Abstract
Intense Stark resonance absorptions near 10.7 μm of the R (18) and R (24) lines and a weaker absorption of the R (26) line of the isotopic C13O216 laser by N14H3 are reported. Wideband modulation experiments with an N14H3 Stark cell and the R (18) line are presented. Key modulation features are the 2‐ns rise time, high modulation depths, low power dissipation, short Stark modulator cell (10 cm), high saturation intensity (≳8 W/cm2), new spectral features of the modulated signal versus Stark bias, and a demonstration of 180‐Mbit random word modulation.