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Return-to-zero modulator using a single NRZ drive signal and an optical delay interferometer

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2 Author(s)
Winzer, P.J. ; Lucent Technol. Bell Labs, Holmdel, NJ, USA ; Leuthold, J.

We experimentally demonstrate and discuss a new technique for variable duty cycle return-to-zero (RZ) modulation, employing a phase modulator driven by a single electrical nonreturn-to-zero signal, and an optical delay interferometer. Unlike other methods for generating RZ, no synchronization between two electrical driving signals is needed.

Published in:

Photonics Technology Letters, IEEE  (Volume:13 ,  Issue: 12 )