Claims
- 1. An optical fiber transmission line comprising:
- a single mode optical fiber in which a zero dispersion wavelength is varied in a longitudinal direction of said optical fiber in a wider range than dispersion wavelength variations induced by manufacturing conditions;
- wherein a difference in specific refractive index between a core and a clad of said single mode optical fiber is changed in the longitudinal direction of said optical fiber.
- 2. An optical fiber transmission line comprising:
- a single mode optical fiber in which a zero dispersion wavelength is varied in a longitudinal direction of said optical fiber in a wider range than dispersion wavelength variations induced by manufacturing conditions;
- wherein a diameter of a core of said single mode optical fiber is continuously changed in the longitudinal direction of said optical fiber; and
- wherein said optical fiber is produced by forming a preform with a forming speed thereof being changed while keeping dopant concentration constant, and drawing said preform at a constant speed.
Priority Claims (1)
Number |
Date |
Country |
Kind |
7-004514 |
Jan 1995 |
JPX |
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Parent Case Info
This is a division of application Ser. No. 08/537,449, filed Oct. 2, 1995.
US Referenced Citations (11)
Foreign Referenced Citations (2)
Number |
Date |
Country |
56-52705 |
May 1981 |
JPX |
56-52706 |
May 1981 |
JPX |
Non-Patent Literature Citations (3)
Entry |
Vengsarkar et al, "Dispersion-compensating single-mode fibers: efficient designs for first-and second-order compensation", Nov. 1992 pp. 924-926. |
A Single-Mode Fiber With Chromatic Dispersion Varying Along the Length; Bogatyre et al May 5, 1991 JLT. (Light Wave Technology). |
"Compensation of soliton broadening in nonlinear optical fibers with loss", Tajima Oct. 5, 1986 pp. 54-56 Optical Society of America. |
Divisions (1)
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Number |
Date |
Country |
Parent |
537449 |
Oct 1995 |
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