1. Double-Coupler Double-Ring (DCDR)

DCDR has potential applications in optical communications networks and other areas. It is composed of two important components, optical coupler and optical ring. As a direct application of our framework, we formalize the stability and the resonance of this device.

2. Add/Drop Filter

Add/Drop filter is useful element for wavelength division multiplexed (WDM) communications. Add/Drop filters is attractive candidate for this purpose because it can potentially realize the narrowest line width for a given device size.