NOT KNOWN FACTUAL STATEMENTS ABOUT SLOT432

Previous to the deposition from the Er:Al2O3 Energetic material, the coupling circuit, i.e., the strip waveguides, the mode transition tapers as well as mode converters had been protected with a 800 nm thick layer of hydrogen silsesquioxane (HSQ, n ~1.45) to avoid their coating While using the active content, as demonstrated in Fig. one. The H