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Cost-effective method for generating >20 GHz pulse trains using actively mode locking fiber ring laser

Kim Sun-Jong, Park Chang-Soo

Optica Applicata

2004

Vol. 34, nr 1

17-24

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.