Tunable X-Band Optoelectronic Oscillators Based on External-Cavity Semiconductor Lasers
Tunable X-Band Optoelectronic Oscillators Based on External-Cavity Semiconductor Lasers
Laser diodes with optical feedback can exhibit periodic intensity oscillations at or near the relaxation-oscillation frequency. We demonstrate optoelectronic oscillators based on external-cavity semiconductor lasers in a periodic dynamical regime tunable over the entire X-band. Moreover, unlike standard optoelectronic oscillators, we need not employ the time-dependent optical intensity incident on …