Skip to main content
Fig. 4 | PhotoniX

Fig. 4

From: Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials

Fig. 4

Extinction ratio tuning via phase-shift triggered coupling coefficient modulation. a Schematic of the ring resonators under test with a drop port at the phase shifter position and the corresponding modulation of the coupling coefficients k and r. b Experimental results for the device’s through port for two switching cycles of a Sb2Se3 cell placed on the ring waveguide only, as shown in the inset. c Same as b for a Sb2Se3 cell covering both the ring waveguide and the drop port with nearly 20 dB modulation in ER.

Back to article page