Topic
Parametric oscillator
About: Parametric oscillator is a research topic. Over the lifetime, 5836 publications have been published within this topic receiving 95631 citations. The topic is also known as: Parametric excitation.
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TL;DR: In this article, the approximate fundamental response of a driven mechanical oscillator with a quadratic stiffness characteristic is studied by using the method of harmonic balance, and the accuracy of the periodic solutions based on first approximation theory, and their stability, are compared with exact results obtained from direct time integration.
41 citations
TL;DR: In this paper, the noise figure (NF) properties of an undepleted and lossless dual-pump fiber-optic parametric amplifier (FOPA) were theoretically and numerically investigated.
Abstract: The noise figure (NF) properties of an undepleted and lossless dual-pump fiber-optic parametric amplifier (FOPA) are theoretically and numerically investigated The theoretical study takes into account the noise characteristics of the two pump waves that are considered to have parallel polarization states for gain maximization It is shown that noisy pump waves degrade the amplifier's NF, especially when the amplifier is operating at high gain values and when the input signal is high The theoretical observations are validated by Monte Carlo numerical simulations, and the agreement between them is excellent Finally, a comparative study concerning the noise characteristics of dual-pump and single-pump FOPAs is performed
40 citations
TL;DR: In this article, the transfer of energy from high-to-low-frequency modes was investigated using the method of averaging, which is used to analyze the response of a two-degree-of-freedom system with widely spaced frequencies and cubic nonlinearities.
Abstract: An investigation is presented into the transfer of energy from high- to low-frequency modes. The method of averaging is used to analyze the response of a two-degree-of-freedom system with widely spaced frequencies and cubic nonlinearities to a principal parametric resonance of the high-frequency mode. The conditions under which energy can be transferred from high- to low-frequency modes, as observed in the experiments, are determined. The interactions between the widely separated modes result in various bifurcations, the coexistence of multiple attractors, and chaotic attractors. The results show that damping may be destabilizing. The analytical results are validated by numerically solving the original system.
40 citations
TL;DR: The OAPA incorporates two transverse cavity modes such that the carrier and sideband fields simultaneously resonate, and it is less susceptible to the laser phase and amplitude noise, which significantly ease the experimental requirements for cooling of acoustic modes to their quantum-ground state and creating entangled pairs of phonons and photons.
Abstract: We introduce the three-mode optoacoustic parametric amplifier (OAPA), a close analog of the optical parametric amplifier, for macroscopic quantum mechanics experiments. The radiation pressure reaction of light on the reflective surface of an acoustic resonator provides a nonlinearity similar to the Kerr effect in the optical parametric amplifier. The OAPA can be tuned to operate in a positive gain regime where acoustic signals are amplified or in a negative gain regime where acoustic modes are cooled. Compared with conventional optoacoustic devices, (i) the OAPA incorporates two transverse cavity modes such that the carrier and sideband fields simultaneously resonate, and (ii) it is less susceptible to the laser phase and amplitude noise. These two features significantly ease the experimental requirements for cooling of acoustic modes to their quantum-ground state and creating entangled pairs of phonons and photons.
40 citations
TL;DR: Intracavity-pumping Raman laser action in a fiber-laser-pumped, single-resonant, continuous-wave (cw) MgO:PPLN optical parametric oscillator with a high-Q linear resonator has been observed for the first time to the authors' knowledge.
Abstract: Intracavity-pumped Raman laser action in a fiber-laser–pumped, single-resonant, continuous-wave (cw) MgO:PPLN optical parametric oscillator with a high-Q linear resonator has been observed for the first time to our knowledge. Experimental results of this phenomenon investigation will be discussed.
40 citations