Modeling of an analog fiber-optic link with an injection-locked semiconductor laser

Summary form only given. Subcarrier-modulated (SCM) fiber-optic systems have applications in cable television distribution, and phased array antenna systems. The transmission capacity of the SCM system employing direct laser modulation is generally limited by the bandwidth of the semiconductor laser. Recently, several groups have proposed the use of strong injection-locking technique to enhance the modulation bandwidth. In this report, we present, to our knowledge, the first theoretical investigation of an analog optical fiber link using a directly-modulated semiconductor laser under strong injection-locking. The analysis is based on rate equations, which include phase and amplitude noises in both master and slave lasers.