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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >100-mW linear polarization single-frequency all-fiber seed laser for coherent Doppler lidar application
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100-mW linear polarization single-frequency all-fiber seed laser for coherent Doppler lidar application

机译：用于相干多普勒激光雷达的100mW线性偏振单频全光纤种子激光器

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摘要

A compact short-cavity fiber laser configured with Er~(3+)/Yb~(3+) highly co-doped phosphate glass fiber with stable linear polarization and single frequency output is proposed and investigated experimentally. The fiber laser is composed of a high-reflectivity fiber Bragg grating (HRFBG) and a polarization-maintaining fiber Bragg grating (PMFBG) with the matched wavelengths at 1540.3 nm, which aims at one of the center wavelengths of the atmospheric transmission windows and may be used as the local oscillator (LO) of the coherent Doppler lidar (CDL). The output power of the laser reaches more than 114-mW, the signal-to-noise ratio is larger than 70 dB and the laser linewidth is about 4.1-kHz. Moreover, the linear polarization with 40.5 dB extinction ratio, the power fluctuation of less than +-0.25percent and the frequency fluctuation of less than +-80 MHz are also obtained. Compared with the DFB fiber laser, the proposed fiber laser is more suitable for the CDL applications.
机译：提出了一种紧凑的短腔光纤激光器，该激光器由稳定的线偏振和单频输出的Er〜（3 +）/ Yb〜（3+）高共掺杂磷酸盐玻璃纤维构成。光纤激光器由高反射光纤布拉格光栅（HRFBG）和保偏光纤布拉格光栅（PMFBG）组成，它们的匹配波长为1540.3 nm，其瞄准大气透射窗口的中心波长之一，并且可能用作相干多普勒激光雷达（CDL）的本地振荡器（LO）。激光器的输出功率达到114 mW以上，信噪比大于70 dB，并且激光器的线宽约为4.1 kHz。此外，还获得了消光比为40.5 dB的线性极化，小于+ -0.25％的功率波动和小于+ -80 MHz的频率波动。与DFB光纤激光器相比，该光纤激光器更适合CDL应用。

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