Presentation Information
[10a-PA2-2]Simultaneous Oscillation and Stabilization of Optical and Microwave Signals from a Stimulated Brillouin Laser for Electro-Optic Comb Generation
〇(M1C)Manato Toyama1, Haru Takahashi1, Yuta Nakamura1, Atushi Ishizawa1, Junia Nomura1 (1.Nihon Univ.)
Keywords:
Brillouin Laser,Narrow-linewidth Laser,Electro-Optic Comb
Electro-optic combs require both a narrow-linewidth optical source and a highly stable microwave signal to drive an electro-optic modulator, which often makes the system complex. This work investigates a stimulated Brillouin laser based on a home-built Brillouin ring resonator as a compact source for both signals. When the input laser is resonant with the cavity, stimulated Brillouin scattering generates a counter-propagating narrow-linewidth output shifted by about 11 GHz. By heterodyne detection between the input light and Brillouin output, a microwave signal corresponding to the Brillouin frequency shift was obtained. The measured signal appeared at 10.86 GHz with an SNR of about 40 dB. We will discuss further stabilization by optimizing the resonator and applying feedback control, and evaluate applicability to EO-comb generation based on phase-noise and Allan-deviation measurements.