MILLIMETER-WAVE GENERATOR AND THE METHOD OF GENERATING THE MILLIMETER-WAVE

摘要

A millimeter wave generator and a method for generating a millimeter wave are provided to perform simultaneously a millimeter wave generating function and a frequency up-converting function by using an optical method and a harmonic locking method. A mode locking laser diode(120) includes a DFB(Distributed FeedBack) region and a gain region in order to generate an optical pulse of a high frequency through passive mode locking. A modulator(200) is used for modulating an external optical signal according to an electrical signal and applying the modulated external optical signal to the mode locking laser diode in order to lock the optical pulse. An RF locking signal unit(320) applies the electrical signal to the modulator. The passive mode locking is formed by applying a current less than a limited current to the DFB region. A millimeter wave is generated by using a high harmonic pulse generated from the mode locking laser diode.