Abstract: A bidirectional optical fiber path includes a primary optical fiber path; a secondary optical fiber path coupled to the primary optical fiber path; an optical coupler coupled to both the primary optical fiber path and the secondary optical fiber path; an optical switch coupled to both the primary optical fiber path and the secondary optical fiber path, the optical switch selecting a path of lower optical loses; an optical cross-bar switch coupled to both the primary optical fiber path and the secondary optical fiber path and located between the optical coupler and the optical switch; a primary upstream light detector coupled to the primary optical path between the optical cross bar switch and the optical switch; a secondary upstream light detector coupled to the secondary optical path between the optical cross bar switch and the optical switch; a primary downstream light detector coupled to the primary optical path between the optical cross bar switch and the optical switch; a secondary downstream light detec

Abstract: A bidirectional optical fiber path includes a primary optical fiber path; a secondary optical fiber path coupled to the primary optical fiber path; an optical coupler coupled to both the primary optical fiber path and the secondary optical fiber path; an optical switch coupled to both the primary optical fiber path and the secondary optical fiber path, the optical switch selecting a path of lower optical loses; an optical cross-bar switch coupled to both the primary optical fiber path and the secondary optical fiber path and located between the optical coupler and the optical switch; a primary upstream light detector coupled to the primary optical path between the optical cross bar switch and the optical switch; a secondary upstream light detector coupled to the secondary optical path between the optical cross bar switch and the optical switch; a primary downstream light detector coupled to the primary optical path between the optical cross bar switch and the optical switch; a secondary downstream light detec

Abstract: In fiber-to-the-home (FTTH) RF over Glass (RFoG) Architecture a customer-premise-equipment (CPE) includes a wavelength separator. A method includes up-converting a baseband upstream data signal to a frequency band above a frequency band of a baseband downstream data signal; combining the up-converted upstream data signal with an upstream cable return signal; transmitting the up-converted upstream data signal and the upstream cable return signal using a single upstream laser; and separating, with a wavelength separator, A) a downstream data signal and a downstream cable feed signal from B) the combined up-converted upstream data signal and upstream cable return signal.

Abstract: A method includes detecting wavelength collision including identifying a pair or pairs of ONTs that transmit the colliding wavelengths and recovering from collision wherein wavelengths of the pair or pairs of ONTs that cause collisions are re-adjusted to eliminate the collision.

Abstract: Configuring a generic adaptable reconfigurable digital receiver having a programmable signal conditioner includes specifying a number of output RF channels; specifying an RF bandwidth of an output channel; and selecting a digital to analog sampling rate of a digital to analog convertor of the programmable signal conditioner as a function of the RF bandwidth of the output channel using a processor/demux of the generic adaptable reconfigurable digital receiver.

Abstract: A digital transmitter includes a generic adaptable reconfigurable digital transmitter module; and a reversibly removable module operationally coupled to the generic adaptable reconfigurable digital transmitter module. Configuring a generic adaptable reconfigurable digital receiver having a programmable signal conditioner includes specifying a number of output RF channels; specifying an RF bandwidth of an output channel; and selecting a digital to analog sampling rate of a digital to analog convertor of the programmable signal conditioner as a function of the RF bandwidth of the output channel using a processor/demux of the generic adaptable reconfigurable digital receiver.

Abstract: Methods and apparatus are described for “Smart” RF over Glass (RFoG) CPE Unit with Seamless PON Upgrade Capability. A method includes operating a customer premises equipment device including transporting upstream cable return services with a laser; and switching a drive source for the upstream laser from an analog driver to a digital driver by using a managed electrical switch to reuse a wavelength of the laser. An apparatus includes a customer premises equipment device including a laser for transporting upstream cable return services; and a managed electrical switch coupled to the laser that is used to switch a drive source for the upstream laser to reuse a wavelength of the laser.

Abstract: Transmitting and receiving data includes a process of transferring data over a coaxial network between an optical node and a plurality of cable modems of a hybrid fiber-coaxial cable network. A data transfer system which sends and receives data over a coaxial network located at an optical node of a hybrid fiber-coaxial cable network.

Abstract: Systems and methods are described for an optiplex. A method includes: conveying a first narrowcast signal to a first optical combiner; conveying a second narrowcast signal to a second optical combiner; tapping into said first narrowcast signal; monitoring a first characteristic of said first narrowcast signal; tapping into said second narrowcast signal; monitoring a second characteristic of said second narrowcast signal; combining a broadcast signal with the first narrowcast signal using the first optical combiner; and combining said broadcast signal with the second narrowcast signal using the second optical combiner.

Abstract: Methods and apparatus are described for transmitting and receiving data. A method includes a process of transferring data over a coaxial network at a bandwidth above 1000 MHz, wherein the process of transferring data transfers the data between an optical node and a plurality of cable modems of a hybrid fiber-coaxial cable network. An apparatus includes a data transfer system which sends and receives data over a coaxial network at a bandwidth above 1000 MHz, wherein the data transfer system is located at an optical node of a hybrid fiber-coaxial cable network.

