Silicon photonic wavelength-tunable lasers for high-capacity optical communication systems

Silicon photonic wavelength-tunable laser diodes consist of a wavelength-tunable filter with double silicon ring resonators and a compound semiconductor optical amplifier. Narrow spectral linewidth lasers for digital coherent optical communication systems and quantum dot heterogeneous laser diodes were demonstrated. The combination of silicon photonics and compound semiconductor technology leads to a breakthrough in the development of effective and compact integrated light sources for a wide range of application fields.