Gc. Wilson et al., INTEGRATED ELECTROABSORPTION MODULATOR DBR LASER LINEARIZED BY RF CURRENT MODULATION, IEEE photonics technology letters, 7(10), 1995, pp. 1154-1156
We measure the two-tone intermodulation distortion of an electroabsorp
tion modulator integrated with a DBR laser, Driving the modulator with
an ac current yields a significant improvement in linearity over conv
entional voltage modulation at RF frequencies up to 10 MHz with more t
han 13 dBc reduction in the minimum distortion values at 0.5 MHz. High
-frequency performance is presently limited by the capacitance loading
the current drive.