Optoelectronic package with pluggable fiber assembly
A photonic integrated circuit (PIC) coupled to a substrate may be aligned with receptacles having guide pin structures configured to receive guide pins attached to a fiber assembly. The receptacles may be affixed to a surface of the substrate and/or the PIC to permit the fiber assembly to be removed during a solder reflow process while maintaining the alignment of the fiber assembly to the PIC when reconnected following the solder reflow process.
1. An apparatus, comprising:
a substrate including a trench;
a photonic integrated circuit (PIC) including an optical device, the PIC being disposed on a first surface portion of the substrate, wherein the PIC includes one or more optical ports located at an edge of the PIC;
a receptacle disposed in the trench of the substrate, wherein the receptacle includes a guide pin structure configured to receive a guide pin of a fiber assembly including a plurality of optical fibers, wherein the receptacle is aligned with the PIC such that the one or more optical ports are aligned to optically edge-couple, through the edge of the PIC, to the plurality of optical fibers in the fiber assembly when the guide pin of the fiber assembly is inserted into the guide pin structure of the receptacle; and
a support structure, wherein the receptacle is coupled to a second surface portion of the substrate via the support structure, the first and second surface portions being substantially co-planar.
2. The apparatus according to claim 1 , wherein the receptacle and the support structure are separate pieces.
3. The apparatus according to claim 1 , wherein the receptacle is coupled to the substrate using an adhesive formed in a gap between a surface of the receptacle and a surface of the trench.
4. The apparatus according to claim 1 ,
wherein the support structure has a first surface coupled to the receptacle and a second surface coupled to the second surface portion of the substrate.
5. The apparatus according to claim 4 , wherein the second surface of the support structure is disposed, at least partially, outside the trench.
6. The apparatus according to claim 1 , wherein the support structure is disposed, at least partially, outside the trench.
7. The apparatus according to claim 1 , wherein the one or more optical ports include ends of respective integrated waveguides.
8. The apparatus according to claim 1 , wherein the PIC is electrically connected to the substrate through a ball grid array.
9. The apparatus according to claim 1 , further comprising an interposer having a first surface proximate the substrate and a second surface opposite the first surface and proximate the PIC.
10. The apparatus according to claim 1 , further comprising:
the fiber assembly including the plurality of single-mode optical fibers, wherein the plurality of single-mode optical fibers are directly connected to the PIC when the guide pin of the fiber assembly is inserted into the guide pin structure of the receptacle.
11. The apparatus of claim 1 , wherein the receptacle is a first receptacle, and the trench is a first trench, wherein the substrate includes a second trench and the apparatus comprises a second receptacle disposed in the second trench of the substrate.
12. The apparatus of claim 11 , wherein the guide pin structure is a first guide pin structure and the guide pin is a first guide pin, wherein the second receptacle includes a second guide pin structure configured to receive a second guide pin of the fiber assembly.
13. The apparatus of claim 11 , wherein a spacing between the first and second receptacles is adjustable.