Welcome to the Ultrafast Photonics Laboratory

Scope

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​​

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Selected publications

• Optical linewidth of soliton microcombs

​​       Nature Communications 13, 3161 (2022)
       F. Lei, Z. C. Ye, O. B. Helgason, A. Fülöp, M. Girardi  and V. Torres-Company

• Dissipative solitons in photonic molecules

        Nature Photonics 15, 305 (2021)
        O. B. Helgason, F. R. Arteaga-Sierra, Z. C. Ye, K. Twayana, P. A. Andrekson,
        M. Karlsson, J. Schröder, and V. Torres-Company
​

• Overcoming the quantum limit of optical amplification in monolithic waveguides 

       Science Advances 7, eabi8150 (2021)
       Z.C. Ye, P. Zhao, K. Twayana, M. Karlsson, V. Torres-Company,
       and P. A. Andrekson

• Frequency comb calibrated swept-wavelength interferometry 

       Optics Express 29, 24363 (2021)
       K. Twayana, Z. C. Ye, O. B, Helgason, K. Vijayan, M. Karlsson,
       and V. Torres-Company
​

• High-Q Si3N4 microresonators based on a subtractive processing for Kerr nonlinear optics

       Optics Express 27, 378461 (2019)
        Z. Ye, K. Twayana, P. A. Andrekson, and V. Torres-Company

Contact

Victor Torres-Company, PhD
Department of Microtechnology and Nanoscience 
Chalmers University of Technology, 41296 Gothenburg, Sweden

torresv@chalmers.se
Office number: +46(0)31-772 1904

Funding