Single-mode optical fiber tap

Details Single-mode optical fiber tap Single-mode optical fiber tap

1988-01-20

1989-11-28

Lee, John D.

350 9616, 350 9629, G02B 626

Patent

active

048833355

ABSTRACT:
An optical power tap is disclosed which allows effectively nonreciprocal injection and removal of power at each node of a single-mode optical fiber local area network. The power tap uses a wavelength-selective directional coupler to inject and remove power from the bus, and a nonlinear converter in the bus to convert light from one wavelength to another. In the specific embodiment disclosed a neodymium-doped silica fiber is used as a nonlinear material to convert light from one wavelength to another.

REFERENCES:
patent: 4674380 (1987-06-01), Shaw et al.
patent: 4723824 (1988-02-01), Shaw et al.
Apply Phys. let. 45(5), Sep. 1, 1984, "Integrated-Optical Frequency Translator etc." F. Heismann et al., pp. 490-492.
"Integrated Optics for Fibre Communications Systems", Optical Fibre Comm., 16-18 Sep. 1975, Ash et al, pp. 131-134.
Jour. Lightwave Tech. vol. LT-3, No. 3, Jun. 1985, "Increased Power Injection etc." T. H. Wood, pp. 537-543.
Elec. Lett., vol. 21, No. 17, Aug. 15, 1985, "Directional-Coupler Filter etc." D. Marcuse, pp. 726-727.
Elec. Lett., vol. 21, No. 17, Aug. 15, 1985, "Fabrication of Low-Loss Optical etc." S. B. Poole et al, pp. 737-738.
Elec. Lett, vol. 21, No. 17, Aug. 15, 1985, "Neodymium-Doped Silica Single-Mode etc." R. J. Mears et al, pp. 738-740.
Elec. Lett, vol. 21, No. 17, Aug. 15, 1985, "In-Line Optical-Fibre Filter etc." M. S. Whelan et al, pp. 724-725.

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