Before the deposition with the Er:Al2O3 active product, the coupling circuit, i.e., the strip waveguides, the mode changeover tapers and also the manner converters had been included with a 800 nm thick layer of hydrogen silsesquioxane (HSQ, n ~one.45) to circumvent their coating While using the Energetic content, as demonstrated https://elleryk297yfl2.wikihearsay.com/user