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Updated: Jun 11, 2026
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
Tunable millimeter-wave frequency synthesis up to 100 GHz by dual-wavelength Brillouin fiber laser
Michael C Gross1, Patrick T Callahan, Thomas R Clark
1Milton Eisenhower Research Center, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA. michael.gross@jhuapl.edu
Abstract:
We demonstrate the generation of microwave and millimeter-wave frequencies from 26 to 100 GHz by heterodyning the output modes of a dual-wavelength fiber laser based on stimulated Brillouin scattering. The output frequency is tunable in steps of 10.3 MHz, equal to the free spectral range of the resonator. The noise properties of the beat frequency indicate a microwave linewidth of <2 Hz. We discuss potential for operation into the terahertz regime.
