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Chiral coupling between quantum emitters and evanescent fields allowsdirectional emission into nanophotonic devices and is now considered to be avital ingredient for the realization of quantum networks. However, suchcoupling requires a well defined circular dipole moment for the emitter --something difficult to achieve for solid state emitters at room temperature dueto thermal population of available spin states. Here, we demonstrate that a twolevel emitter with a randomly polarized dipole moment can be made to emitdirectionally into a circulating cavity if a separate emitter is chirallycoupled to the same cavity, for the case when both emitter-cavity couplings arestrong but in the bad-cavity regime. Our analysis of this system firstconsiders a transient scenario, which highlights the physical mechanism givingrise to the directional emission of the two level emitter into the cavity. Analternative setup involving a weak laser field continuously driving the systemis also considered, where the directionality (our proposed figure of merit forthis scheme) is shown to be significantly more robust against noise processes.The results presented here take the form of approximate analytical expressionsbacked by complete numerical simulations of the system.

Interference-induced directional emission from an unpolarized two level emitter into a circulating cavity