Invention Grant
- Patent Title: Optical phase difference calculation using analog processing
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Application No.: US15959580Application Date: 2018-04-23
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Publication No.: US10509167B2Publication Date: 2019-12-17
- Inventor: Amit S. Sharma , John Paul Strachan , Marco Fiorentino
- Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
- Applicant Address: US TX Houston
- Assignee: Hewlett Packard Enterprise Development LP
- Current Assignee: Hewlett Packard Enterprise Development LP
- Current Assignee Address: US TX Houston
- Agency: Hewlett Packard Enterprise Patent Department
- Main IPC: G02B6/12
- IPC: G02B6/12

Abstract:
Systems and methods are provided for processing an optical signal. An example system may include a source disposed on a substrate and capable of emitting the optical signal. A first waveguide is formed in the substrate to receive the optical signal. A first coupler is disposed on the substrate to receive a reflected portion of the optical signal. A second waveguide is formed in the substrate to receive the reflected portion from the first coupler. A second coupler is formed in the substrate to mix the optical signal and the reflected portion to form a mixed signal. Photodetectors are formed in the substrate to convert the mixed signal to an electrical signal. A processor is electrically coupled to the substrate and programmed to convert the electrical signal from a time domain to a frequency domain to determine a phase difference between the optical signal and the reflected portion.
Public/Granted literature
- US20190324205A1 Systems and Methods for Processing an Optical Signal Public/Granted day:2019-10-24
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