Process for treating optical fibers by cryogenic tempering
US6109064A · kind A · utility
1Cited by
11References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B37/02718
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The transmission properties of an optical fiber are enhanced by cooling the fiber gradually to temperatures of at least -300.degree. Fahrenheit, maintaining the fiber at such reduced temperature for a time suitable to stabilize the transmission properties of the fiber, and then allowing the fiber gradually to return to normal room temperature. The heating of the fiber to restore it to room temperature in part is accomplished by transmitting through the fiber optical pulses of the frequency and repetition rate the fiber will experience in normal use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.