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1. (WO1998052303) OPTICAL COMMUNICATIONS SYSTEM INCLUDING ARRANGEMENT CONNECTING A MULTIMODE FIBRE TO A SINGLE MODE FIBRE

Pub. No.:    WO/1998/052303    International Application No.:    PCT/GB1998/001359
Publication Date: Fri Nov 20 00:59:59 CET 1998 International Filing Date: Thu May 14 01:59:59 CEST 1998
IPC: G02B 6/26
H04B 10/2581
Applicants: HEWLETT-PACKARD COMPANY
CUNNINGHAM, David, George
NOWELL, Mark, Charles
MUSK, Robert, William
COLES, Alistair, Neil
Inventors: CUNNINGHAM, David, George
NOWELL, Mark, Charles
MUSK, Robert, William
COLES, Alistair, Neil
Title: OPTICAL COMMUNICATIONS SYSTEM INCLUDING ARRANGEMENT CONNECTING A MULTIMODE FIBRE TO A SINGLE MODE FIBRE
Abstract:
A method and apparatus are provided for connecting an optical source to a multimode optical fibre in a multimode optical fibre communications system. A single mode fibre length (111) is provided such that optical radiation admitted from an optical source (131) at one end of the single mode fibre length is provided to a multimode optical fibre (108) at the other end of the single mode fibre length (111). This method and apparatus are used in a duplex patchcord for connecting an optical transceiver (131) to a pair of installed multimode fibres (108, 109). The second fibre in the patchcord is a multimode fibre (112) for passing optical signals to the optical receiver (132) of the transceiver.