Using mutually modulated cross-gain modulation, Stokes optical frequency changes are converted into modulation phase changes with high sensitivity. In the slow-light transition regime, we demonstrate kilohertz sensitivity to the Stokes optical carrier frequency. The sensitivity is inversely proportional to the modulation frequency of the pump and Stokes beams.
© 2011 Optical Society of America
Original Manuscript: June 28, 2011
Revised Manuscript: August 24, 2011
Manuscript Accepted: September 21, 2011
Published: October 19, 2011
Shmuel Sternklar, Maxim Vart, Alexander Lifshitz, Shalom Bloch, and Er’el Granot, "Kilohertz laser frequency sensing with Brillouin mutually modulated cross-gain modulation," Opt. Lett. 36, 4161-4163 (2011)