Chip-scale frequency-comb assisted coherent lidar ranging with sub-micrometer precision
US12174016B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2019 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | May 13, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/56
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Systems and methods for soliton microcomb-based precision dimensional metrology via spectrally-resolved interferometry are described. In an embodiment, the system includes a dual-pumped soliton microcomb generator comprising a pump, a microresonator, and an auxiliary pump and that generates a single-soliton microcomb, an erbium-doped fiber amplifier that amplifies a C-band section of the soliton microcomb and a non-polarizing beam splitter that divides the soliton microcomb pulses into a reference arm pulse and a measurement arm pulse for an interferometer and recombines the reference arm pulse and the measurement arm pulse into a recombined beam upon their return.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.