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篇目详细内容 |
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【篇名】 |
Short cavity single-frequency all-fiber Er/Yb co-doped laser |
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【刊名】 |
Frontiers of Optoelectronics in China |
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【刊名缩写】 |
Front. Optoelectron. China |
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【ISSN】 |
1674-4128 |
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【EISSN】 |
1674-4594 |
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【DOI】 |
10.1007/s12200-009-0003-2 |
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【出版社】 |
Higher Education Press and Springer-Verlag |
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【出版年】 |
2009 |
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【卷期】 |
2
卷1期 |
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【页码】 |
81-85
页,共
5
页 |
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【作者】 |
Ming ZHAO;
Yubin GUO;
Tianshu WANG;
Xuanguo SHEN;
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【关键词】 |
optoelectronics and laser; Er/Yb co-doped fiber (EYDF); fiber laser; single-frequency; relative intensity noise |
【摘要】 |
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A 5-cm-long Er/Yb co-doped all-fiber laser is studied. Two fiber Bragg gratings (FBGs) are written in the Er/Yb co-doped sensitive fiber using UV beams. A 980nm pumping laser diode (LD) is used, and output wavelength is selected by two FBGs. The single-frequency laser is achieved at 1544.68nm. The 3dB spectrum width is 0.08nm, while the side mode suppression ratio is 55dB. The maximum output power exceeds 4mW for pump power of 140mW and the stability is less than ±0.01dB. Single-frequency operation is verified using a scanning Fabry-Perot (F-P) interferometer. Relative intensity noise is less than −100dB. A 10Gbit/s code rate is used in the fiber laser transmission experiment. A good optical eye diagram is received after 21km single-mode fiber transmission. A simple distributed Bragg reflection(DBR) fiber laser array is designed. The wavelength difference of output laser array is 0.8nm, conforming to the ITU─T channel spacing standard of wavelength-division multiplexing systems. |
