期刊
OPTICS EXPRESS
卷 25, 期 23, 页码 29078-29085出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.25.029078
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资金
- National Key Research and Development Program of China [2016YFB0402204]
- National Natural Science Foundation of China (NSFC) [11674103, 61635004, 61535014]
- Fundamental Research Funds for Central Universities [2015ZM091, 2017BQ002]
- China National Funds for Distinguished Young Scientists [61325024]
- Guangdong Natural Science Foundation [2016A030310410, 2017A030310007]
- Science and Technology Project of Guangdong [2014B050505007, 2015B090926010, 2016B090925004]
Based on the heavily Er3+/Yb3+ co-doped phosphate glass fiber (EYPF) with a larger emission cross-section, an efficient linearly-polarized single-frequency distributed Bragg reflector fiber laser at 1603 nm is demonstrated. By balancing the cavity length against the longitudinal mode spacing, a stable single-longitudinal-mode laser with more than 20 mW is generated from a 16-mm-long EYPF. The measured relative intensity noise of the fiber laser is less than -140 dB/Hz at frequencies of over 5 MHz. The signal-to-noise ratio is greater than 62 dB and the linewidth is less than 1.9 kHz, while the obtained polarization extinction ratio is higher than 25 dB. The L-band operating combined with the narrow linewidth and low noise characteristic makes this laser an ideal candidate for high-resolution molecular spectroscopy and coherent lidar applications. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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