Elliptical core fiber with axially decreasing aspect ratio and method
US6195492A · kind A · utility
1Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Dec 16, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B2205/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A single-mode elliptical core optical fiber (15) suitable for the transmission of solitons has a core aspect ratio that changes along the length of the fiber to provide a fiber dispersion that monotonically decreases along the fiber from one end thereof to the other. The fiber preform (30) is drawn from a draw blank (10) having a glass core (11) surrounded by cladding glass (12) and having apertures (13) that are diametrically opposed with respect to the core (11). The cross-sectional area of the void space within the apertures (13) varies with respect to the longitudinal distance along the apertures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.