavefront matching method
Takeshi FujisawaTsutomu KitohKei WatanabeKenya SuzukiMasaki KotokuHiroshi Takahashi
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2011 Volume 8 Issue 24 Pages 2100-2105

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Abstract

A wavefront matching design method is successfully applied to a high-index-contrast InP waveguide for the first time. Fabricated 2×2MMI coupler exhibits a 1.6 times wider operation wavelength range than a conventional MMI coupler. This coupler has less waveguide-width sensitivity and is suitable for InP-based large-scale photonic integrated circuits.

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© 2011 by The Institute of Electronics, Information and Communication Engineers
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