摘要:
In accordance with the teachings of the present invention, a system and method for managing communication in a hybrid passive optical network (HPON) is provided. In a particular embodiment, the method includes transmitting, at a first wavelength, a first configuration message on the HPON. The method also includes receiving at one or more of a plurality of receivers at an optical line terminal (OLT) one or more configuration response messages from one or more optical network units (ONUs) in a first set of ONUs. The method further includes, based on the configuration response messages from the first set of ONUs, associating, in a database, each ONU in the first set of ONUs with the first wavelength and with the receiver receiving the configuration response message from the ONU. The method also includes, after transmitting the first configuration message, transmitting, at a second wavelength, a second configuration message on the HPON. The method further includes receiving at one or more of the plurality of receivers at the OLT one or more configuration response messages from one or more ONUs in a second set of ONUs, wherein the ONUs in the second set of ONUs do not belong to the first set of ONUs. The method also includes, based on the configuration response messages from the second set of ONUs, associating, in the database, each ONU in the second set of ONUs with the second wavelength and with the receiver receiving the configuration response message from the ONU.
摘要:
In accordance with the teachings of the present invention, a system and method for traffic distribution in an optical network is provided. In a particular embodiment, a traffic distribution module in a passive optical network (PON), includes a filter configured to receive downstream traffic in a first set of one or more wavelengths and a second set of one or more wavelengths from an optical line terminal (OLT), direct the traffic in the first set of wavelengths to a primary power splitter, and direct the traffic in the second set of wavelengths to a first connector. The traffic distribution module also includes a primary power splitter and a plurality of secondary power splitters. The primary power splitter is configured to receive the traffic in the first set of wavelengths and distribute the traffic in the first set to the plurality of secondary power splitters coupled to the primary power splitter such that optical network units (ONUs) in the PON receive the traffic in the first set of wavelengths. The traffic distribution module also includes a first connector configured to couple to a first module connector of a pluggable module and to forward the traffic in the second set of wavelengths to the pluggable module via the first module connector. The traffic distribution module also includes a plurality of second connectors configured to couple to a plurality of second module connectors of the pluggable module, receive the traffic in the second set of wavelengths from the pluggable module via the associated second module connectors, and forward the traffic in the second set to the plurality of secondary power splitters for distribution to particular ONUs in the PON.
摘要:
In accordance with the teachings of the present invention, distribution components for a wavelength-sharing network are provided. In a particular embodiment, a distribution node for an optical network includes a first distributor operable to receive a first downstream signal comprising at least traffic in a first wavelength and traffic in a second wavelength from an upstream terminal, route the traffic in the first wavelength to a first plurality of downstream terminals, and route the traffic in the second wavelength to a second plurality of downstream terminals. A second distributor is operable to receive a second downstream signal comprising at least traffic in a third wavelength, and forward the traffic in the third wavelength to at least the first plurality of downstream terminals. A first combining element is operable to receive the traffic in the first wavelength from the first distributor, receive the traffic in the third wavelength from the second distributor, and forward the traffic in the first wavelength and the traffic in the third wavelength to the first plurality of downstream terminals. A second combining element operable to receive at least the traffic in the second wavelength from the first distributor and forward the traffic in the second wavelength to the second plurality of downstream terminals.
摘要:
In accordance with the teachings of the present invention, an upgradeable passive optical network is provided. In a particular embodiment, an upgradeable optical network includes an upstream terminal and a distribution node. The upstream terminal is operable to forward a downstream signal comprising traffic in a first wavelength, the traffic in the first wavelength transmitted by a first transmitter at the upstream terminal. The distribution node is communicatively coupled to the upstream terminal and is operable to communicate the downstream signal from the upstream terminal to a first plurality and a second plurality of downstream terminals. The distribution node comprises a primary power splitter configured to create a plurality of copies of the downstream signal for communication to the downstream terminals. The distribution node is configured to facilitate the addition of a wavelength router at a section of the distribution node such that the wavelength router may be added to the distribution node without interrupting the communication of traffic through the network and such that the addition of the wavelength router allows for routing of traffic in a second wavelength transmitted by a second transmitter to be added at the upstream terminal, the traffic destined for the first plurality of downstream terminals; and routing of traffic in a third wavelength transmitted by a third transmitter to be added at the upstream terminal, the traffic destined for the second plurality of downstream terminals.
