Aspects and examples are directed to programmable optical finite impulse response filters and optical infinite impulse response filters, which may be implemented as photonic integrated circuits.

An optical phase modulator comprises a cascaded array of optical resonators, wherein each of the optical resonators has an input port and an output port. A plurality of waveguides are coupled between the optical resonators and are configured to provide cascaded optical communication between the optical resonators. Each of the waveguides is respectively coupled between the output port of one optical resonator and the input port of an adjacent optical resonator. A transmission electrode is positioned adjacent to the optical resonators, with the transmission electrode configured to apply a drive voltage across the optical resonators. The optical phase modulator is operative to co-propagate an input optical wave with the drive voltage, such that a resonator-to-resonator optical delay is matched with a resonator-to-resonator electrical delay.

Aspects relate to a photonic processing system, an integrated circuit, and a method of operating an integrated circuit to control components to modulate optical signals. A photonic processing system, comprising: a photonic integrated circuit comprising: a first electrically-controllable photonic component electrically coupling an input pin to a first output pin; and a second electrically-controllable photonic component electrically coupling the input pin to a second output pin.

An ultrafast electro-optic laser makes a stabilized comb and includes: a comb generator that produces a frequency comb; a dielectric resonant oscillator; a phase modulator in communication with the dielectric resonant oscillator; an intensity modulator in communication with the phase modulator; an optical tailor in communication with the comb generator and that produces tailored light; a filter cavity in communication with the intensity modulator; a pulse shaper in communication with the filter cavity; a highly nonlinear fiber and compressor in communication with the pulse shaper; an interferometer in communication with the optical tailor and that produces a difference frequency from the tailored light; and an electrical stabilizer in communication with the interferometer and the comb generator and that produces the stabilization signal with a stabilized local oscillator cavity that produces a stabilized local oscillator signal that is converted into the stabilization signal and communicated to the dielectric resonant oscillator.

An RF frequency tuning-in-silicon photoconductive-switch-based high power microwave system including a cradle; a transmission line proximate the cradle; a photosensitive silicon material switch component also proximate the cradle; a laser light source having a varied illumination incidence location on the photosensitive material; and a laser alignment component providing the location of the illumination incidence location on the photosensitive material; whereby the inductance of the switch varies as a function of the incidence location of the illumination on the photosensitive material.

An optical module includes a package including a first member made of a metal material and a second member made of a non-conductive material, the second member facing the first member; a temperature controller fixed in such a manner that one end surface of the temperature controller comes into contact with a surface in a direction of the second member in the first member; a carrier made of a non-conductive material and fixed in such a manner that one end surface of the carrier comes into contact with a surface in an opposite direction to the first member in the temperature controller; and a semiconductor element disposed in either one of a direction of the first member and the opposite direction to the first member with respect to the carrier, and fixed in such a manner that one end surface of the semiconductor element comes into contact with a surface in a direction of the first member in the carrier or a surface in the opposite direction to the first member in the carrier, or in such a manner that one end surface of the semiconductor element comes into contact with a surface in the opposite direction to the carrier in a submount made of a non-conductive material and fixed in such a manner that the submount comes in contact with a surface in a direction of the first member in the carrier or a surface in the opposite direction to the first member in the carrier.

Aspects and examples are directed to programmable optical finite impulse response filters and optical infinite impulse response filters, which may be implemented as photonic integrated circuits.

An electro-optic modulator for modulating a beam of electro-magnetic radiation having a beam path and a beam axis is of a transverse type and comprises: a modulator element that is positioned in the beam path, a housing for receiving the modulator element, which housing forms a resonant cavity, and a coupling device for inputting modulating energy into the housing such that a resonant standing wave is generated within the housing. The housing comprises at least one sidewall that extends substantially parallel to the beam axis over a length, wherein the at least one sidewall comprises a deformed portion such that in the resonant cavity a distance between the sidewall and the beam axis in a direction perpendicular to the beam axis varies over at least a portion of the length of the sidewall.

An ultrafast electro-optic laser makes a stabilized comb and includes: a comb generator that produces a frequency comb; a dielectric resonant oscillator; a phase modulator in communication with the dielectric resonant oscillator; an intensity modulator in communication with the phase modulator; an optical tailor in communication with the comb generator and that produces tailored light; a filter cavity in communication with the intensity modulator; a pulse shaper in communication with the filter cavity; a highly nonlinear fiber and compressor in communication with the pulse shaper; an interferometer in communication with the optical tailor and that produces a difference frequency from the tailored light; and an electrical stabilizer in communication with the interferometer and the comb generator and that produces the stabilization signal with a stabilized local oscillator cavity that produces a stabilized local oscillator signal that is converted into the stabilization signal and communicated to the dielectric resonant oscillator.

An optical module includes an optical element configured to be driven at a high frequency, a circuit board arranged at a height different from a height of the optical element, and a wiring sub-mount including a wiring electrically connecting the optical element and the circuit board, the wiring being such that a height of a connection surface of one end portion of the wiring and a height of a connection surface of another end portion of the wiring are different from each other.