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Proceedings Paper

Wavelength dependence of proton-exchanged LiNbO3 integrated optic directional couplers from 1.5um - 1.65um
Author(s): Robert J. Feuerstein; Indra Januar; Alan Rolf Mickelson; Jon R. Sauer
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Paper Abstract

Construction of a four node prototype, multi-wavelength, multi-hop, photonically switched packet network is under way at the University of Colorado. The data will occupy approximately 20 nm bandwidth centered on the erbium doped fiber amplifier gain window, 1.55 mm. The wavelength behavior of the directional couplers to be used in the switching nodes of this network is an important consideration. We describe the wavelength dependence of a series of directional couplers fabricated using the annealed, proton exchange (APE) technique. Measurements of crosstalk in the cross state, i.e. no voltage applied, versus wavelength for the range, 1.50 mm -1.65 mm are presented. It is shown that the data fit a simple expression for the crosstalk over the entire 150 nm range, using a simple first order wavelength dependence for the phase difference parameter.

Paper Details

Date Published: 1 December 1991
PDF: 6 pages
Proc. SPIE 1583, Integrated Optical Circuits, (1 December 1991); doi: 10.1117/12.50889
Show Author Affiliations
Robert J. Feuerstein, Univ. of Colorado/Boulder (United States)
Indra Januar, Univ. of Colorado/Boulder (United States)
Alan Rolf Mickelson, Univ. of Colorado/Boulder (United States)
Jon R. Sauer, Univ. of Colorado/Boulder (United States)

Published in SPIE Proceedings Vol. 1583:
Integrated Optical Circuits
Ka Kha Wong, Editor(s)

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