Star network optical transmission system

Details Star network optical transmission system Star network optical transmission system

1989-01-23

1990-07-10

Sikes, William L.

350 9615, G02B 628

Patent

active

049403060

ABSTRACT:
A star network optical transmission system comprising a star coupler as a center node, wherein a star coupler is provided with an optical fiber exhibiting a multimode transmission characteristic to an optical signal transmitted by said star coupler at an input portion and an output portion, an optical transmission apparatus having a laser with a wavelength of .lambda. as a light source, an up optical fiber exhibiting a single mode transmission characteristic to a wavelength of .lambda. connecting the optical transmission apparatus to the star coupler, an optical reception apparatus, and a down optical fiber exhibiting a multimode transmission characteristic at a wavelength .lambda. and connecting the optical reception apparatus to said star coupler.

REFERENCES:
patent: 4089584 (1978-05-01), Polczynski
patent: 4240694 (1980-12-01), Pan
patent: 4257124 (1981-03-01), Porter et al.
patent: 4366565 (1982-12-01), Herskowitz
patent: 4580872 (1986-04-01), Bhatt et al.
patent: 4646361 (1987-02-01), Usui
patent: 4708424 (1987-11-01), Marhic
patent: 4726644 (1988-02-01), Mathis
patent: 4850042 (1989-07-01), Petronio et al.
patent: 4850043 (1989-07-01), Winston
"Optical Star Network Using Wavelength-Division Multiplexing" (by Hiroo Okuhara et al., Toshiba Review, vol. 40, No. 7, pp. 627-629, 1985).
"Broadcast Television via Passive Optical Networks" (by D. W. Faulkner, 13th ECOC Technical Digest, vol. 1, p. 283, 1987).

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