Claims
- 1-38. (canceled).
- 39. An optical fiber transmission link, comprising:
a length of SMF optimized for low dispersion operation at a wavelength range of between 1300 nm to 1320 nm; and a length of DCF having a dispersion value between −100 ps/(nm·km) and −120 ps/(nm·km) at 1546 nm; wherein within a transmission band of between 1520 nm to 1570 nm the link exhibits an absolute value of residual dispersion less than 0.15 ps/km/nm.
- 40. The transmission link of claim 39 wherein the length of SMF is greater than 6 times the length of the length of DCF.
- 41. The transmission link of claim 40 wherein the length of SMF is greater than 7 times the length of the length of DCF.
- 42. The transmission link of claim 39 wherein the DCF further comprises a dispersion slope of less than −0.29 ps/(nm2·km) and greater than −0.40 ps/(nm2·km) at a wavelength of 1546 nm.
- 43. The transmission link of claim 39 wherein the DCF comprises a kappa value obtained by dividing the dispersion by the dispersion slope at 1546 nm of between 250 and 387 nm.
- 44. The transmission link of claim 39 wherein the DCF exhibits a cutoff wavelength (λc) is less than 1500 nm.
- 45. The transmission link of claim 39 wherein the DCF further comprises
an outer radius r1 of a central core segment between 1.5 and 2 microns; an outer radius r2 of a moat segment is between 4 and 5 microns; and a center radius r3 of a ring segment is between 5.5 and 7 microns.
- 46. The transmission link of claim 45 wherein the DCF further comprises:
a Δ1 that is greater than 1.6% and less than 2%, a Δ2 that is less than −0.25% and greater than −0.44%, and a Δ3 that is greater than 0.2% and less than 0.5%.
- 47. The transmission link of claim 39 wherein the DCF has an effective area (Aeff) at 1546 nm greater than 18 square microns.
- 48. The transmission link of claim 39 wherein the DCF has a bend loss less than 0.01 dB/m on a 40 mm mandrel at 1550 nm.
- 49. The transmission link of claim 39 wherein the DCF has an attenuation less than 0.6 dB/km at 1550 nm.
- 50-61 (canceled).
Parent Case Info
[0001] This application claims the benefit of and priority to U.S. Provisional Application No. 60/304,662, filed Jul. 11, 2001.
Divisions (1)
|
Number |
Date |
Country |
Parent |
10184377 |
Jun 2002 |
US |
Child |
10873603 |
Jun 2004 |
US |