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HYbrid III-V/Silicon laSer for the future generation of Photonic integrated circuits (HYSSOP)
Start date: Mar 1, 2013, End date: Feb 28, 2015 PROJECT  FINISHED 

"The present project embraces the field of Silicon Photonics, which is expected to play a major role in the future of information and communication technology systems, especially datacenter interconnections, telecom infrastructures and consumer electronics interfaces. Silicon photonics has recently gained a tremendous amount of interest as a means to realize highly integrated optical devices and subsystems. The optical signal is guided in a silicon strip surrounded by silicon-dioxide. The high index contrast between these materials enables the realization of ultra-compact integrated optical devices. Active functions such as electro-optic modulators and detectors can be integrated and an ultra-tight integration of electrical and optical functions is fundamentally achievable. Tremendous advances were made in silicon photonics, demonstrating devices such as wavelength division multiplexing (WDM) filters and electro-optic modulators. However, practical Si-based light sources are still missing today. Such sources constitute the main technological roadblock hindering the development of silicon photonics based systems.The overall objective of the present project is to demonstrate the feasibility of III-V/Si lasers complying with the needs of the future generation of photonic integrated circuits. The mainstream approach is based on the development of quantum dash sources with disruptive performances in terms of power efficiency, noise and thermal stability, explored in conjunction with hybrid integration on a silicon-based platform.A staged approach based on four main technical objectives is proposed:1) Demonstrate the feasibility of WDM transmission using hybrid lasers based on quantum dash active material.2) Demonstrate the use of long silicon passive cavities for low-noise light generation.3) Demonstrate the use of high-Q cavities for low noise light generation.4) Demonstrate low time jitter hybrid mode-locked sources with pulse repetition rates in the GHz range."

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