Monolithically integrated magneto-optical isolators, circulators and phase shifters on SiN photonics

We report monolithically integrated magneto-optical isolators, circulators on SiN with 30 dB isolation ratio, -28 dB cross-talk, 54 nm 20 dB isolation bandwidth, and 2.7 dB insertion loss. Compact magneto-optical phase shifter arrays with V
π
L=0.3 V•cm were also developed, allowing the development of MHz speed optical phased arrays on SiN.