FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering, laser and fiber-optic engineering. Device for generation and transmission over a fiber-optic line of electromagnetic oscillations of a given frequency (including industrial frequency) based on the approximation of a sinusoidal function by a sequence of pulse functions using a power and information channels comprises: a control unit, unit for generating and injecting pulses of laser light power flux, unit for generating and injecting information pulses of laser frequency light flux, optical fiber transmission line of laser light power flux, a fiber-optic line for transmitting an information light flux of a laser frequency, a photovoltaic receiver for pulses of a power light flux of a laser frequency, a photovoltaic receiver for pulses of an information light flux of laser frequency, circuit for generation of periodic electric output signal of specified frequency. Output signal of the device is formed from a sequence of electric pulses of the same duration. Electric pulses are obtained as a result of converting the light flux received by the laser radiation receiver into electric pulses by means of a photovoltaic receiver. Light flux to the receiver from the injector is supplied through a fiber-optic transmission line. Intensity of the flux is controlled by switching on a different number of emitting lasers in the laser grid. Period of the output signal is set by the period of control pulses generated by the control unit. Control unit generates a sequence of rectangular pulses following one another. Duration of the open state of the switch and, respectively, duration of radiation of the light flux emitted by the laser grid is equal to the duration of the rectangular pulse generated by the control unit. Control unit monitors the power unit pulse numbers, which have negative polarity. Power pulse received by the laser radiation receiver arrives at the output poles either directly or inverted. Inversion is performed by means of switching circuit and two controlled keys. As a result, a periodic sequence of pulses is generated at output poles of the device and comprises pulses of the required amplitude and polarity.
EFFECT: technical result is transmission of periodic electromagnetic oscillations of given shape, power, frequency, by means of pulse and laser equipment.
1 cl, 7 dwg
