Transverse spatial mode transformer for optical communication
US6404951B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1999 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Feb 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/2525
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A transverse spatial mode transformer for transforming an optical signal between different spatial modes is described. The transformer is based on a spatially selective change of the phase of the optical signal wavefront relative to the initial wavefront. As the phase-adjusted optical signal propagates, the transverse intensity distribution changes to correspond to the new spatial mode. The transformer can be used to change the lower order spatial mode of an optical signal to a higher order spatial mode appropriate for a dispersion compensated fiber optic communication system. The transformer can also be used to change a higher order spatial mode to a lower order spatial mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.