Light detection and ranging system with photonic integrated circuit
US10627485B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2017 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Aug 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/61
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein are optical integration technologies, designs, systems and methods directed toward Optical Coherence Tomography (OCT) and other interferometric optical sensor, ranging, and imaging systems wherein such systems, methods and structures employ tunable optical sources, coherent detection and other structures on a single or multichip monolithic integration. In contrast to contemporary, prior-art OCT systems and structures that employ simple, miniature optical bench technology using small optical components positioned on a substrate, systems and methods according to the present disclosure employ one or more photonic integrated circuits (PICs), use swept-source techniques, and employ a widely tunable optical source(s).In another embodiment the system uses an optical photonic phased array. The phase array can be a static phased array to eliminate or augment the lens that couples light to and from a sample of interest or can be static and use a spectrally dispersive antenna and a tunable source to perform angular sweeping. The phased array can be active in 1 or 2 dimensions so as to scan the light beam in angle. The phased array can also adjust focus. The phased array can i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.