Abstract: Dispersion compensating phase filters, their method of manufacture and use are presented. The phase filters are designed to compensate for chromatic dispersion accumulated by a telecommunication optical signal when travelling in a dispersive line. The phase filter is made by first determining a target dispersion compensating phase profile of a channel of the telecommunication optical signal. This determination involves discretizing the phase profile of the dispersive line into a plurality of frequency sub-bands over a bandwidth of the channel, each frequency sub-band having a width selected on view of compensating the chromatic dispersion. For each frequency sub-band, an average phase value of the phase profile of the dispersive line is computed, and then converted to an equivalent 2Pi-bound phase value, used in building the target dispersion compensating phase profile. A spectral filtering structure embodying the target dispersion compensating profile is manufactured.

Abstract: Methods for automatically tuning optical transceivers is provided. In an embodiment a method includes sampling a received signal within an optical network to generate a sampled signal containing a first tuning message transmitted from an optical transceiver; for each of a plurality of signal pattern waveforms, performing a dot product operation of the sampled signal with the signal pattern waveform; and determining, based on the results of the dot product operations, a matching signal pattern waveform, being a given one of the signal pattern waveforms matching the sampled signal. Corresponding systems for automatically tuning optical transceivers are also provided.

Abstract: A method for programming a network transceiver is provided. The method includes: providing a network transceiver having a programming interface; obtaining transceiver identification information via a radio-frequency transceiver programming system (RTPS); obtaining, via the RTPS, configuration data for the network transceiver based on the transceiver identification information; transmitting, via the RTPS, at least some of the configuration data via a radio-frequency (RF) interface; and programming the network transceiver via the programming interface using the at least some of the configuration data received via the RF interface. Corresponding systems, apparatuses (including smart labels, host devices, and transceivers) are also provided.

Abstract: There is provided an external cavity laser, including: a photonic integrated platform including a gain chip providing a gain medium and at least one reflector chip, the photonic integrated platform including first and second functional layers made of different materials; a resonant cavity optically coupled to the gain medium and including a first and a second micro-ring resonators (MRR) in a Vernier configuration, the first MRR and second MRR extending within respective ones of the first and second functional layers made of different materials and having corresponding group indices, the first and second MRRs having different radii selected in view of said corresponding group indices; and a tuning mechanism for tuning a spectral response of at least one of the first and second MRR.

Abstract: Systems may include one or more directly modulated laser (“DML”) optical transmitters to transmit optical signals carrying data to one or more optical receivers and include one or more filters designed to reduce the power in lower modulation levels. In various embodiments, the optical receiver includes an optical combiner to combine local oscillator light at a frequency, fLO with the optical data signal, an optical-electrical converter to downconvert the combined LO-optical signal to an electrical signal including four PAM4 frequencies, an electrical filter to attenuate the electrical power in the PAM4 frequencies by differing amounts, rectify and output the electrical signal. Systems may include extinction ratio management and thermal chirp compensation, and may include optical filters designed for chirp management with different laser parameters (? and k) and OMAs with PAM-M format in both optical and electrical domains and for use with quasi-coherent receivers (QCR) and DML transmitters.

Abstract: Systems may include one or more directly modulated laser (“DML”) optical transmitters to transmit optical signals carrying data to one or more optical receivers and include one or more filters designed to reduce the power in lower modulation levels. In various embodiments, the optical receiver includes an optical combiner to combine local oscillator light at a frequency, fLO with the optical data signal, an optical-electrical converter to downconvert the combined LO-optical signal to an electrical signal including four PAM4 frequencies, an electrical filter to attenuate the electrical power in the PAM4 frequencies by differing amounts, rectify and output the electrical signal. Systems may include extinction ratio management and thermal chirp compensation, and may include optical filters designed for chirp management with different laser parameters (? and k) and OMAs with PAM-M format in both optical and electrical domains and for use with quasi-coherent receivers (QCR) and DML transmitters.

Abstract: A method for programming a network transceiver is provided. The method includes: providing a network transceiver having a programming interface; obtaining transceiver identification information via a radio-frequency transceiver programming system (RTPS); obtaining, via the RTPS, configuration data for the network transceiver based on the transceiver identification information; transmitting, via the RTPS, at least some of the configuration data via a radio-frequency (RF) interface; and programming the network transceiver via the programming interface using the at least some of the configuration data received via the RF interface. Corresponding systems, apparatuses (including smart labels, host devices, and transceivers) are also provided.

Abstract: Systems and methods for programming pluggable transceivers are provided. In an embodiment, a method includes receiving RFID data from an RFID device in proximity to a network transceiver via an RFID antenna in the network transceiver, said RFID data defining an operating configuration of the network transceiver; and programming the network transceiver according to the operating configuration defined by the received RFID data. In an embodiment, a network transceiver includes: a host interface for connecting to a host; a network interface for transmitting and receiving signals to and from a network; an RFID antenna for receiving RFID data; and a controller in operative communication with the network interface and the RFID antenna, said controller operating the network interface according to an operating configuration, wherein the operating configuration of the controller is programmed using the RFID data received via the RFID antenna. Various other embodiments are also provided.