Dense Interconnect Routing of Visible Deuterated Silicon Nitride (SiNx:D - SiOy:D) Photonic Integrated Circuits. - Mohammad Rabbani; Sam Turkington; A. Abdur Rahman Akib; Keith Markham; Greg Allion; Eunso Shin; Collin Roy; Dakota Gray-Boneker; Jonathan Wierer; Fred Kish; Stanley Cheung (OFC, 2026)