Wide Wavelength Polarization-insensitive Electro-absorption Modulator with Low-driving Voltage

We present a 25 Gb/s wide wavelength polarization-insensitive electro-absorption modulator (PIM) operating at a low-driving voltage. Over 8 dB dynamic extinction ratio was obtained in the wavelength range of 1540-1560 nm with polarization sensitivity around 1.1 dB, at the driving-voltage as low as 1.8 Vpp.