Abstract:
A method and system for controlling extinction ratio in an optical network is disclosed. A first optical transceiver sends modulated light to a second optical transceiver and a digital measurement of a signal parameter reflecting the optical power levels of the received modulated light is taken. The modulated light sent by the first optical transceiver is adjusted in accordance with the digital measurement.
Abstract:
A system and method for multiplexing an in-service optical time domain reflectometry (ISOTDR) session (630) using the same wavelength as the data traffic for point-to-point (108) or point-to-multipoint (152) optical fiber networks while not impacting data transmission (601) is disclosed.
Abstract:
Processing a received optical signal in an optical communication network includes equalizing (322) a received optical signal to provide an equalized signal, demodulating (323) the equalized signal according to an m-ary modulation fornat to provide a demodulated signal, decoding (323) the demodulated signal according to an inner code to provide an inner decoded signal, and decoding (324) the inner decoded signal according to an outer code. Other aspects include other features such as equalizing an optical channel including storing channel characteristics during a waiting period between bursts on the channel, and equalizing a received burst from the client using the loaded channel characteristics.
Abstract:
A converter includes an optical fiber input port; an optical detector configured to receive an optical signal over the optical fiber input port and generate a first electrical signal carrying information; and a mixer in electrical communication with the optical detector configured to mix the first electrical signal with a radio frequency carrier wave producing a second electrical signal for transmission by an antenna. The second electrical signal carries the same information as the first electrical signal.
Abstract:
An optical local area network (50) includes a passive optical distribution fabric (110) interconnecting a plurality of nodes including a first node (100) and a plurality of remaining nodes (104A, 104B, 104C), a hub (600) that includes the first node and a control module (106), and a client network adapter (606) coupled to each of the remaining nodes for responding to the control module. The control module controls timing for each of the client network adapters to transmit signals over the passive optical distribution fabric and distribution of signals to each of the nodes.
Abstract:
An optical local area network (50) includes a passive optical distribution fabric (110) interconnecting a plurality of nodes including a first node (100) and a plurality of remaining nodes (104A, 104B, 104C), a hub (600) that includes the first node and a control module (106), and a client network adapter (606) coupled to each of the remaining nodes for responding to the control module. The control module controls timing for each of the client network adapters to transmit signals over the passive optical distribution fabric and distribution of signals to each of the nodes.
Abstract:
A method and system for controlling extinction ratio in an optical network is disclosed. A first optical transceiver sends modulated light to a second optical transceiver and a digital measurement of a signal parameter reflecting the optical power levels of the received modulated light is taken. The modulated light sent by the first optical transceiver is adjusted in accordance with the digital measurement.
Abstract:
Processing a received optical signal in an optical communication network includes equalizing (322) a received optical signal to provide an equalized signal, demodulating (323) the equalized signal according to an m-ary modulation fornat to provide a demodulated signal, decoding (323) the demodulated signal according to an inner code to provide an inner decoded signal, and decoding (324) the inner decoded signal according to an outer code. Other aspects include other features such as equalizing an optical channel including storing channel characteristics during a waiting period between bursts on the channel, and equalizing a received burst from the client using the loaded channel characteristics.
Abstract:
A system and method for multiplexing an in-service optical time domain reflectometry (ISOTDR) session (630) using the same wavelength as the data traffic for point-to-point (108) or point-to-multipoint (152) optical fiber networks while not impacting data transmission (601) is disclosed.