Chinese Optics Letters, 2009, 7 (1): 0129, Published Online: Mar. 4, 2009
Research on stimulated Brillouin scattering suppression based on multi-frequency phase modulation Download: 619次
光纤通信系统 多频相位调制 等幅光谱线 受激布里渊散射 抑制 060.2330 Fiber optics communications 060.3510 Lasers, fiber 140.0140 Lasers and laser optics
Abstract
The method of generating equal-amplitude spectral lines by multi-frequency phase modulation is used in stimulated Brillouin scattering (SBS) suppression. The spectra of three, five, seven, and eleven equal-amplitude spectral lines are obtained in experiment with flatnesses less than 0.3 dB. Theoretical research on SBS suppression shows that the threshold power after modulation is in reverse proportion to the maximum square of amplitude moduli of fundamental frequency and the nth harmonic wave. The threshold powers of three, five, seven, and eleven equal-amplitude spectral lines are improved by 5.21, 8.36, 9.39, and 10.76 dB, respectively.
. Research on stimulated Brillouin scattering suppression based on multi-frequency phase modulation[J]. Chinese Optics Letters, 2009, 7(1): 0129.