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

作　　者：高迪 李培丽 邵茜 陈静远 

机构地区：[1]College of Optoelectronic Engineering, Nanjing University of Post & Telecommunications

出　　处：《Optoelectronics Letters》2016年第2期97-100,共4页光电子快报（英文版）

基　　金：supported by the Specialized Research Fund for the National Natural Science Foundation of China(Nos.61275067 and 61302026);the Provincial Natural Foundation of Jiangsu(Nos.BK2012830 and BK2012432)

摘　　要：An ultra-wide and flat optical frequency comb(OFC) generation scheme using multiple continuous wave(CW) light sources based on electro-absorption modulator(EAM) and frequency modulator(FM) is proposed. In the scheme, each CW light source is broadened and modulated by the first EAM and FM, respectively. The second EAM is introduced to flatten the ultra-wide OFC lines. By setting the wavelength spacing of light sources equal to the bandwidth of sub-OFC, an ultra-wide OFC can be obtained. Principle analysis and simulation for the scheme are performed. The results show that in the case of a single light source, a tunable and flat OFC is obtained. With the increase of light sources, the bandwidth of the generated ultra-wide OFC expands rapidly. In the case of 28 light sources, a 22 GHz ultra-wide OFC with bandwidth of 16.52 THz can be generated.

关 键 词：modulator bandwidth spacing tunable modulated flatness slightly oscillator continually seriously 

分 类 号：TN761[电子电信—电路与系统]