Figure 2
From: Blueprint for Large-Scale Silicon Optical Phased Array Using Electro-Optical Micro-Ring Pixels
Coupling efficiency (a) and relative phase shift (b) with different coupling lengths and gaps. (c) Lengths of 3.1 μm and 7.4 μm under a gap of 150 nm, giving coupling efficiencies of 10% (−10 dB) and 50% (−3 dB).
