Patent
Mode coupler, passive optical network system and detection method
Ning Cheng,Frank Effenberger +1 more
TLDR
In this article, a mode coupler is configured to couple a plurality of single-mode optical channels into a multimodal channel, and the optical modes corresponding to the channels in the multimode channel are detected.Abstract:
An mode coupler comprising a plurality of single mode waveguides configured to transport a plurality of single mode signals, and a detector coupled to the single mode waveguides and configured to detect the single mode signals, wherein the single mode signals are substantially coupled without loss from the single mode waveguides to the detector. Also disclosed is an Passive Optical Network System comprising a mode coupler configured to couple a plurality optical signals into a plurality of modes, and a receiver coupled to the mode coupler and configured to detect the modes to obtain the optical signals, wherein the optical signals are coupled from single mode fibers.. Also disclosed is a detection method comprising receiving a plurality of single mode optical channels, coupling the single mode optical channels into a multimode channel, and detecting the optical modes corresponding to the channels in the multimode channel.read more
Citations
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Patent
Spatially multiplexed receiver for OBI-free multipoint-to-point optical networks
TL;DR: In this paper, a single optical receiver having a large-area photodiode having an active area that is optically coupled to the plurality of optical paths provides significant commercial advantages such as lower cost and reduced size and maintenance.
References
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Patent
Optical communication network with passive monitoring
TL;DR: In this article, the authors describe a passive optical communication network where all monitoring of the transmission media and the ONUs can be performed at the central office, without active intervention at remote locations.
Journal ArticleDOI
Subcarrier multiplexing in optical communication networks
Phil A. Davies,Z. Urey +1 more
TL;DR: Subcarrier multiplexing, which uses analogue intensity modulation of optical sources with readily available microwave components, can provide an elegant method of using the optical bandwidth and is capable of graceful evolution for future networks as discussed by the authors.
Patent
Method and system for switching many-to-one redundant configuration
Yutaka Nezu,豊 祢津 +1 more
TL;DR: In this article, the authors proposed a switching method and system with a many-to-one redundant configuration of an optical subscriber line terminating part of an OSSM with a passive double star configuration.