Volume 18, Issue 3 ((Iranian Journal of Physics Research,Fall 2018)                   IJPR 2018, 18(3): 391-400 | Back to browse issues page

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Dehghan nayeri H, Asadi R, Khaje M. Design and fabrication of a heterodyne electrooptic modulator in lithium niobate. IJPR. 2018; 18 (3) :391-400
URL: http://ijpr.iut.ac.ir/article-1-2193-en.html
Faculty of Electrical Engineering, Malek Ashtar University, Tehran, Iran , hadi_dehghan_nayeri@yahoo.com
Abstract:   (1999 Views)

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 that it can be stimulated by one specific frequency; these two signals are united optically to create frequencies equal to sum and subtraction of the input signal frequencies in the output. Also, by using finite element method, the influence of proton diffusion scale in the output light mode, electrode dimension, and configuration in the overlap integral of the light mode and electrical field, as well as electrode impedance, is estimated.

Full-Text [PDF 64 kb]   (467 Downloads)    
Type of Study: Research | Subject: Optics and Photonics

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