Zihe Gao, S. Fryslie, B. Thompson, Harshil Dave, K. Lakomy, P. Carney, K. Choquette
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Non-Hermitian aspects of coherently coupled vertical cavity laser arrays
Coherently coupled 1 × 2 VCSEL arrays with intentional built-in asymmetry have been designed and fabricated. Preliminary characterization shows electrically controlled mode switching and indications of parity-time symmetry breaking.