CLAIMS
What is claimed is:
1. A buffer tube (100) comprising:
one or more subunits (110), wherein the one or more subunits (110) enclosing a plurality of optical fiber ribbons (106), wherein each optical fiber ribbon of the plurality of optical fiber ribbons (106) is a rollable ribbon, wherein each optical fiber ribbon of the plurality of optical fiber ribbons (106) comprising a plurality of optical fibers (108); and
a micro sheath layer, wherein the micro sheath layer surrounds the one or more subunits (110).
2. The buffer tube (100) as recited in claim 1, further comprising a plurality of water swellable yarns, wherein the plurality of water swellable yarns is positioned along the plurality of optical fiber ribbons (106), wherein the plurality of water swellable yarns prevent ingression of water inside the plurality of optical fiber ribbons (106).
3. The buffer tube (100) as recited in claim 1, wherein the one or more subunits (110) has a coating layer, wherein the coating layer over the one or more subunits (110) is a layer of low smoke zero halogen material, wherein the coating layer over the one or more subunits (110) provides flexibility and UV resistant properties to the one or more subunits (110), wherein the coating layer has thickness of about 0.1- 0.2 millimeters, wherein the coating layer has tolerance of about + 0.05 millimeters.

4. The buffer tube (100) as recited in claim 1, wherein the one or more subunits (110) comprises the plurality of optical fiber ribbons (106) in a range of about 1 to 36.
5. The buffer tube (100) as recited in claim 1, wherein the one or more subunits (110) comprises the plurality of optical fibers (108) in a range of about 12 to 432.
6. .The buffer tube (100) as recited in claim 1, each of the plurality of optical fibers (108) has diameter of about 200 micron.
7. The buffer tube (100) as recited in claim 1, wherein each of the plurality of optical fibers (108) is a colored optical fiber, wherein color of each of the plurality of optical fibers (108) is different.
8. The buffer tube (100) as recited in claim 1, wherein each optical fiber ribbon of the plurality of optical fiber ribbons (106) comprising 12 optical fibers.
9. The buffer tube (100) as recited in claim 1, wherein the plurality of optical fiber ribbons (106) is differentiated by using a ring marking technique or by using colored binders.