IEICE Electronics Express
Online ISSN : 1349-2543
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A novel 2 × 2 multi-arm type of optical switch using multimode interference couplers
Kenichi MasudaAtsushi TateHiroyuki Tsuda
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2006 Volume 3 Issue 9 Pages 191-196

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Abstract

We have proposed a novel 2 × 2 optical switch using multimode interference (MMI) coupler. This switch comprises four arms, located between two MMI couplers, and works by controlling a phase shifter, situated in each arm. Compared with conventional Mach-Zehnder type of optical switches, BPM simulation of this device predicted a high tolerance to fabrication errors. We fabricated the device with silica waveguides, and confirmed that it functioned with an insertion loss of 4.1dB and an extinction ratio of about 20dB.

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© 2006 by The Institute of Electronics, Information and Communication Engineers
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