FIELD: optics.
SUBSTANCE: invention relates to an optical fiber and a ribbon fiber optic cable. Optical fiber comprises a glass fiber having a core and a cladding by which the core is coated. Glass fiber is coated with a coating polymer layer. Coating polymer layer has a colored layer with a thickness of 10 mcm or more. Yellowness index change rate of the coating polymer layer after aging under the influence of temperature and at humidity in a medium with a temperature of 85 °C and 85 % relative humidity (RH) for 30 days is 5 or less per day.
EFFECT: technical result of the invention is providing an optical fiber and a ribbon fiber optic cable comprising a coating polymer layer, wherein the color change with time is avoided without the delamination of color marking of the colored layer.
6 cl, 2 tbl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| OPTICAL FIBRE CORE | 2011 |
|
RU2559519C2 |
| OPTICAL FIBER AND OPTICAL FIBER MANUFACTURING METHOD | 2018 |
|
RU2760928C2 |
| OPTICAL FIBRE CORE AND OPTICAL FIBRE TAPE CORE | 2015 |
|
RU2690984C2 |
| OPTICAL FIBER | 2019 |
|
RU2780643C2 |
| RESIN COMPOSITION, OPTICAL FIBER AND METHOD FOR MANUFACTURE OF OPTICAL FIBER | 2019 |
|
RU2788910C2 |
| RESIN COMPOSITION, OPTICAL FIBER AND OPTICAL FIBER MANUFACTURING METHOD | 2019 |
|
RU2773017C1 |
| OPTICAL FIBER | 2019 |
|
RU2784910C2 |
| OPTICAL FIBER | 2017 |
|
RU2756680C2 |
| OPTICAL FIBER AND OPTICAL FIBER LACE | 2014 |
|
RU2661064C1 |
| OPTICAL FIBER WITH COLOR MARK | 1994 |
|
RU2150724C1 |
