Patent
1984-11-05
1987-02-10
Sikes, William L.
G02B 626, G02B 642
Patent
active
046419144
ABSTRACT:
An optical fiber transmission path for interconnecting a transmitter and receiver for single mode operation at a predetermined wavelength. Most of the path is formed by a transmission cable made up of several optical fibers, spliced end-to-end, that are single mode at a wavelength longer than the predetermined wavelength, but possibly not single mode at the predetermined wavelength. The splice between the fibers is fabricated so as to exhibit minimized splice loss, as measured for only the fundamental mode at the predetermined wavelength. The transmission path of the invention also includes an optical fiber which is very short relative to the transmission cable and is in the path between the transmitter and the cable. The short fiber is selected to be single mode at the predetermined wavelength. A mode stripper is in the path, near the end of the transmission cable that is nearest the receiver. The mode stripper transmits only the fundamental mode at the predetermined wavelength.
REFERENCES:
patent: 4188087 (1980-02-01), D'Auria et al.
patent: 4261639 (1981-04-01), Kogelnik et al.
patent: 4341442 (1982-07-01), Johnson
patent: 4531811 (1985-07-01), Hicks
patent: 4557553 (1985-12-01), McLandrich
Hamann H. Fredrick
Rockwell International Corporation
Sewell V. Lawrence
Sikes William L.
Wise Robert E.
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