Previous to the deposition of the Er:Al2O3 active content, the coupling circuit, i.e., the strip waveguides, the method changeover tapers and also the method converters have been protected which has a 800 nm thick layer of hydrogen silsesquioxane (HSQ, n ~1.45) to forestall their coating While using the active materials, https://ammonq012rdo4.blog2news.com/profile