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Optical Engineering

2×2, 1×4 Ti:LiNbO3 digital optical switches
Author(s): HongSik Jung
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Paper Abstract

We propose and demonstrate a novel polarization- and wavelength-independent digital electro-optic switch in Ti:LiNbO3 with switching voltages of ±32 at 1.55 μm wavelength. This 2×2 integrated optic switch is characterized by a steplike response to the applied voltage. Switching is achieved through adiabatic mode evolution in an asymmetric waveguide junction. An average insertion loss of ~4.5 dB and polarization-independent switching with average cross talk of −12 dB are achieved. The demonstration of 1×4 polarization-independent switches with digital optical switch elements is eventually reported.

Paper Details

Date Published: 1 March 2007
PDF: 5 pages
Opt. Eng. 46(3) 034602 doi: 10.1117/1.2713381
Published in: Optical Engineering Volume 46, Issue 3
Show Author Affiliations
HongSik Jung, Hong-ik Univ. (South Korea)

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