2017/08/12 by M. Korobko, Mikhail Korobko, F. Y. Khalili +2 · 1 citation
Engineering · Physics and Astronomy · #Advanced MEMS and NEMS Technologies #Amplifier #Geophysics and Sensor Technology #Interferometry #Laser #Mechanical and Optical Resonators #Michelson interferometer #Optical amplifier #Optical cavity #Optical parametric amplifier #Optics #Optoelectronics #Oscillation (cell signaling) #Parametric oscillator #Parametric statistics #Phase (matter) #Physics #Quantum mechanics #Sensitivity (control systems) #gr-qc #quant-ph
paper · pdf · doi:10.1016/j.physleta.2017.08.008
8 pages, 4 figures
openalex publication_date 2017/08/12 · openalex created_date 2017/08/17 · arxiv created 2017/11/09 · arxiv updated 2017/11/10 · openalex updated_date 2026/08/06
The 'optical spring' results from dynamical back-action and can be used to improve the sensitivity of cavity-enhanced gravitational-wave detectors. The effect occurs if an oscillation of the cavity length results in an oscillation of the intra-cavity light power having such a phase relation that the light's radiation pressure force amplifies the oscillation of the cavity length. Here, we analyse a Michelson interferometer whose optical-spring cavity includes an additional optical-parametric amplifier with adjustable phase. We find that the phase of the parametric pump field is a versatile parameter for shaping the interferometer's spectral density.