Tunable millimeter-wave frequency synthesis up to 100 GHz by dual-wavelength Brillouin fiber laser.
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.
Gross
Michael C
MC
Milton Eisenhower Research Center, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA. michael.gross@jhuapl.edu
Callahan
Patrick T
PT
Clark
Thomas R
TR
Novak
Dalma
D
Waterhouse
Rodney B
RB
Dennis
Michael L
ML
D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation* / Q000379:methods*; D007834:Lasers; D008872:Microwaves