Optischer IQ-Sender mit einem seriellen IQ-Modulator

DE2006000197 U UPAB: 20060623 NOVELTY - The transmitter has a serial IQ-modulator with which a phase modulator (PM1) is arranged in an in-phase-arm of an IQ-modulator in series to a Mach-Zehnder-modulator (MZM1) and another phase modulator (PM2) is arranged in a quadrature arm is series to another Mach-Zehnder-modulator (MZM2). The phase modulators are supplied with control pulses of two different electrical conditions for realizing of phase shifts of 0 degree or 180 degree. USE - Used for producing high value modulation signals. ADVANTAGE - The phase modulators are supplied with pulses of two different electrical conditions for realizing the phase shifts of 0 degree or 180 degree, thus reducing the higher significance of the necessary electrical conditions for the control pulses, and hence facilitating the transmitter to produce the signals for high data rates without any problem.