Design and Simulation of InP 1N Planar Optical Switch Based on Beam Deflection

Sooheuk CHE  Masaru ZAITSU  Akio HIGO  Yoshiaki NAKANO  

IEICE TRANSACTIONS on Electronics   Vol.E95-C   No.2   pp.213-217
Publication Date: 2012/02/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E95.C.213
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Photonic Devices using Nanofabrication Technology and Their Applications)
optical packet switching,  optical switch,  tunable prism,  beam deflection,  

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We propose a novel 13 planar optical switch using aspheric lenses and carrier-induced tunable prisms on InP. An input light beam is collimated by the aspheric lenses in a slab waveguide. The tunable prism, whose refractive indices are tuned by the carrier plasma effect, deflect the collimated light beam and guide it to the output ports. The switching operations of the 13 optical switch that consists of five lenses and eight prisms with a footprint of 5003500 µm are performed by three-dimensional beam propagation methods. A static switching operation with a 5-dB insertion loss and a 13-dB extinction ratio is obtained with 70-mA current injection for each prism. This device has a simple structure and low power consumption and may be useful for optical packet switching systems.