光纤环形谐振腔中饱和吸收体光栅的数值模拟和特性分析

徐攀; 胡正良; 马明祥; 姜暖; 胡永明

doi:doi:10.3788/aos201232.0814001

光学学报, 2012, 32 (8): 0814001, 网络出版: 2012-06-19

光纤环形谐振腔中饱和吸收体光栅的数值模拟和特性分析下载： 513次

Numerical Simulation and Characteristics Analysis of Saturable Absorber Grating in Fiber Ring Cavity Resonator

论文大纲

徐攀 ^*胡正良马明祥姜暖胡永明

作者单位

国防科学技术大学光电科学与工程学院, 湖南长沙 410073

激光器光纤激光器饱和吸收体光栅掺铒光纤超窄线宽跳模 lasers fiber laser saturable absorber grating erbium-doped fiber ultra-narrow linewidth mode hopping

摘要

利用耦合非线性微分方程组求解饱和吸收体光栅（SAG）的损耗谱，得到了在无谐振腔时SAG参数与光栅带宽、中心频率损耗、边模抑制比等光栅滤波特性的关系。考虑谐振腔的存在，对SAG纵模边模抑制比进行修正，数值分析了优化区范围及优化程度。结果表明，当满足饱和吸收体长度约为腔内光纤长度1/3时，可实现平坦的边模损耗谱，且在小于由注入功率决定的掺铒光纤长度内，纵模的边模抑制比较无谐振腔时提高了0.3~0.6 dB。采用扫频法初步验证了达到平坦边模损耗谱的条件。

Abstract

The coupled nonlinear differential equations are utilized to solve the loss spectrum of saturable absorber grating (SAG). Without laser cavity, the influences of the parameters of SAG on the filtering behavior of the gratings such as grating bandwidth, loss of the central frequency, sidemode suppression ratio (SMSR), etc. are investigated. Furthermore, the longitudinal mode SMSR in the presence of resonator cavity and the parameter regions for the improvement of the SMSR are discussed. The flat sidemode loss spectrum can be achieved when the length of the saturable absorber is almost one third of the fiber length in the cavity, and SMSR is 0.3~0.6 dB higher than that without a cavity when the length of the SAG is under a certain value due to the power of writing beam. Finally, the condition for the flat sidemode loss spectrum is validated elementally by a frequency-sweep method.

参考文献

[1] 孟洲, 胡永明, 熊水东等. 全保偏光纤水听器阵列［J］. 中国激光, 2002, 29(5): 415～417

Meng Zhou, Hu Yongming, Xiong Shuidong et al.. All polarization maintaining fiber hydrophone array [J]. Chinese J. Lasers, 2002, 29(5): 415～417

[2] 梁讯, 姚琼, 胡永明等. 基于非平衡光纤干涉仪的窄线宽激光器光源跳模实时测试方法［J］. 光学学报, 2009, 29(2): 437～442

Liang Xun, Yao Qiong, Hu Yongming et al.. Real-time mode hopping detection on narrow line-width laser source based on unbalanced fiber interferometer [J]. Acta Optica Sinica, 2009, 29(2): 437～442

[3] Z. Meng, G. Stewart, G. Whitenett. Stable single-mode operation of a narrow-linewidth, linearly polarization, erbium-fiber ring laser using a saturable absorber［J］. J. Lightwave Technol., 2006, 24(5): 2179～2183

[4] M. D. Feuer. Length and power dependence of self-adjusting optical fiber filters［J］. IEEE Photon. Technol. Lett., 1998, 10(11): 1587～1589

[5] S. A. Havstad, B. Fischer, A. E. Willner et al.. Loop-mirror filters based on saturable-gain or -absorber gratings［J］. Opt. Lett., 1999, 24(21): 1466～1468

[6] Jing Yang, Ronghui Qu, Guoyong Sun et al.. Suppression of mode competition in fiber lasers by using a saturable absorber and a fiber ring［J］. Chin. Opt. Lett., 2006, 4(7): 410～412

[7] M. S. Kang, M. S. Lee, J. C. Yong et al.. Characterization of wavelength-tunable single-frequency fiber laser employing acoustooptic tunable filter［J］. J. Lightwave Technol., 2006, 24(4): 1812～1823

[8] P. Agrawal Govind. Nonlinear Fiber Optics, Fourth Edition [M]. San Diego: Elsevier, 2007

[9] S. Stepanov, E. H. Hernández. Phase contribution to dynamic gratings recorded in Er-doped fiber with saturable absorption［J］. Opt. Commun., 2007, 271(1): 91～95

[10] M. Horowitz, R. Daisy, B. Fischer et al.. Linewidth-narrowing mechanism in lasers by nonlinear wave mixing ［J］. Opt. Lett., 1994, 19(18): 1406～1408

[11] H. S. Kim, S. K. Kim, B. Y. Kim. Longitudinal mode control in few-mode erbium-doped fiber lasers［J］. Opt. Lett., 1996, 21(15): 1144～1146

[12] 徐攀, 胡永明, 胡正良等. 光频率调制法测量动态光栅瞬态反射谱特性［J］. 物理学报, 2012, 61(17): 174208

Xu Pan, Hu Yongming, Hu Zhengliang et al.. Measurements of transient reflectance spectrum of dynamic gratings by optical frequency modulation [J]. Acta Physica Sinca, 2012, 61(17): 174208

[13] P. Xu, Z. Hu, N. Jiang et al.. Transient reflectance spectra of adaptive filters based on dynamic population gratings［J］. Opt. Lett., 2012, 37(11): 1992～1997

徐攀, 胡正良, 马明祥, 姜暖, 胡永明. 光纤环形谐振腔中饱和吸收体光栅的数值模拟和特性分析[J]. 光学学报, 2012, 32(8): 0814001. Xu Pan, Hu Zhengliang, Ma Mingxiang, Jiang Nuan, Hu Yongming. Numerical Simulation and Characteristics Analysis of Saturable Absorber Grating in Fiber Ring Cavity Resonator[J]. Acta Optica Sinica, 2012, 32(8): 0814001.

光纤环形谐振腔中饱和吸收体光栅的数值模拟和特性分析下载： 513次

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