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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...
A comparative study of frequency tunable microwave generation using CW injection locked InP based quantum dash mode-locked lasers is presented. Devices with different repetition rates and active region structures are analyzed.
We report microwave oscillation in CW optically injected InAs/InP quantum dash lasers emitting at 1.56 μm, at twice the lasers' self-mode-locked frequency. Narrow linewidths (,140 kHz) with >200 MHz locking range has been observed.
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