Patent ID: 7808005

Claim:
A light-emitting device, comprising: a light-emitting structure including an active region designed to emit electromagnetic radiation having a first selected frequency; a first photonic grating spaced from the active region and capable of supporting a first leaky guided mode that extends within the active region of the light-emitting structure, the first leaky guided mode having a first mode frequency approximately equal to the first selected frequency emitted by the active region and a first mode wavevector that is approximately equal to a reciprocal lattice vector of the first photonic grating, wherein the light-emitting structure comprises a first light-emitting structure that includes the active region designed to emit electromagnetic radiation at the first selected frequency and a second light-emitting structure designed to emit electromagnetic radiation at a second selected frequency; and at least a second photonic grating positioned between the light-emitting structure and the first photonic grating, the at least a second photonic grating capable of supporting a second leaky guided mode that extends within the second light-emitting structure, the second leaky guided mode having a second mode frequency approximately equal to the second selected frequency emitted by the active region and a second mode wavevector that is approximately equal to a reciprocal lattice vector of the at least a second photonic grating.