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: A pulse-to-pulse frequency-tunable LiNbO3 terahertz-wave parametric oscillator, pumped with a Q-switched Nd:YAG laser, achieves rapid tuning from 1 to 2 THz, with random frequency accessibility.
Abstract: We demonstrated a pulse-to-pulse frequency-tunable LiNbO3 terahertz-wave parametric oscillator, pumped with a Q-switched Nd:YAG laser. Rapid tuning from 1 to 2 THz, with random frequency accessibility, was achieved by rotating the pump beam angle using an optical beam scanner and a telescope.
26 citations
31 Oct 2005
TL;DR: In this paper, a feasibility analysis of using parametric amplification in order to improve the performance of a micromachined rate gyroscope is presented, where the actuation is based on variable force actuators that depend on the force-time variation relation, thus the nonlinear Mathieu equation governs the driving motion.
Abstract: A feasibility analysis of using parametric amplification in order to improve the performance of a micromachined rate gyroscope is presented. The actuation is based on variable force actuators that depend on the force-time variation relation, thus the nonlinear Mathieu equation governs the driving motion. We demonstrated by numerical simulations that in a parametric amplified system with linear mechanical stiffness there exist a flattened region that can be used as the operation region of a 2-DOF microgyroscope. In this way the system is able to achieve a wider bandwidth of operation without sacrificing the sense mode gain: a robust micro sensor that is less sensitive to parameter variations
26 citations
TL;DR: In this paper, a reliable continuously tunable source of 16μm radiation with ∼ 1 2 kW peak power and repetition rates up to 20 pps is described, which consists of an Nd : YAG driven lithium niobate return pump parametric oscillator, with non-linear mixing of the signal and idler wavelengths in cadmium selenide.
26 citations
TL;DR: Nanosecond AgGaS(2) type-I singly resonant optical parametric oscillator pumped by a Q-switched Nd:YAG laser is demonstrated experimentally and the analysis of pump threshold is investigated both theoretically and experimentally.
Abstract: Nanosecond AgGaS(2) type-I singly resonant optical parametric oscillator pumped by a Q-switched 1.064 mum Nd:YAG laser is demonstrated experimentally. Continuously tunable 2.6-5.3 mum radiation and output pulse energy up to 0.6 mJ at 4 mum are achieved in a single-stage conversion process. The analysis of pump threshold is investigated both theoretically and experimentally.
26 citations
TL;DR: In this paper, a high-repetition-rate intracavity opti- cal parametric oscillator (IOPO) based on a non-critically phase-matched KTP crystal placed inside the resonator of a Q-switched Nd:YAG laser was reported.
Abstract: We report a high-repetition-rate intracavity opti- cal parametric oscillator (IOPO) based on a non-critically phase-matched KTP crystal placed inside the resonator of a Q-switched Nd:YAG laser. The IOPO, operating at 1k Hz , produces average powers up to 0:35 W at 1:57 mm and 0:15 W at 3:29 mm. The dynamics of the IOPO is in good qualitative agreement with numerical simulations.
26 citations