Optical Repetition Rate Multiplication Research Articles

32 GHz microwave photonic pulse train generation using 1.6 GHz electronics and optical repetition rate multiplication

A 32 GHz microwave photonic pulse train is generated from a semiconductor fibre ring laser (SFRL) by injecting 1.6 GHz gain-switched Fabry-Perot laser diode (GS-FPLD) output. To achieve a stable modelocking of SFRL at 32 GHz by efficient cross-gain modulation of a semiconductor optical amplifier, individual lasing modes of the injecting 1.6 GHz GS-FPLD output are separated by 31.3 picoseconds by passing a dispersive fibre.

Wavelength-tunable 40 GHz pulse-train generationusing 10 GHz gain-switched Fabry-Perot laser and semiconductor optical amplifier

A simple novel method is described for generating a wavelength-tunable 40 GHz pulse-train from a fibre ring laser with a semiconductor laser amplifier using 10 GHz electronics and optical repetition-rate multiplication. The 40 GHz pulses can be tuned over a 20 nm range with a pulsewidth of /spl sim/8 ps.