Gain-assisted superluminal propagation in tellurite glass fiber based on stimulated Brillouin scattering.
We demonstrate superluminal propagation of optical pulses with amplification in optical fibers based on stimulated Brillouin scattering. A triple gain peak configuration is used for the generation of narrowband anomalous dispersion in 2 m tellurite glass fiber, where the group index change as much as -1.19 is achieved with 6.9 dB amplification in 34 ns Gaussian pulses, leading to the group index of 0.84.
Dept. of Physics, Chung-Ang University, Seoul 156-756, Korea. songky@cau.ac.kr
Kwang Yong
KY
Song
Kazi S
KS
Abedin
Kazuo
K
Hotate
D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D005898:Glass / Q000737:chemistry*; D055100:Optical Fibers; D012031:Refractometry; D012542:Scattering, Radiation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013691:Tellurium / Q000737:chemistry*
C009753:fiberglass; C026660:tellurous acid; D013691:Tellurium