Avoiding ONU laser by optical modulation and remodulation
OwnerStephen Brolininventor
Life of this patent
Estimating the term…
Abstract
Tuned lasers in the ONU's are eliminated in WDM PON by use of a burst mode transmission. An apparatus for communicating over a passive optical network comprises a transmitting portion operable to generate an optical signal comprising a first portion modulated with a first data signal and a second portion that is unmodulated and to transmit the optical signal over the passive optical network and a receiving portion operable to receive an optical signal comprising the second portion of the transmitted optical signal modulated with a second data signal.
Claims25
A method of communicating over a passive optical network comprising:
- generating an optical signal modulated with a first data signal at a first network element;
- transmitting the modulated optical signal over the passive optical network from the first network element to a second network element;
- remodulating the received modulated optical signal with a second data signal at the second network element;
- and
- transmitting the remodulated optical signal from the second network element to the first network element.
An apparatus for communicating over a passive optical network comprising:
- a transmitting portion operable to generate an optical signal modulated with a first data signal and to transmit the modulated optical signal over the passive optical network;
- and
- a receiving portion operable to receive an optical signal comprising the transmitted optical signal remodulated with a second data signal.
An apparatus for communicating over a passive optical network comprising:
- a receiving portion operable to receive an optical signal modulated with a first data signal over the passive optical network;
- a remodulating portion operable to remodulate the received optical signal with a second data signal;
- and
- a transmitting portion operable to transmit the remodulated optical signal over the passive optical network.
An apparatus for communicating over a passive optical network comprising:
- a beamsplitter operable to split a received optical signal between a receiving portion and a remodulating portion;
- a remodulating portion operable to remodulate the received optical signal with a second data signal;
- and
- a photodetector operable to detect the first data signal from the received optical signal.
A method of communicating over a passive optical network comprising:
- generating at a first network element an optical signal comprising a first portion modulated with a first data signal and a second portion that is unmodulated;
- transmitting the optical signal over the passive optical network from the first network element to a second network element;
- modulating the second portion of the received optical signal with a second data signal at the second network element;
- and
- transmitting the modulated second portion of the received modulated optical signal from the second network element to the first network element.
An apparatus for communicating over a passive optical network comprising:
- a transmitting portion operable to generate an optical signal comprising a first portion modulated with a first data signal and a second portion that is unmodulated and to transmit the optical signal over the passive optical network;
- and
- a receiving portion operable to receive an optical signal comprising the second portion of the transmitted optical signal modulated with a second data signal.
An apparatus for communicating over a passive optical network comprising:
- a receiving portion operable to receive an optical signal comprising a first portion modulated with a first data signal and a second portion that is unmodulated over the passive optical network;
- a modulating portion operable to modulate the second portion of the received optical signal with a second data signal to form a second optical signal;
- and
- a transmitting portion operable to transmit the second optical signal over the passive optical network.
An apparatus for communicating over a passive optical network comprising:
- a beamsplitter operable to split a received optical signal between a receiving portion and a modulating portion, the received optical signal comprising a first portion modulated with a first data signal and a second portion that is unmodulated;
- a modulating portion operable to modulate the second portion of the received optical signal with a second data signal to form a second optical signal;
- and
- a photodetector operable to detect the first data signal from the received optical signal.
Dependencies are inferred from the claim text.