SLOW LIGHT IN OPTICAL FIBERS USING STIMULATED BRILLOUIN SCATTERING
We have studied different approaches for slow light in optical fibers based on stimulated Brillouin scattering (SBS). Using a single laser diode to serve as the primary source for both the optical pump and the signal via the generation of the Stokes wave, the spectral alignment between the signal and the SBS gain peak is automatically achieved. By controlling the pump power, a delay of 7.83 ns has been obtained for an input pulse with a width of 22 ns. To support the delay of an 800-ps input pulse that is associated with a broader frequency linewidth, we have applied phase modulation to the Brillouin pump to enhance the SBS gain bandwidth. A 80-ps delay is observed that corresponds to a relative delay of 0.1. The delay results in a slight distortion of the pulse shape caused by the relative drift between the signal and pump wavelengths. To minimize the degradation, we demonstrate a method to reduce the power fluctuation and to eliminate the relativ wavelength drift using carrier-suppressed intensity modulation together with a fiber-based optical multiplexer.
slow light stimulated Brillouin scattering,nonlinear
Mable P. Fok Alan Cheng Chester Shu
Department of Electronic Engineering and Center for Advanced Research in Photonics,The Chinese University of Hong Kong, Shatin, N. T., Hong Kong
国际会议
成都
英文
237-240
2006-09-18（万方平台首次上网日期，不代表论文的发表时间）