Patent ID: 8977087
Filing Date: 2015-03-10
Classification: C03B,G02B,G02F

Abstract:
1. A tapered microstructured optical fiber for super continuum generation comprising a plurality of a first type of element haying first element diameter, d f , being arranged at a pitch of Λ, wherein said tapered optical fiber comprises a core region that is capable of guiding light at a first wavelength along a longitudinal axis of said optical fiber and a cladding region surrounding said core region, said optical fiber comprising a tapered section arranged between a first longitudinal position and a second longitudinal position, said tapered section comprising a first taper section having a first length, L 1 , over which the optical fiber is tapered down to a taper waist, and a second taper section having a second length, L 2 , over which said optical fiber is tapered up, wherein L 1 is more than about 1 m and wherein the core area at said taper waist is smaller than about 15 μm 2 .