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Related Concept Videos

Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
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Resonance is produced depending on the boundary conditions imposed on a wave. Resonance can be produced in a string under tension with symmetrical boundary conditions (i.e., has a node at each end). A node is defined as a fixed point where the string does not move. The symmetrical boundary conditions result in some frequencies resonating and producing standing waves, while other frequencies interfere destructively. Sound waves can resonate in a hollow tube, and the frequencies of the sound...
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Related Experiment Video

Updated: May 18, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Antiresonant ring output-coupled continuous-wave optical parametric oscillator.

Kavita Devi1, S Chaitanya Kumar, A Esteban-Martin

  • 1ICFO-Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels, Barcelona, Spain. kavita.devi@icfo.es

Optics Express
|October 6, 2012
PubMed
Summary
This summary is machine-generated.

An antiresonant ring interferometer offers precise control over output coupling in continuous-wave optical parametric oscillators (OPOs). This technique optimizes power extraction for both signal and idler waves, enhancing OPO performance.

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Area of Science:

  • Nonlinear optics
  • Laser physics

Background:

  • Continuous-wave optical parametric oscillators (cw OPOs) are crucial for generating tunable laser light.
  • Optimizing output coupling is essential for maximizing power extraction and efficiency in OPOs.
  • Conventional methods for output coupling adjustment can be cumbersome and lack fine control.

Purpose of the Study:

  • To demonstrate the effectiveness of an antiresonant ring (ARR) interferometer for achieving optimum output coupling in a cw OPO.
  • To investigate the tunability and performance of an ARR-coupled cw singly-resonant oscillator (SRO).
  • To assess the impact of ARR integration on OPO output beam quality.

Main Methods:

  • Integration of an ARR interferometer into the cavity of a MgO:PPLN-based cw SRO.
  • Pumping the OPO with a 1064 nm Ytterbium-fiber laser.
  • Varying the ARR transmission to achieve a continuously tunable signal output coupling from 0.8% to 7.3%.

Main Results:

  • Successful demonstration of continuously variable output coupling using the ARR interferometer.
  • Achieved optimum output coupling for the signal and efficient power extraction for the idler at various pumping levels.
  • Experimental results align with theoretical predictions for cw SROs.
  • No degradation in the output beam quality was observed with the ARR integration.

Conclusions:

  • The ARR interferometer provides a robust method for in situ, fine control of output coupling in cw OPOs.
  • This technique enables maximization of output power at any pumping level above threshold.
  • Further enhancement of ARR-coupled cw SRO performance is possible by reducing insertion losses.