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Published on: January 28, 2019
Low-loss and low-drive-voltage electro-optical phase modulator at 10.6 microm
Abstract:
We present the experimental performance of a 16-mm-long phase modulator in the 10.6-microm wavelength range using the electro-optical effect in a InP/Ga(0.47) In(0.53) As-based rib waveguide. Making use of the Fabry-Perot behavior of this modulator due to reflections on the cleaved facets of the guide, we demonstrate a drive voltage lower than 100 V combined, for the first time to our knowledge in this range, with propagation losses of less than 1.6 dB/cm. Moreover, the bandwidth of this modulator is greater than 250 MHz.
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