Method of manufacturing a core collimating assembly for DWDM devices
AssigneeFoxconn Optical Technology, Inc.
InventorsDavid Ya Li, Lawrence Zhang, Xiaoxing Zhang
Life of this patent
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Abstract
A method of manufacturing a collimating assembly includes the following steps: preparing a GRIN lens subassembly; preparing a dual-fiber (DF) pigtail subassembly; fitting the GRIN lens subassembly and the DF pigtail subassembly together; applying epoxy onto a junction zone between the GRIN lens subassembly and the DF pigtail subassembly; and baking the junction zone for curing the epoxy thereof until the epoxy spreading uniformly over the junction zone due to the so-called capillarity phenomenon.
Claims12
A method of manufacturing a collimating assembly comprises steps of:
- preparing a GRIN lens subassembly employing a sleeve forming a first stepped mating end;
- preparing a collimator pigtail subassembly employing a bushing forming a second stepped mating end;
- fitting the GRIN lens subassembly and the collimator pigtail subassembly together, forming a junction zone therebetween, wherein the junction zone is defined as that area where the first and second stepped mating ends of the sleeve and the bushing overlap each other, and the junction zone includes an interspace defined between the sleeve and the bushing;
- applying adhesive into the interspace of the junction zone between the GRIN lens subassembly and the collimator pigtail subassembly;
- and baking the junction zone to cure the epoxy therein until the epoxy spreads uniformly over the junction zone due to the so-called capillarity phenomenon.
An optical assembly comprising:
- first and second subassemblies;
- said first subassembly including a GRIN lens securely surrounded by a sleeve;
- said second subassembly including a ferrule securely surrounded by a bushing;
- a pair of fibers retained within the ferrule with corresponding pigtails extending therefrom;
- wherein
- said sleeve defines a first end, said bushing defines a second end, said first and second ends complementarily comply with and overlap each other with a proper axial relationship therebetween to form a junction zone, and epoxy is applied to the junction zone for securement between the sleeve and the bushing;
- wherein
- a cavity is defined between the ferrule and the bushing of the second subassembly to receive an end portion of the first end of the sleeve of the first subassembly.
Dependencies are inferred from the claim text.