Novel Optical Package Providing Efficient Coupling Between DFB-LD And Silicon PIC Edge Couplers With Low Return Loss

Abstract

An optical package for providing efficient coupling between a photonic device and a silicon photonic integrated-circuit chip (Si PIC) edge couplers with low return loss, as well as variations thereof, is described. The optical package may include a photonic device, a Si PIC, a single mode fiber or fiber array assembly, a lens and a spacer. The Si PIC may an input edge coupler and an output edge coupler. The single mode fiber or fiber array assembly may be aligned to the output edge coupler. The lens may be disposed between the photonic device and the input edge coupler, and may be configured to minimize a mismatch between an output spot size of the photonic device and a spot size of the input edge coupler of the Si PIC. The spacer may be bonded to a facet of the input edge coupler with an index matching fluid.

Dependencies are inferred from the claim text.