Toroidal micro lens array for use in a wavelength selective switch
US10042121B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2017 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Mar 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/31
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device includes a plurality of optical ports for receiving optical beams. The optical device also includes a plurality of toric micro lenses each receiving one of the optical beams from a respective one of the optical ports. A dispersion element is provided for spatially separating in a dispersion plane the optical beam into a plurality of wavelength components. At least one focusing element is provided for focusing the plurality of wavelength components. A programmable optical phase modulator is also provided for receiving the focused plurality of wavelength components. The modulator is configured to selectively direct the wavelength components to prescribed ones of the optical ports. The toric lenses impart positive power to the optical beams in the port plane and negative optical power to the optical beams in a plane orthogonal to the port plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.