正弦相位调制下多波长掺铒光纤激光器的研究

孙国勇; 瞿荣辉; 方祖捷; 王向朝

中国激光, 2004, 31 (11): 1293, 网络出版: 2006-06-12

正弦相位调制下多波长掺铒光纤激光器的研究

Study on Multiwavelength Erbium-doped Fiber Laser with Sinusoidal Phase Modulation

论文大纲

孙国勇 ^*瞿荣辉方祖捷王向朝

作者单位

中国科学院上海光学精密机械研究所信息光学实验室, 上海 201800

激光技术光纤激光器相位调制多波长模式竞争 laser technique fiber laser phase modulation multiwavelength mode competition

摘要

通过理论分析并实验验证了一种能在室温下实现稳定的掺铒光纤激光器(EDF)多波长输出的方法。通过在线形谐振腔中引入正弦相位调制器,抑制了由于掺铒光纤的均匀展宽效应引起的模式竞争,从而避免了在室温情况下不稳定的单波长激射。与此同时,线形谐振腔引起的空间烧孔效应也有利于抑制均匀展宽效应。通过取样光纤光栅(SBG)的选频作用,实验中观察到稳定的5个波长的同时激射,相邻波长间隔为0.8 nm,符合ITU标准。

Abstract

A method for realizing a stable multiwavelength erbium-doped fiber laser at room temperature is analyzed theoretically and obtained experimentally. A sinusoidal phase modulation is inserted in the linear cavity, which suppresses the mode competition owing to the homogeneous broaden line in eribum-doped fiber and eliminates the unstable single-wavelength lasing at room temperature. What′s more, the spatial hole burning in linear cavity is propitious to suppress the homogeneous broaden line. Simultaneous five-wavelength lasing is obtained with 0.8 nm intervals defined by the sampled fiber Bragg grating, which is anchored on the ITU frequency grid.

参考文献

[1] . L. Goldstein, L. Eskildsen, V. da Silva et al.. Inhomogeneously broadened fiber-amplifier cascades for transparent multiwavelength lightwave networks[J]. J. Lightwave Technol., 1995, 13(5): 782-790.

[2] . Chow, G. Town, B. Eggleton et al.. Multiwavelength generation in an erbium-doped fiber laser using in-fiber comb filters[J]. IEEE Photon.Technol. Lett., 1996, 8(1): 60-62.

[3] . Hübner, P. Varming, M. Kristensen. Five wavelength DFB fibre laser source for WDM systems[J]. Electron. Lett., 1997, 33(2): 139-140.

[4] . Abraham, R. Nagar, M. N. Ruberto et al.. Intracavity-diode-pumped erbium doped fibre laser[J]. Electron. Lett., 1992, 28(19): 1830-1831.

[5] . Bellemare, M. Karasek, M. Rochette et al.. Room temperature multifrequency erbium-doped fiber lasers anchored on the ITU frequency grid[J]. J. Lightwave Technol., 2000, 18(6): 825-830.

孙国勇, 瞿荣辉, 方祖捷, 王向朝. 正弦相位调制下多波长掺铒光纤激光器的研究[J]. 中国激光, 2004, 31(11): 1293. 孙国勇, 瞿荣辉, 方祖捷, 王向朝. Study on Multiwavelength Erbium-doped Fiber Laser with Sinusoidal Phase Modulation[J]. Chinese Journal of Lasers, 2004, 31(11): 1293.

正弦相位调制下多波长掺铒光纤激光器的研究

关于本站 Cookie 的使用提示

全站搜索

正弦相位调制下多波长掺铒光纤激光器的研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索