Counter propagating control and signal pulse interactions exist in many important optical components in fiber optical communication networks and ultra-fast signal processing systems employing semiconductor optical amplifiers. Challenges facing this particular interaction configuration are considered analytically. Signal pulse propagation is studied by solving its traveling-wave equation under a perturbation approximation with the control pulse arriving at the opposite side of the semiconductor optical amplifier. The derived analytical expressions of optical impulse response clearly elucidate the physics involved in counter-propagating configurations.
© 2000 Optical Society of America
(060.4510) Fiber optics and optical communications : Optical communications
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors
D. Zhou, I. Glesk, and P. R. Prucnal, "Optical Impulse Response of Semiconductor Optical Amplifiers in a Counter-Propagation Mach-Zehnder Switch," in Photonics in Switching, P. Prucnal and D. Blumenthal, eds., Vol. 32 of OSA Trends in Optics and Photonics (Optical Society of America, 1999), paper 144.
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