Supersymetric laser arrays

TL;DR

This paper introduces supersymmetric laser arrays combining a main optical lattice with its superpartner, enabling single-mode lasing through mode coupling and supersymmetry, with potential for high-power, single-mode laser applications.

Contribution

It presents the concept of supersymmetric laser arrays and demonstrates how they can achieve singlet lasing by controlling losses and pumping, advancing laser array design.

Findings

Singlet lasing achieved over a wide parameter range.

Coupling causes degenerate modes to form doublets.

Potential for high-power, single-mode laser arrays.

Abstract

We introduce the concept of supersymmetric laser arrays that consists of a main optical lattice and its superpartner structure, and we investigate the onset of their lasing oscillations. Due to the coupling of the two constituent lattices, their degenerate optical modes form doublets, while the extra mode associated with unbroken supersymmetry forms a singlet state. Singlet lasing can be achieved for a wide range of design parameters either by introducing stronger loss in the partner lattice or by pumping only the main array. Our findings suggest the possibility of building single-mode, high-power laser arrays and are also important for understanding light transport dynamics in multimode Parity-Time symmetric photonic structures.