Claims
- 1. An optical fiber comprising:
a) a cylindrical section; b) an endface wherein the optical fiber has a D-shape at the endface; c) a tapered section disposed between the cylindrical section and the endface, wherein the tapered section has a flat side disposed at an angle with respect to a fiber axis.
- 2. The optical fiber of claim 1 wherein the angle is in the range of 0.01 to 5 degrees.
- 3. The optical fiber of claim 1 wherein the angle is in the range of 0.1 to 2 degrees.
- 4. The optical fiber of claim 1 wherein the taper extends over a length in the range of 100-10000 microns.
- 5. The optical fiber of claim 1 wherein the taper extends over a length in the range of 300-3000 microns.
- 6. An optical communications device comprising:
a) a diffused optical waveguide; b) an optical fiber coupled to the diffused optical waveguide, wherein the optical fiber comprises:
1) a cylindrical section; 2) an endface wherein the optical fiber has a D-shape at the endface; 3) a tapered section disposed between the cylindrical section and the endface, wherein the tapered section has a flat side disposed at an angle with respect to a fiber axis.
- 7. An optical fiber comprising:
a) a cylindrical section with a round cross-section; b) an endface wherein the optical fiber has a D-shape cross-section at the endface; c) a tapered section disposed between the cylindrical section and the endface, wherein the tapered section comprises a smooth transition between the cylindrical section and the D-shape.
- 8. The optical fiber of claim 7 wherein the tapered section is formed by polishing.
- 9. The optical fiber of claim 7 wherein the tapered section is formed by heat and compression.
RELATED APPLICATIONS
[0001] The present application claims the benefit of priority from copending provisional patent application No. 60/280,657 filed on Mar. 30, 2001 and which is hereby incorporated by reference.
Provisional Applications (1)
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Number |
Date |
Country |
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60280657 |
Mar 2001 |
US |