Generation of Flat Optical-Frequency Comb Using Cascaded Intensity and Phase Modulators

被引：70
|
作者：
Dou, Yujie [1 ]
Zhang, Hongming [1 ]
Yao, Minyu [1 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, State Key Lab Integrated Optoelect, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2012年 / 24卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Optical-frequency comb; phase modulation; pulse shaping; radio-frequency photonics; AMPLITUDE;
D O I：
10.1109/LPT.2012.2187330
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A scheme using one intensity modulator and two phase modulators driven directly by sinusoidal waveform to generate an optical-frequency comb (OFC) is experimentally demonstrated. It is relatively simple, where Bragg grating or specially tailored waveforms are not used. By setting the ratio of direct-current bias to half-wave voltage and phase shifts between sinusoidal waveform applied on the intensity and two phase modulators at appropriate values, 29 comb lines with spectral power variation less than 1.5 dB at 10 GHz are obtained. And the scheme has adjustability; a flat-top OFC with frequency spacing of 9.5-10 GHz is achieved.
引用
收藏
页码：727 / 729
页数：3
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