中国激光, 2018, 45 (5): 0501005, 网络出版: 2018-05-21   

可调谐多倍布里渊频移间隔多波长光纤激光器 下载: 634次

Multiwavelength Fiber Lasers with Tunable Multiple Brillouin Frequency Shift Interval
作者单位
南京邮电大学电子与光学工程学院先进光子技术实验室, 江苏 南京 210023
摘要
实验研究了波长间隔为双倍和三倍布里渊频移的多波长布里渊掺铒光纤激光器, 通过改变布里渊抽运波长实现了多波长激光器的调谐。实验得到了波长间隔为双倍布里渊频移即 0.17 nm的8个布里渊多波长激光产生, 输出波长可以在 110 nm(1528~1638 nm)范围内调谐;还得到了波长间距为三倍布里渊频移即0.26 nm的5个布里渊多波长激光产生, 输出波长可以在60 nm范围(1535~1595 nm)内调谐。另外, 实验还发现布里渊抽运激光波长在激光器自激发振荡波长范围内时, 产生的布里渊波长数达到最大值。该研究在密集波分复用光纤通信系统、微波光子学、光纤传感、光谱测量等领域具有重要的应用前景。
Abstract
Multiwavelength Brillouin erbium-doped fiber lasers with wavelength spacing of double and triple Brillouin frequency shifts are reported, and the multiwavelength tunable lasers are realized through changing the Brillouin pump wavelength. The experimental results show that eight Brillouin wavelengths with wavelength spacing 0.17 nm of double Brillouin frequency shifts are generated, and the wavelength can be tuned in a range of 110 nm (1528-1638 nm). Meanwhile, five Brillouin wavelengths with wavelength spacing 0.26 nm of triple Brillouin frequency shifts are obtained, and the wavelength can be tuned in a range of 60 nm (1535-1595 nm). Additionally, the experimental results also indicate that the Brillouin wavelength number can reach the maximum when the wavelength of the Brillouin pump laser is in the range of the self-excited oscillation. This tunable multiwavelength Brillouin fiber laser with multiple Brillouin frequency shift interval has important applications in many fields, including dense wavelength division multiplex optical fiber communication system, microwave signal generation, optical fiber sensing, and spectrum measurement.

邓宇翔, 张祖兴. 可调谐多倍布里渊频移间隔多波长光纤激光器[J]. 中国激光, 2018, 45(5): 0501005. Deng Yuxiang, Zhang Zuxing. Multiwavelength Fiber Lasers with Tunable Multiple Brillouin Frequency Shift Interval[J]. Chinese Journal of Lasers, 2018, 45(5): 0501005.

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