Power-efficient silicon nitride soliton microcombs

Microcombs are strong contenders for attaining the frequency stability and performance of standard passively modelocked lasers on a chip scale. Understanding the optical phase noise dynamics in soliton microcombs and enhancing the power efficiency are crucial directions for the development of ultra-low timing jitter pulsed sources on-chip with enhanced repetition rate stability and ultra-low optical linewidth.

The potential applications include next generation of optical clocks, pure microwave signal generation, optical frequency synthesis, broadband and high-resolution analog to digital converters, high-resolution spectroscopy, phase-coherent lightwave communications and the dynamic calibration of external cavity tunable lasers.

In this talk, we will present our results on the phase noise dynamics of soliton microcombs and the development of record-efficiency soliton microcombs in coupled cavities made of silicon nitride.

An invited speaker presentation by Professor Victor Torres Company, Department of Microtechnology and Nanoscience at Chalmers University of Technology.

About Victor Torres Company
Victor Torres-Company is Professor at Chalmers University of Technology in Sweden, where he proudly leads the ultrafast photonics group. His research focuses on areas such as silicon photonics, chip-scale frequency combs, and coherent optical communications. Victor has been honored with an ERC Consolidator grant, acknowledging his team’s contributions to the development of chip-scale and efficient microcombs for high-performance optical communication systems. Their work on microcombs led to record-breaking transmission speeds exceeding one petabit per second.

In addition to his academic achievements, Victor is a co-founder of the startup iloomina AB, dedicated to commercializing ultralow-loss silicon nitride technology. He remains actively involved in the entrepreneurial sphere while continuing to advance research in his role as the director of the excellence center MetaPIX at Chalmers, that focuses on frontier research in silicon photonics.

About Chalmers University of Technology, Ultrafast Photonics Laboratory
Our group performs cutting-edge research in the synthesis and manipulation of laser light at ultrashort time scales (from femtosecond to nanosecond). Our expertise lies in developing technology for laser frequency combs operating at ultra-high repetition rates. We pursue applications in next-generation optical communication systems and ultrafast precision metrology.

Specific research topics are:

  • Microresonator frequency combs (microcombs)
  • Silicon photonics
  • Broadband coherent communications
  • Ultrafast frequency-comb metrology

For more information visit the website.

Victor Torres Company is invited speaker at the 2024 edition of the European Conference on Integrated Optics.

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