Abstract: A method includes transmitting a plurality of time-division-multiplexed return channels from a plurality of optical network terminal outputs to a plurality of cable modem termination system inputs. Transmitting the plurality of time-division-multiplexed return channels includes transmitting a plurality of frequency-division-multiplexed return signals from the plurality of optical network terminal outputs to the plurality of cable modem termination system inputs. An apparatus includes a plurality of optical network terminals; an optical receiver coupled to the plurality of optical network terminals; an optical splitter coupled to the optical receiver; a plurality of cable modem termination system inputs. A plurality of time-division-multiplexed return channels are transmitted from the plurality of optical network terminals to the plurality of cable modem termination systems and the plurality of time-division-multiplexed return channels include a plurality of frequency-division-multiplexed return signals.

Abstract: A method includes detecting wavelength collision including identifying a pair or pairs of ONTs that transmit the colliding wavelengths and recovering from collision wherein wavelengths of the pair or pairs of ONTs that cause collisions are re-adjusted to eliminate the collision.

Abstract: A method includes cascading outputs from a plurality of photodiodes connected in parallel; and amplifying the cascaded outputs. An apparatus, includes a plurality of photodiodes cascaded in parallel; and an amplifier coupled to the plurality of photodiodes.

Abstract: Methods and apparatus are described for transmitting and receiving data. A method includes a process of transferring data over a coaxial network at a bandwidth above 1000 MHz, wherein the process of transferring data transfers the data between an optical node and a plurality of cable modems of a hybrid fiber-coaxial cable network. An apparatus includes a data transfer system which sends and receives data over a coaxial network at a bandwidth above 1000 MHz, wherein the data transfer system is located at an optical node of a hybrid fiber-coaxial cable network.

Abstract: Methods and apparatus are described for fiber-to-the-home (FTTH) RF over Glass (RFoG) Architecture and customer-premise-equipment (CPE). A method includes up-converting a baseband upstream data signal to a frequency band above a frequency band of a baseband downstream data signal; combining the up-converted upstream data signal with an upstream cable return; transmitting the up-converted upstream data signal and the upstream cable return using a single upstream laser; separating the frequency up-converted data signal from the upstream cable return using an RF diplexer; and down-converting the frequency up-converted upstream data signal back to baseband.

Abstract: Methods and apparatus are described for “Smart” RF over Glass (RFoG) CPE Unit with Seamless PON Upgrade Capability. A method includes operating a customer premises equipment device including transporting upstream cable return services with a laser; and switching a drive source for the upstream laser from an analog driver to a digital driver by using a managed electrical switch to reuse a wavelength of the laser. An apparatus includes a customer premises equipment device including a laser for transporting upstream cable return services; and a managed electrical switch coupled to the laser that is used to switch a drive source for the upstream laser to reuse a wavelength of the laser.

Abstract: Methods and apparatus are described for forward baseband digitalization. A method includes receiving a forward baseband digital optical signal from an optical fiber; transforming the forward baseband digital optical signal to a forward analog electrical signal; transmitting the forward analog electrical signal on an electrical conductor; receiving a reverse analog electrical signal on the electrical conductor; transforming the reverse analog electrical signal to a reverse digital baseband optical signal; and transmitting the reverse digital baseband optical signal.

Abstract: Systems and methods are described for an optiplex. A method includes: conveying a first narrowcast signal to a first optical combiner; conveying a second narrowcast signal to a second optical combiner; tapping into said first narrowcast signal; monitoring a first characteristic of said first narrowcast signal; tapping into said second narrowcast signal; monitoring a second characteristic of said second narrowcast signal; combining a broadcast signal with the first narrowcast signal using the first optical combiner; and combining said broadcast signal with the second narrowcast signal using the second optical combiner.

Abstract: Systems and methods are described for an optiplex. A method includes: demultiplexing a multiplexed narrowcast input signal into a first narrowcast signal and a second narrowcast signal; conveying the first narrowcast signal to a first optical combiner; conveying the second narrowcast signal to a second optical combiner; tapping into said first narrowcast signal; monitoring a first characteristic of said first narrowcast signal; tapping into said second narrowcast signal; monitoring a second characteristic of said second narrowcast signal; combining a broadcast signal with the first narrowcast signal using the first optical combiner to give a first combined optical port output; and combining said broadcast signal with the second narrowcast signal using the second optical combiner to give a second combined optical port output.

Abstract: Methods and apparatus are described for transmitting and receiving data. A method includes a process of transferring data over a coaxial network at a bandwidth above 1000 MHz, wherein the process of transferring data transfers the data between an optical node and a plurality of cable modems of a hybrid fiber-coaxial cable network. An apparatus includes a data transfer system which sends and receives data over a coaxial network at a bandwidth above 1000 MHz, wherein the data transfer system is located at an optical node of a hybrid fiber-coaxial cable network.