(19)
(11) EP 1 012 646 A1

(12)

(43) Date of publication:
28.06.2000 Bulletin 2000/26

(21) Application number: 97910697.8

(22) Date of filing: 08.10.1997
(51) International Patent Classification (IPC)7G02B 6/293, H04J 14/02
(86) International application number:
PCT/US9715/738
(87) International publication number:
WO 9815/861 (16.04.1998 Gazette 1998/15)
(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 10.10.1996 US 728591

(71) Applicant: Tyco Submarine Systems Ltd.
Eatontown, NJ 07724 (US)

(72) Inventor:
  • PEDERSEN, Bo
    Rumson, NJ 07760 (US)

(74) Representative: VOSSIUS & PARTNER 
Postfach 86 07 67
81634 München
81634 München (DE)

   


(54) METHOD AND APPARATUS FOR COMBINING ADD/DROP OPTICAL SIGNAL LINES FROM A PLURALITY OF BRANCHING UNITS