ABSTRACT
This chapter introduces the compensation of dispersion effects in the transmission of lightwave-modulated signals is a very critical task in long haul, ultra-high-speed optical communications. It describes only the techniques employing optical filters and resonators, which can be designed and implemented using photonic signal processing methodology. Gain equalization is a technique for making the gain spectrum of an optical amplifier device flatter over a certain optical frequency range. The chapter discusses the double-coupler double-ring circuit operating under a temporally incoherent source. It focuses on the output response rather than the circulating intensity response as the former one can be easily obtained. The performance of optical communication systems can be limited by several effects. One of these effects is the pulse distortion due to fiber chromatic dispersion. The study of pulse propagation in dispersive media is important in many applications, including the transmission of optical pulses through the optical fibers used in optical communication systems.
