Effects of modulation amplitude and frequency of frequency-modulated fiber lasers on the threshold of the stimulated Brillouin scattering in optical fiber
Stimulated Brillouin scattering (SBS) is a key problem with the increasing power of fiber transmission systems. In this letter, a frequency-modulated fiber laser with an ultra-narrow linewidth is chosen as a light source. The SBS threshold is increased from 4.1 to 6.2 mW at 13-MHz frequency modulation amplitude for a 50-km G652 fiber. We also show that the SBS threshold increases with not only the frequency modulation amplitude, but also the modulation frequency. The modulation frequency should be high enough for effective modulation.
孟洲：College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073, China
备注：This study was supported by the Program for New Century Excellent Talents in the University under Grant No. NCET-06-0925.
【1】R. G. Smith, Appl. Opt. 11, 2489 (1972).
【2】Y. Aoki, K. Tajima, and I. Mito, IEEE J. Lightwave Technol. 6, 710 (1988).
【3】A. K¨ung, “Laser emission in stimulated Brillouin scattering in optical fibers”, PhD. Thesis (Ecole Polytechnique Federale de Lausanne, 1997).
【4】S. Le Floch and P. Cambon, J. Opt. Soc. Am. A 20, 1132 (2003).
【5】T. Shimizu, K. Nakajima, K. Shiraki, K. Ieda, and I. Sankawa, Opt. Fiber Technol. 14, 10 (2008).
【6】G. P. Agrawal, Nonlinear Fiber Optics and Applications of Nonlinear Fiber Optics (Publishing House of Electronics Industry, Beijing, 2002).
【7】B. L¨u, T. Gong, M. Chen, M. Wang, T. Li, G. Chen, and S. Jian, Chin. Opt. Lett. 7, 656 (2009).
【8】Y. Liu, Z. L¨u, Y. Dong, and Q. Li, Chin. Opt. Lett. 7, 29 (2009).
【9】J. Yang, Z. Guo, and K. Zha, Chinese J. Lasers (in Chinese) 28, 439 (2001).
【10】J. Hansryd, F. Dross, M. Westlund, P. A. Andrekson, and S. N. Knudsen, IEEE J. Lightwave Technol. 19, 1691 (2001).
【11】N. Yoshizawa and T. Imai, IEEE J. Lightwave Technol. 11, 1518 (1993).
【12】K. Shiraki, M. Ohashi, and M. Tateda, Electron. Lett. 31, 668 (1995).
【13】C. A. S. de Oliveira, C. K. Jen, A. Shang, and C. Saravanos, J. Opt. Soc. Am. B 10, 969 (1993).
【14】M. J. Li, X. Chen, J. Wang, S. Gray, A. Liu, J. A. Demeritt, A. B. Ruffin, A. M. Crowley, D. T. Walton, and L. A. Zenteno, Opt. Express 15, 8290 (2007).
【15】P. Mitchell, A. Janssen, and J. K. Luo, J. Appl. Phys. 105, 093104 (2009).
【16】Z. Meng, Y. Hu, M. Ni, S. Xiong, R. Zhang, X. Li, G. Stewart, F. Dong, and B. Culshaw, Proc. SPIE 5589, 114 (2004).
【17】Z. Meng, Z. Hu, Y. Hu, S. Xiong, and C. Cao, Proc. SPIE 6552, 65521C (2007).
Wei Chen, Zhou Meng, "Effects of modulation amplitude and frequency of frequency-modulated fiber lasers on the threshold of the stimulated Brillouin scattering in optical fiber," Chinese Optics Letters 8(12), 1124-1126 (2010)