Before the deposition of your Er:Al2O3 Lively material, the coupling circuit, i.e., the strip waveguides, the mode transition tapers and the mode converters ended up included having a 800 nm thick layer of hydrogen silsesquioxane (HSQ, n ~1.forty five) to circumvent their coating Using the Energetic content, as demonstrated in https://franceso641jqv6.wikiconverse.com/user