CMOS-compatible Silicon-based Micro-ring resonator for on-chip Optical Frequency comb generation...

Frequency combs have been attracting worldwide attention since J. Hall and T. Hänsch were awarded the 2005 Nobel Prize in Physics for their invention of frequency combs. Frequency combs, normally generated by ultra-fast lasers, have revolutionized the way to measure the frequency of light and became versatile instruments important to frequency metrology just as a conventional ruler is to a carpenter.

Researchers have also demonstrated their potentials in a growing number of applications that rely on the precise control of light waves including high-precision spectroscopy, molecular fingerprinting, astronomical spectrographs calibration, high-capacity communication, and optical waveform and microwave signal synthesis. However, the current expensive and bulky laser-based frequency combs exhibit relatively low repetition rates, limited bandwidth and operation frequency ranges which hamper their implementations in those emerging applications. Recently, a new frequency comb generation principle has been emerged which uses parametric frequency conversion in compact microresonators.

The SiMOF project proposes to use silicon platform to develop an ultra-compact, low-cost, on-chip frequency comb generator with high performance based on micro-ring resonators and successful realization of such devices will be beneficial to myriad applications.