Monolithic collimator array
US10317624B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2018 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jan 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/809
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing a monolithic array of lenslets that inject light into waveguides without the need for alignment of a separate lenslet array and waveguide array is provided. The waveguide array may be incorporated as a monolithic or fused piece with the substrate on which the lenslet array is to be written. A method of producing a flat, thin monolithic collimator array having a form corresponding to that of a PIC, with the input/output lenslet array located on the top surface of the collimator array is provided. A method for bonding a two-dimensional (2-D) array of lenslets on top of a photonic integrated circuit (PIC) substrate with a small gap for thermal expansion between lenslet blocks is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.