Wavelength dependence of proton-exchanged LiNbO3 integrated optic directional couplers from 1.5um - 1.65um

Robert J. Feuerstein; Indra Januar; Alan Rolf Mickelson; Jon R. Sauer

doi:10.1117/12.50889

1 December 1991 Wavelength dependence of proton-exchanged LiNbO3 integrated optic directional couplers from 1.5um - 1.65um

Robert J. Feuerstein, Indra Januar, Alan Rolf Mickelson, Jon R. Sauer

Author Affiliations +

Proceedings Volume 1583, Integrated Optical Circuits; (1991) https://doi.org/10.1117/12.50889
Event: OE Fiber, 1991, Boston, MA, United States

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.

Citation Download Citation

Robert J. Feuerstein, Indra Januar, Alan Rolf Mickelson, and Jon R. Sauer "Wavelength dependence of proton-exchanged LiNbO3 integrated optic directional couplers from 1.5um - 1.65um", Proc. SPIE 1583, Integrated Optical Circuits, (1 December 1991); https://doi.org/10.1117/12.50889

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