Analog optical transmission system

Details Analog optical transmission system Analog optical transmission system

2006-09-19

2006-09-19

Healy, Brian M. (Department: 2883)

Optical waveguides

Optical fiber waveguide with cladding

C385S024000, C385S124000, C385S141000, C398S081000, C398S148000, C359S333000, C359S334000, C359S341100

Reexamination Certificate

active

07110648

ABSTRACT:
The present invention relates to an analog optical transmission system having a construction for expanding an analog transmittable distance. The analog optical transmission system includes: a light transmitter outputting analog optical signals such as image signals modulated in accordance with electrical signals multiplexed on a frequency domain; a transmission line including a SMF of 20 km or less in the total length; and a light receiver. A dispersion compensating fiber compensating for the chromatic dispersion of the transmission line is arranged on the transmission line, and the dispersion compensating fiber satisfies one of the first condition that the chromatic dispersion is set at −250 ps
m/km or less and a length is set at 1.1 km or less, and the condition that the chromatic dispersion is set at −330 ps
m/km or less and a length is set at 1.2 km or less. Optical suppressing devices reducing the MPI noise are arranged at the end portion of the dispersion compensating fiber.

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