Abstract: A system and method for adaptive equalization in a communication system. The system can include a modulator, a processor coupled to the modulator, and a memory coupled to the processor. The memory can store software instructions that, when executed by the processor, cause the processor to perform operations that can include generating, for each of one or more scan frequencies of interest, an optimal bias setting of the modulator. Data indicating a selection of a range of frequencies to be processed by the communication system can be received at the processor. The operations can include determining, responsive to the receiving, the optimal bias setting corresponding to the selected range of frequencies. A bias of the modulator can be adjusted based on the determined optimal bias setting, the adjusting providing adaptive equalization of the flatness response of the communication system.

Abstract: A system, method, and device for efficiently maintaining a stable operational temperature for precise operation of a laser. The system can include an ambient temperature sensor, a cooler controller adapted to control a cooler having an adjustable setpoint, a processor, and a memory coupled to the processor. The memory can store software instructions that, when executed by the processor, cause the processor to perform operations that can include receiving data from the sensor and determining the ambient temperature based on the received data. The determined ambient temperature can be compared to a current setpoint. When the delta exceeds a predetermined threshold, the setpoint can be adjusted to enable the operating environment of the laser to reach a control temperature closer to ambient conditions (and within a predetermined operating temperature range of the laser). Adjusted setpoint data can be transmitted to the cooler controller to adjust the setpoint of the cooler.

Abstract: A system, method, and device for efficiently maintaining a stable operational temperature for precise operation of a laser. The system can include an ambient temperature sensor, a cooler controller adapted to control a cooler having an adjustable setpoint, a processor, and a memory coupled to the processor. The memory can store software instructions that, when executed by the processor, cause the processor to perform operations that can include receiving data from the sensor and determining the ambient temperature based on the received data. The determined ambient temperature can be compared to a current setpoint. When the delta exceeds a predetermined threshold, the setpoint can be adjusted to enable the operating environment of the laser to reach a control temperature closer to ambient conditions (and within a predetermined operating temperature range of the laser). Adjusted setpoint data can be transmitted to the cooler controller to adjust the setpoint of the cooler.

Abstract: A system and method for adaptive equalization in a communication system. The system can include a modulator, a processor coupled to the modulator, and a memory coupled to the processor. The memory can store software instructions that, when executed by the processor, cause the processor to perform operations that can include generating, for each of one or more scan frequencies of interest, an optimal bias setting of the modulator. Data indicating a selection of a range of frequencies to be processed by the communication system can be received at the processor. The operations can include determining, responsive to the receiving, the optimal bias setting corresponding to the selected range of frequencies. A bias of the modulator can be adjusted based on the determined optimal bias setting, the adjusting providing adaptive equalization of the flatness response of the communication system.

Abstract: A compact photonic radio frequency receiver system includes a laser source that is configured to generate laser light Radio frequency (RF) and local oscillator (LO) input ports may receive RF and LO signals, respectively. One or more miniature lithium niobate waveguide phase modulators may be coupled to the laser source to receive the RF and LO signals and to modulate the laser light with the RF and LO signals in a first and a second path, and to generate phase-modulated laser lights including an RF-modulated light signal and an LO-modulated light signal. A first and a second miniature filter may be coupled to the miniature lithium niobate waveguide to separate a desired spectral band in the phase-modulated laser light of the first path and to facilitate wavelength locking of the laser light of the second path. An optical combiner may combine output laser lights of the first and second filters.

Abstract: A compact photonic radio frequency receiver system includes a laser source that is configured to generate laser light Radio frequency (RF) and local oscillator (LO) input ports may receive RF and LO signals, respectively. One or more miniature lithium niobate waveguide phase modulators may be coupled to the laser source to receive the RF and LO signals and to modulate the laser light with the RF and LO signals in a first and a second path, and to generate phase-modulated laser lights including an RF-modulated light signal and an LO-modulated light signal. A first and a second miniature filter may be coupled to the miniature lithium niobate waveguide to separate a desired spectral band in the phase-modulated laser light of the first path and to facilitate wavelength locking of the laser light of the second path.