Quantum well electroabsorption modulators at 1.55 μm using single-step selective area chemical beam epitaxial growth

Abstract
We demonstrate a novel electroabsorption modulator operating at 1.55 μm fabricated by single-step selective area chemical beam epitaxy with no post-growth processing. The modulation depth is 14.5 dB for a voltage swing of 10 V. In addition, the modulator has a tunable absorption edge determined by the size of the growth mask opening.