Optical fiber coating compositions and coated optical fibers

A coated optical fiber comprising;

• an optical fiber which comprises at least a core and a cladding;
• and
• a cured coating encircling said optical fiber, said coating having a Young's modulus of at least about 950 MPa, a film to film coefficient of friction of less than about 0.44, and a thickness of more than about 5 microns.

A method of making a coated optical fiber comprising the steps of:

• coating an optical fiber with an UV curable coating composition, and
• curing the composition to yield a cured coating having a Young's modulus of at least about 950 MPa, a film to film coefficient of friction of less than about 0.44, and a thickness of greater than about 5 microns.

A coated optical fiber comprising:

• an optical fiber comprising a core encompassed by a cladding;
• and
• a cured coating encompassing said cladding, said coating having a Young's modulus of at least about 400 MPa, a fiber to fiber coefficient of friction of less than about 0.74, said fiber to fiber coefficient of friction being measured at a speed of about 0.423 cm/sec and with a weight of about 100 grams, and a thickness of more than about 5 microns.