Generation of ultra-wide and flat optical frequency comb based on electro absorption modulator

作     者：Ujjwal Jaisingh Thangaraj Ujjwal;Jaisingh Thangaraj

作者机构：Department of Electronics Engineering Indian Institute of Technology (Indian School of Mines) 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2018年第14卷第3期

页      面：185-188页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：Generation of ultra-wide and flat optical frequency electro absorption modulator 

摘      要：A novel technique is proposed for the generation of ultra-wide and flat optical frequency comb(OFC)based on serially cascading three stages of electro absorption modulators(EAMs)through sinusoidal radio frequency(RF)signals by setting frequencies at f GHz,f/2 GHz and f/4 ***,the first stage acts as subcarrier generator,the second stage acts as subcarrier doubler,and the third stage acts as subcarrier *** addition,a higher number of subcarriers can easily be generated by adjusting the driving sinusoidal RF *** this paper,cascading three stages of EAMs driven by50 GHz,25 GHz and 12.5 GHz clock sources,we obtain 272 subcarriers with spacing of 2.5 GHz and power deviation within 1 d *** analysis of serially cascaded EAMs for subcarrier generation is also *** analysis and simulation of this technique are demonstrated.