Back to results
US 6,542,665 B2Granted
GRIN fiber lenses
AssigneeLucent Technologies Inc.
InventorsWilliam Alfred Reed, Mark J Schnitzer
Life of this patent
Estimating the term…
Abstract
A GRIN fiber lens has a silica-glass core whose refractive index has a radial profile. The profile has a radial second derivative whose average magnitude in the core is less than about 1.7×10−6 microns−2 times the value of the refractive index on the axis of the GRIN fiber lens.
Claims12
An apparatus, comprising:
- a GRIN fiber lens having a silica-glass core whose refractive index has a radial profile, the profile has a radial second derivative whose average magnitude in the core is less than about 1.7×10−6 microns−2 times the value of the refractive index on the axis of the GRIN fiber lens.
An apparatus, comprising:
- a first optical fiber;
- a first GRIN fiber lens attached to the first optical fiber;
- a second optical fiber;
- a second GRIN fiber lens attached to the second optical fiber;
- and
- an optical device capable of directing a portion of a light beam emitted from a free end of the first GRIN fiber lens to the second GRIN fiber lens;
- and
- wherein the GRIN fiber lenses have silica-glass cores and refractive indexes with radial profiles, the profiles having radial second derivatives with average magnitudes in cores of less than about 1.7×10−6 microns−2 times the refractive index on the axes of the respective GRIN fiber lenses.
5 more elements
Dependencies are inferred from the claim text.