ELECTROOPTIC-SAMPLING AT VARIABLE MULTIDECADE REPETITION RATES UTILIZING A DIRECTLY MODULATED SEMICONDUCTOR-LASER

The generation of single optical pulses under simultaneous suppression of relaxation oscillations at variable multidecade repetition rates f rom 10 MHz to several GHz is demonstrated. For this purpose special va riable pulse width Gaussian to squarewave-like electrical pulses with a FWHM as low as 60 ps are generated. Simultaneously, high current amp litudes of up to 300 mA at variable repetition rates from 10 MHz up to 8 GHz are realized. The described technique is applied in an electroo ptic-sampling system for the measurement of high-frequency signals on planar hybrid integrated circuits.