دهقان نیری, هادی
دانشکده برق و الکترونیک، دانشگاه صنعتی مالک اشتر، تهران
[ 1 ] - طراحی و ساخت مدولهکننده هتروداین الکترواپتیک در لیتیوم نایوبایت
In this research, design and fabrication of an integrated heterodyne electrooptic modulator in lithium niobate have been presented. In this modulator, the waveguide is made by using proton exchange process; to exert two high frequency signals, deposited electrodes with Mach-Zender arms between them are used. In this method, every electrical signal is applied on one of the Mach-Zender arms, so t...
[ 2 ] - آنالیز تاثیر نقص در لبه موجبر تپهای ساخته شده در لیتیوم نایوبایت
In this research, the capability of new approach of making ridge waveguides in lithium niobate by Argon physical etching and diffusion of titanium is investigated. For this purpose, the proportion of light mode confinement in the ridge section is measured and compared to simulation results. Also the effect of ridge wall defects -which is a challenge of this kind of waveguides- in light power di...
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