Fiber optic collimator system, fiber optic collimator array, and manufacturing method of the fiber optic collimator system and fiber optic collimator array system
US7357005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2005 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Apr 5, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3676
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber optic collimator system, a fiber optic collimator array, and a fiber optic collimator array system, which can reduce difficulty in an alignment process, minimize a coupling loss, and prevent the optical characteristics from deteriorating. An optical fiber is fused to one end of a GRIN lens made of quartz glass containing one or more selected from Sb2O3, Ta2O5, TiO2 and ZrO2 as a refractive index regulating substance, to form an optical fiber with a GRIN lens. Since an adhesive is not used, the core alignment of the GRIN lens and the optical fiber can be facilitated by a self alignment effect without deteriorating the optical characteristics. Moreover, the coupling loss is remarkably reduced by appropriately setting a refractive index distribution constant g of the GRIN lens. By fabricating the fiber optic collimator system, the fiber optic collimator array, the fiber optic collimator array system using the optical fiber with a GRIN lens can reduce the difficulty in the core alignment process, minimize the coupling loss, and prevent the optical characteristics from deteriorating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.