In this dissertation , a novel m - z high speed modulator is proposed , analyzed , fabricated and measured , employing multiple quantum well ( mqw ) structures and traveling wave ( tw ) electrodes to meet the demand of low voltage and wide bandwidth 本論文采用行波量子阱結(jié)構(gòu)來設(shè)計40ghz的電光調(diào)制器。為實現(xiàn)高帶寬,低驅(qū)動的要求,本論文著重在量子阱的光學(xué)特性和器件的微波特性兩個方面進(jìn)行了深入的研究。