Delay equalization for single mode optical fibers

Details Delay equalization for single mode optical fibers Delay equalization for single mode optical fibers

1982-07-01

1984-11-27

Lee, John

350 9615, 350 9630, G02B 5172

Patent

active

044847955

ABSTRACT:
The source wavelength dependent delay produced in a single mode fiber is equalized by causing the emergent light beam therefrom to be incident on a dispersion element which is such as to transmit the beam of light at an angle or position dependent on the source wavelength. The transmitted beam of light is launched into a length of multimode fiber such that the beam emergent therefrom is equivalent to the single mode fiber emergent beam but with the delay thereof equalized. If the multimode fiber is step index fiber the transmitted light at which the delay is the least is launched thereinto at the maximum angle, whereas the transmitted light at which the delay is the most is launched thereinto along the axis thereof. Alternatively, a graded index fiber can be employed for the multimode fiber.

REFERENCES:
patent: 4201447 (1980-05-01), Thompson et al.
patent: 4229067 (1980-10-01), Love
patent: 4260221 (1981-04-01), Marcuse

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