Conventional optical links combine narrow spectral linewidth lasers with long broad band optical modulators. These invariably consume large amounts of energy – a fundamental physical constraint of this approach and require custom-made power-hungry electrical drivers. Our new Silicon Photonics (SiP+) technology-based system is dramatically simpler in its implementation than the conventional competing approaches.
The SiP+ laser employs a revolutionary method that sees the laser wavelength automatically locked to an ultra-low capacitance PhC resonator that provides direct modulation. The laser is built around a large mode area optical waveguide platform enabling a modular structure that provides high performance Wavelength Division Multiplexing (WDM) capabilities and very efficient fibre coupling. This leads to a dramatic reduction in the amount of energy consumed and is compatible with standard off-the-shelf electronic drivers, thus reducing costs. Our “game-changing” technology allows transceivers to operate within the 40-1000Gbps range in a simplified and cost-effective manner and with an efficient power budget.