H. Dupont et al., MEASUREMENT OF THE EFFECTIVE PHASE-AMPLITUDE COUPLING FACTOR-ALPHA)(EFF) OF HIGH-SPEED SEMICONDUCTOR OPTICAL AMPLIFIER MODULATOR, IEEE photonics technology letters, 6(8), 1994, pp. 942-944
A semiconductor optical amplifier has been used as an external modulat
or. The large signal response ias shown a 3-dB bandwidth of 3.1 GHz wh
en the amplifier was saturated by the input optical wave. Moreover, th
e effective phase-amplitude coupling factor, which is a typical parame
ter of a semiconductor optical amplifier, was measured to be 8.