Alongside improving the operating speed of silicon based travelling wave Mach-Zehnder modulators and ring modulators, imec says it has also developed a C-band GeSi electro-absorption modulator with an electro-optical bandwidth in excess of 50GHz. This, it explains, will enable NRZ modulation at data rates of 56Gbit/s and beyond.
The 50Gbit/s components are included in imec’s 200mm silicon photonics multiproject wafer portfolio and are supported by a Process Design Kit.