Vol. 34, Issue 1, pp. 17-24
Keywords
high-speed, millimeter wave, mode locking fiber laser, Mach–Zehnder interferometer, optical communications
Abstract
This study proposes a simple method to generate high-speed pulse of more than 20 GHz. Its cost performance ratio in an actively rational harmonic mode locking scheme is maximized when the multiplication factor p = 4 and 6. The operation is based on a relatively simple structure using the optical Mach–Zehnder modulator (MZM) biased at the minimum transmission peak and optical filtering via a Mach–Zehnder interferometer (MZI) comb filter. Stable and amplitude-equalized pulse trains with a repetition rate of ~20.345 GHz are successfully demonstrated.