Phase front shaping in one and two-dimensional optical phased arrays
US11003045B2 · kind B2 · utility
6Cited by
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24Claims
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Assignee
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Key dates
| Filing date | Jan 31, 2018 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Oct 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Aspects of the present disclosure describe optical phased array structures and devices in which hyperbolic phase envelopes are employed to create focusing and diverging emissions in one and two dimensions. Tuning the phase fronts moves focal point spot in depth and across the array. Grating emitters are also used to emit light upward (out of plane). Adjusting the period of the gratings along the light propagation direction results in focusing the light emitted from the gratings. Changes in the operating wavelengths employed moves the focal spot along the emitters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.