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Performance evaluation of waveguide phase modulators for coherent systems at 1.3 and 1.5 µm

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6 Author(s)
R. Tench ; Bell Laboratories, Lucent Technologies, USA ; J. -M. Delavaux ; L. Tzeng ; R. Smith
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This article describes the fabrication and performance evaluation of X -cut and Z -cut Ti:LiNbO3traveling wave waveguide phase modulators designed for coherent systems applications at 1.3 and 1.5 μm. Details of device fabrication and measurements of phase shift as a function of optical wavelength, input polarization, modulation voltage, and modulation frequency are reported. Phase modulator performance in a 40-Mbit/s self-heterodyne coherent DPSK experiment is also discussed.

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Journal of Lightwave Technology  (Volume:5 ,  Issue: 4 )