Low dispension single mode fiber

Details Low dispension single mode fiber Low dispension single mode fiber

1982-04-01

1984-05-08

Lee, John D.

350 9634, G02B 5172

Patent

active

044471254

ABSTRACT:
A low-loss single mode fiber with low total dispersion within the wavelength range 1.25-1.385 .mu.m and low added cabling loss is disclosed. The fiber has relatively high .DELTA. to assure low cabling loss. The high .DELTA. is obtained, however, without paying a cost in high material dispersion by providing at least 20 percent of the .DELTA. by down-doping of the fiber cladding.

REFERENCES:
patent: 4217027 (1980-08-01), MacChesney et al.
patent: 4300930 (1981-11-01), Chang
patent: 4402570 (1983-09-01), Chang
Niizeki, "Single Mode Fiber at Zero-Dispersion Wavelength," Topical Mtg. on Int. & Guided Wave Optics, Salt Lake City, Jan. 1978, pp. MBI-1 to MBI-4.
White et al., "Zero Total Dispersion in Step-Index Monomode Fibres at 1.30 and 1.55 .mu.m," Electron. Lett., vol. 15, No. 13, Jun. 1979, pp. 396-397.
Ainslie et al., "Preparation of Long Lengths of Ultra-Low-Loss Single-Mode Fibre," Electron. Lett., vol. 15, No. 14, Jul. 1979, pp. 411-413.
Kawachi et al., "100 KM Single Mode VAD Fibres," Electron. Lett., vol. 17, No. 2, Jan. 1981, pp. 57-58.
Electronics Letters, vol. 15 , No. 15, "Dispersion-Free Single-Mode Fibre in 1.5 .mu.m Wavelength Region," H. Tsuchiya and N. Imoto, pp. 476-478, Jul. 19, 1979.
Electronics Letters, vol. 15, "Dispersion Minimisation in Single-Mode Fibres Over a Wide Spectral Range," K. Okamoto, T. Edahiro, A. Kawana and T. Miya, pp. 727-729, 1979.
Bell System Technical Journal, vol. 56, No. 5, "Loss Analysis of Single-Mode Fiber Splices," D. Marcuse, pp. 703-718, May-Jun. 1977.

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