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We propose a small-signal circuit model for a sampled grating distributed Bragg reflector (SGDBR) laser monolithically integrated with a semiconductor optical amplifier (SOA). The modulation response of different levels of the SOA-integrated SGDBR laser has been analyzed by this model including parasitic effect.
We proposed and demonstrated a simple 2-to-4 line photonic decoder at 40 Gbit/s based on the demodulation properties of two fiber delay interferometers (FDIs) and cross gain modulation (XGM) of four parallel semiconductor optical amplifiers (SOAs). Four logic minterms with high extinction ratio (ER), clear and wide open eye diagrams were obtained simultaneously without continuous-wave (CW) probe lasers.
We demonstrated fast optical power control and wavelength switching in a tunable SOA-integrated SGDBR laser. With our design, output power of the laser can be precisely controlled within 0.1 dB and rapidly shuttered within 2 ns.
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