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US 11,675,130 B2Granted
Splicing optical fibers to photonic integrated circuits
AssigneeCisco Technology, Inc.
InventorsNorbert Schlepple, Vipulkumar K. Patel
Life of this patent
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Abstract
Techniques for aligning each of a plurality of optical fibers for coupling to a photonic integrated circuit (PIC). Transmission is detected from each respective optical fiber to the PIC using a probe, and the respective optical fiber is aligned based on the detected transmission. Each of the plurality of optical fibers is coupled to the PIC using at least one of: (i) laser splicing, (ii) laser spot welding, or (iii) arc welding.
Claims18
A method, comprising:
- aligning each of a plurality of optical fibers for coupling to a photonic integrated circuit (PIC), comprising:
- detecting transmission from each respective optical fiber to the PIC using a probe, and aligning the respective optical fiber based on the detected transmission;
- identifying a failure in coupling a first optical fiber, of the plurality of optical fibers, to a first redundant waveguide on the PIC;
- based on the identified failure, coupling the first optical fiber to a second redundant waveguide on the PIC, wherein the first and second redundant waveguides are configured to provide an optical signal to a same endpoint on the PIC;
- and
- coupling each of the plurality of optical fibers to the PIC using at least one of:
- (i) laser splicing, (ii) laser spot welding, or (iii) arc welding.
4 more elements
A method, comprising:
- aligning each of a plurality of optical fibers for coupling to a photonic integrated circuit (PIC), comprising:
- detecting transmission from each respective optical fiber to the PIC using a probe, and aligning the respective optical fiber based on the detected transmission;
- and
- coupling each of the plurality of optical fibers to the PIC, comprising:
- identifying a failure in coupling a first optical fiber, of the plurality of optical fibers, to a first redundant waveguide on the PIC;
- and
- based on the identified failure, coupling the first optical fiber to a second redundant waveguide on the PIC, wherein the first and second redundant waveguides are configured to provide an optical signal to a same endpoint on the PIC.
4 more elements
A system, comprising:
- a photonic integrated circuit (PIC);
- and
- a plurality of optical fibers individually coupled to the PIC without using a fiber array unit (FAU),
- wherein each of the plurality of optical fibers is configured to be individually aligned with the PIC during coupling of the optical fibers to the PIC,
- wherein the each of the plurality of optical fibers is aligned with the PIC using a probe to detect feedback from a respective optical fiber to the PIC;
- wherein the PIC comprises first and second redundant waveguides configured to provide an optical signal to a same endpoint on the PIC, and wherein a first optical fiber, of the plurality of optical fibers, is coupled to the second redundant waveguide, for transmission of the optical signal to the endpoint on the PIC, based on an attempted coupling and failure in coupling the first optical fiber to the first redundant waveguide.
3 more elements
Dependencies are inferred from the claim text.