Improved laser modulation response by frequency modulation to amplitude modulation conversion in transmission through a fiber grating

摘要

We have demonstrated that transmission through a fiber grating can increase the system response of a directly modulated semiconductor laser by over 7 dB at all modulation frequencies up to 25 GHz. When combined with dispersive optical fiber, the grating produced a system response that was and had a larger bandwidth, providing a frequency-domain demonstration of larger, flatter, dispersion compensation through an unchirped grating. The effect can be understood as frequency modulation to amplitude modulation conversion by the grating, and was accurately predicted by a Fourier domain analysis of the laser signal and grating. # 1997 American Institute of Physics. S0003-6951 (97)03133-1