Study Of Slow Light Delays Via Stimulated Brillouin Scattering In Microstructured Fibers

This dissertation is supported by National Basic Research Program of China (2010CB327605), National Natural Science Foundation of China (61077049), Program for New Century Excellent Talents in University of China (NCET-08-0736) and the111Project of China (B07005).With the development of the information technology, the demand of the information processing and transmission is increasing, which promotes the all-optical signal processing in the all-optical network. One of the key devices in the all-optical signal processing is the optical buffer based on the slow light technique, which is capable of delaying and storing the optical signal. Among kinds of the slow light techniques, slow light based stimulated Brillouin scattering in microstructured fibers is becoming a hot topic.The slow light based on stimulated Brillouin scattering in microstructured fibers is theoretically and experimentally investigated in this dissertation. The main research contents and results are as follows:1. Techniques of the slow light in fibers especially the slow light based on stimulated Brillouin scattering in microstructured fibers are introduced here. In addition, I introduce the structures and applications of microstructured fibers in detail.2.I theoretically investigate the slow light delay of optical signal in microstructured fibers based on stimulated Brillouin scattering including effects of the pump power, pulse width and pump wavelength on time delays. The results demonstrate that the delay of the optical signal increases with the increasing pump power. When the pump power is160 mW, the delay of the optical signal is not substantially changed. In addition, as the pulse width of the optical signal increases, the delay of the optical signal increases. And the dispersion in the microstructured fiber widens the optical pulse.3. I cooperate with others to set up experimental platform of slow light based on stimulated Brillouin scattering in microstructured fibers. A maximum delay of76ns is achieved, which is equal to0.76pulse width.