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Fiber optic electric field sensors are ideal for characterizing the electric field in many different systems. Unfortunately, many of these systems produce one or more noise types, like vibrational noise which contribute to a harsh sensing environment on the fiber optic sensor. When fiber optic sensors are placed in a harsh vibration environment, multiple noise types can overwhelm the measurements. This work shows how to simultaneously eliminate three different noise types in a fiber optic sensor induced by a harsh vibration environment. Specifically, nonlocalized vibration-induced interferometric noise is up converted to higher frequency bands by single-tone phase modulation. Then, localized vibrational noise, and radio frequency noise are all eliminated using a push–pull slab coupled optical sensor configuration to allow for an optical measurement of an electric field in a harsh environment.

The symmetric information rate is used to define the relationship between the APSK constellation parameters, the code rate, and the average and peak E b /N 0 . Minimizing the average E b /N 0 reproduces the DVB-S2 constellation parameters for 16- and 32-APSK. Minimizing the peak E b /N 0 produces DVB-S2 constellation parameters for 16- and 32-APSK that minimize the peak-to-average power ratio. The peak-to-average power ratio gains are less than 1 dB, but when used on coded systems with very steep decoded bit error probability vs. E b /N 0 curves, the gains can be significant.

The push-pull slab-coupled optical sensor measures a localized single electric field component with the advantage of reducing adverse strain effects for sensing in harsh vibrating environments. Its miniature size makes it ideal for compact environments.