Abstract: The present invention relates to an optical fiber cable (100) comprising a core (104) with one or more optical fibers units (102), a sheath (108) surrounding the core (104), one or more strength members (110) at least partially embedded in the sheath (108) and a plurality of ripcords (112) positioned on both sides of a strength member.

Abstract: The present disclosure provides a method for stacking of a plurality of optical fibre ribbons (106). The plurality of optical fibre ribbons (106) is defined by a top surface (S1) and a bottom surface (S2). The top surface (S1) and bottom surface (S2) are defined by a plurality of elevated regions and a plurality of groove regions. The method for stacking of the plurality of optical fibre ribbons (106) includes arranging the plurality of optical fibre ribbons (106) over each other such that the plurality of elevated regions of each of the plurality of optical fibre ribbons fits over the plurality of groove regions of an adjacent optical fibre ribbon of the plurality of optical fibre ribbons (106). In addition, arrangement of the plurality of optical fibre ribbons forms an optical fibre ribbon stack (200).

Abstract: The present invention relates to padded optic fiber ribbons for dry optic fiber cables. The dry padded optic fiber ribbons include a plurality of optic fiber ribbons stacked on top of each other having a cross-sectionally rectangular shape. In addition, the dry padded optic fiber ribbons include a plurality of dry paddings. Each dry padding of the plurality of dry paddings has an inner side and an outer side. Further, the dry padded optic fiber ribbons include at least one tape wrapping around the plurality of dry paddings.

Abstract: The present invention discloses a fiber optical cable with a plurality of bendable optical fiber ribbon. The fiber optical cable with bendable ribbons increases the total fiber counts compared to conventional optical fiber ribbon cables by eliminating empty spaces of the conventional cables due to stacking of the ribbons in the cross-sectionally circular shape of the loose tubes and the cable jacket. According to an embodiment of the present invention, a bendable ribbon will further allow ribbon labeling on a flat side of the ribbon.

Abstract: The present disclosure provides a method for stacking of a plurality of optical fibre ribbons (106). The plurality of optical fibre ribbons (106) is defined by a top surface (S1) and a bottom surface (S2). The top surface (S1) and bottom surface (S2) are defined by a plurality of elevated regions and a plurality of groove regions. The method for stacking of the plurality of optical fibre ribbons (106) includes arranging the plurality of optical fibre ribbons (106) over each other such that the plurality of elevated regions of each of the plurality of optical fibre ribbons fits over the plurality of groove regions of an adjacent optical fibre ribbon of the plurality of optical fibre ribbons (106). In addition, arrangement of the plurality of optical fibre ribbons forms an optical fibre ribbon stack (200).

Abstract: The present invention relates to padded optic fiber ribbons for dry optic fiber cables. The dry padded optic fiber ribbons include a plurality of optic fiber ribbons stacked on top of each other having a cross-sectionally rectangular shape. In addition, the dry padded optic fiber ribbons include a plurality of dry paddings. Each dry padding of the plurality of dry paddings has an inner side and an outer side. Further, the dry padded optic fiber ribbons include at least one tape wrapping around the plurality of dry paddings.

Abstract: The present invention discloses a fiber optic cable with a plurality of bendable optic fiber ribbon. The fiber optic cable with bendable ribbons increases the total fiber counts compared to conventional optic fiber ribbon cables by eliminating empty spaces of the conventional cables due to stacking of the ribbons in the cross-sectionally circular shape of the loose tubes and the cable jacket. According to an embodiment of the present invention, a bendable ribbon will further allow ribbon labeling on a flat side of the ribbon.

Abstract: A method is described for compensating measurement errors of fiber Bragg grating (FBG) sensors installed in fiber cables in down-hole oil and gas environments due to hydrogen darkening. The method involves loading a fiber of known length and multiple FBG sensors in a hydrogen chamber with control of temperature, hydrogen concentration, pressure, and time and adjusting each of the variables through a test matrix while continuously measuring and recording the fiber transmission loss and FBG spectrum changes, then creating a correlation map of fiber transmission loss vs. Bragg wavelength shift, and using that map for compensating the wavelength shift of downhole installed fiber cables as a function of their hydrogen induced transmission loss through time.

Abstract: A method is described for compensating measurement errors of fiber Bragg grating (FBG) sensors installed in fiber cables in downhole oil and gas environments due to hydrogen darkening. The method involves loading a fiber of known length and multiple FBG sensors in a hydrogen chamber with control of temperature, hydrogen concentration, pressure, and time and adjusting each of the variables through a test matrix while continuously measuring and recording the fiber transmission loss and FBG spectrum changes, then creating a correlation map of fiber transmission loss vs. Bragg wavelength shift, and using that map for compensating the wavelength shift of downhole installed fiber cables as a function of their hydrogen induced transmission loss through time.