Title:
【発明の名称】単向二路伝送又は同時送受伝送のための光学情報伝送システム
Document Type and Number:
Japanese Patent JP3195338
Kind Code:
B2
Abstract:
For an optical communications system for diplex or duplex transmission, especially for the subscriber area, a new multiplexing process, namely, the combination of fiber mode multiplexing and wavelength multiplexing, is reported, i.e., the two signals to be transmitted are transmitted with different fiber modes (LP01, (LP11) and with different wavelengths ( lambda 1, lambda 2) unidirectionally or bidirectionally via a single waveguide. Fusion couplers with exactly similar fibers (FIG. 3) are used as system components such as multiplexers, demultiplexers, and duplexers when one of the two wavelengths is above and one is below the cutoff wavelength of the coupler waveguide and the transmission waveguide (104, 114); or fusion couplers (21, 31) with dissimilar fibers are used when both wavelengths are below the cutoff wavelength.
Inventors:
Kurt Husgenger
Application Number:
JP7855890A
Publication Date:
August 06, 2001
Filing Date:
March 27, 1990
Export Citation:
Assignee:
ALCATEL NEAMLOZE VENNOOTSHAP
International Classes:
G02B6/28; G02B6/34; G02F1/313; H04B10/12; G02B6/293; H04B10/2581; H04J14/00; H04J14/02; G02B6/24; (IPC1-7): G02B6/28; G02B6/293; G02F1/313; H04J14/00; H04J14/02
Domestic Patent References:
| JP56128041A | ||||
| JP5694250A |