期刊
OPTICS LETTERS
卷 38, 期 16, 页码 3137-3139出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.38.003137
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资金
- National Basic Research Program of China [2012CB315705]
- National Natural Science Foundation of China [61107063, 61201048]
- Natural Science Foundation of Jiangsu Province [BK2012031, BK2012381]
- Fundamental Research Funds for the Central Universities
- SRF for ROCS, SEM
- Natural Science Foundation Plan Project of Fujian Province [2012D143]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
A scheme to generate a flat optical frequency comb (OFC) with a fixed phase relationship between the comb lines is proposed and experimentally demonstrated based on a cascaded polarization modulator (PolM) and phase modulator. Because the PolM introduces more controllable parameters compared with the conventional intensity modulator, 9, 11, and 13 comb lines can be generated with relatively low RF powers, or 15, 17, and 19 comb lines can be obtained if high RF powers are applied. The experimentally generated 9, 11, and 13 OFCs have a flatness of 1, 1.3, and 2.1 dB, respectively. The scheme requires no DC bias to the modulators, no optical filter, and no frequency divider or multiplier, which is simple and stable. (C) 2013 Optical Society of America
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