Gradient index rod collimation lens devices for enhancing optical fiber line performance where the beam thereof crosses a gap in the line
US5568578A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1994 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Dec 14, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3604
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A novel array of optical fiber beams collimator device, includes as novel mponents thereof an array of single beam collimator units. A housing is provided with a corresponding array of co-parallel lens bores between opposite sides of the housing. Each unit of the array of single beam collimator units is formed from a gradient index glass, rod-type, collimation lens disposed in the corresponding lens bore with a reinforced terminal end section of an optical fiber attached by its end face to the end face of the lens at one of the sides of the housing. The lenses of the array of units all have a common length dimension of one-quarter pitch plus a predetermined increment of length chosen for coupling maximum power through respective fiber optic lines. The terminal end sections of optical fiber attached to associated lenses of the array have their respective longitudinal axes in individual predetermined lateral spatial relationship to the central axes of their associated lens to produce couplement with generally collimated beams at the other side of the housing which are coparallel with the aforementioned axes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.