摘要:
In accordance with the teachings of the present invention, a system and method for managing communication in a hybrid passive optical network (HPON) is provided. In a particular embodiment, the method includes transmitting, at a first wavelength, a first configuration message on the HPON. The method also includes receiving at one or more of a plurality of receivers at an optical line terminal (OLT) one or more configuration response messages from one or more optical network units (ONUs) in a first set of ONUs. The method further includes, based on the configuration response messages from the first set of ONUs, associating, in a database, each ONU in the first set of ONUs with the first wavelength and with the receiver receiving the configuration response message from the ONU. The method also includes, after transmitting the first configuration message, transmitting, at a second wavelength, a second configuration message on the HPON. The method further includes receiving at one or more of the plurality of receivers at the OLT one or more configuration response messages from one or more ONUs in a second set of ONUs, wherein the ONUs in the second set of ONUs do not belong to the first set of ONUs. The method also includes, based on the configuration response messages from the second set of ONUs, associating, in the database, each ONU in the second set of ONUs with the second wavelength and with the receiver receiving the configuration response message from the ONU.
摘要:
In accordance with the teachings of the present invention, a system and method for distributing traffic in an optical network is provided. In a particular embodiment, an optical network includes an upstream terminal, a distribution node, and a plurality of downstream terminals. The distribution node in the optical network includes a wavelength router configured to receive wavelength division multiplexed (WDM) traffic in a plurality of wavelengths from the upstream terminal, route the traffic in at least one wavelength to a primary power splitter, and route the traffic in a plurality of other wavelengths for distribution to particular downstream terminals. The distribution node also includes a primary power splitter configured to receive the traffic in the at least one wavelength from the wavelength router, split the received traffic in the at least one wavelength into a plurality of copies, and forward the copies for distribution to all of the downstream terminals.
摘要:
In accordance with some embodiments of the present disclosure, a method for spectrally spacing carrier waves comprises determining a frequency offset between a first frequency of a first optical carrier wave and a second frequency of a second optical carrier wave. The method further comprises adjusting the second frequency of the second optical carrier wave according to the frequency offset. The method additionally comprises combining a first optical signal associated with the first carrier wave and a second optical signal associated with he second carrier wave into a multi-frequency signal.
摘要:
According to one embodiment, a system for transmitting an optical signal comprises a traffic distribution circuit configured to distribute traffic to a plurality of wavelength division multiplexer (WDM) modules. The system further comprises a first WDM module and a second WDM module. The first and second WDM modules each comprise a plurality of tunable optical transmitters, with each transmitter associated with a different wavelength band of a plurality of wavelength bands. Each transmitter in the first and second WDM modules is also tuned to transmit optical signals in channels included within the associated wavelength band of the transmitter. The first and second WDM modules each comprise a multiplexer configured to combine the optical signals transmitted from the plurality of transmitters into optical signals. The system further comprises a cyclic multiplexer configured to combine the optical signals from the first and second WDM modules into an optical output signal.
摘要:
In accordance with the present disclosure, a method for conserving power in an optical network comprises determining a signal transmission capability of a first network element optically coupled to a second network element over an optical network. The first network element is configured to transmit an optical signal to the second network element over a path associated with the optical network. The method further comprises determining a transmission requirement of the path between the first and second network elements and determining a difference between the transmission capability and the transmission requirement. Additionally, the method comprises changing at least one of error correction and modulation associated with the optical signal transmitted based on the difference between the transmission capability and the transmission requirement, to reduce power consumption of at least one of the first network element and the second network element.
摘要:
A method for logging system characteristic data of a system is provided. The method includes receiving a plurality of system characteristic data points associated with a first time period of predetermined length, and generating a one or more first power sums from the plurality of system characteristic data points.