Ueda, Y.; Ogiso, Y.; Kashio, N.; Hashizume, Y.; Kikuchi, N.; Ishikawa, M.; Kohtoku, M.: 'Compact InP spot-size converter with vertically tapered core layer formed by micro-loading effect', Electronics Letters, 2017, 53, (12), p. 797-799, DOI: 10.1049/el.2017.0711
IET Digital Library, https://digital-library.theiet.org/;jsessionid=3kguib9pmw6dm.x-iet-live-01content/journals/10.1049/el.2017.0711