Before the deposition from the Er:Al2O3 Energetic content, the coupling circuit, i.e., the strip waveguides, the manner changeover tapers along with the manner converters had been lined which has a 800 nm thick layer of hydrogen silsesquioxane (HSQ, n ~1.45) to avoid their coating with the active content, as demonstrated https://gracek429hpx7.blogchaat.com/profile